AC

adenylyl cyclase
adenylyl cyclase#English

(biochemistry) Initialism of adenylyl cyclase.


katal

From Ancient Greek κατάλυσις (katálusis, “dissolution”), from καταλύω (katalúō, “I dissolve”), from κατά (katá, “down”) + λύω (lúō, “I loose”).

der

International System of Units
International System of Units

(chemistry) In the International System of Units, the derived unit of catalytic activity; one mole per second. Symbol: kat.


-ase

Derived from ending of diastase; a libfix


enzyme

en-noun

enzyme (countable and uncountable, plural enzymes)

From German Enzym, coined 1878 by the German physiologist Wilhelm Kühne from Ancient Greek ἐν (en, “in”) + ζύμη (zúmē, “sourdough”).

affix

en:proteinaceous or ribonucleic biocatalyst

(biochemistry) A biomolecule that catalyses a biological chemical reaction: either a globular protein with this function or an RNA molecule with this function.

Coordinate term: ribozyme

(strictly) The protein type specifically.

(Christianity) Leavened bread, as opposed to azyme.


GC

en-noun

GC (countable and uncountable, plural GCs)

guanylate cyclase
guanylate cyclase#English

(biochemistry) Initialism of guanylate cyclase.


permease

(biochemistry) Any of several enzymes that transport membrane proteins.

permeaasi

enzyme that transports membrane proteins


catalyst

Enzymes, the catalysts of biological systems, are remarkable molecular devices that determine the pattern of chemical transformations.

1988, Lubert Stryer, Biochemistry, 3rd edition, page 177:

(chemistry) A substance that increases the rate of a chemical reaction without being consumed in the process.

حَفَّاز

substance which increases the rate of a chemical reaction without being consumed in the process


oxygenase

From German Oxygenase, corresponding to oxygen + -ase.

(biochemistry) An enzyme which catalyses biochemical reactions with oxygen.


actinidin

actinidin (countable and uncountable, plural actinidins)

(biochemistry) A protein-digesting enzyme present in kiwi fruit. It is also an allergen.


yearning

yearning (countable and uncountable, plural yearnings)

PIE word
 *ḱóm
From earlier yerning, from Middle English yernyng, erning, renning. From Old English rynning and gerunnen, geurnen (“run together, coagulated, curdled”), past participles of gerinnan, geirnan, respectively. Influenced by Middle English yern (“to (cause to) coagulate or curdle”), Old English iernan (“to run, flow”), metathesized forms derived from the same origin. From verbal prefix ge- + rinnan (“to run”). First element is from Proto-West Germanic *ga-, from Proto-Germanic *ga-, from Proto-Indo-European *ḱóm (“with, by”); second element is from Proto-Germanic *rinnaną, from Proto-Indo-European *h₃r̥-néw-ti, from *h₃er- (“to move”). Doublet of rennet, run.

m+

(Scotland, archaic) rennet (an enzyme to curdle milk in order to make cheese).


maltase

en-noun

maltase (countable and uncountable, plural maltases)

(biochemistry) An enzyme that catalyzes the hydrolysis of maltose to glucose; often associated with amylase.

maltáza

an enzyme that catalyzes the hydrolysis of maltose to glucose


catalysis

catalysis (countable and uncountable, plural catalyses)

From Ancient Greek κατάλυσις (katálusis, “dissolution”), from καταλύω (katalúō, “I dissolve”), from κατά (katá, “down”) + λύω (lúō, “I loose”). By surface analysis, cata- + -lysis.

(chemistry) The increase of the rate of a chemical reaction, induced by a catalyst.

կատալիզ

chemistry: the increase of the rate of a chemical reaction induced by a catalyst


catalyze

en-verb

catalyze (third-person singular simple present catalyzes, present participle catalyzing, simple past and past participle catalyzed)

catalyzes (present singular third-person)
catalyzing (participle present)
catalyzed (participle past)
catalyzed (past)

en:to bring about the catalysis of a chemical reaction

(transitive) To bring about the catalysis of a chemical reaction.


amylase

en-noun

amylase (countable and uncountable, plural amylases)

egg yolk amylase

Egg yolks contain a starch-digesting enzyme, amylase, that is remarkably resistant to heat. Unless a starch-egg mix is brought to a full boil, the yolk amylase will survive, digest the starch, and turn the stiff cream into a pourable one.

2004, Harold McGee, chapter 2, in On Food and Cooking: The Science and Lore of the Kitchen, Scribner, →ISBN:

(biochemistry) Any of a class of digestive enzymes, present in saliva and also contributed to the gut by the exocrine pancreas, that break down complex carbohydrates such as starch into simpler sugars such as glucose.

amilasa

enzyme, present in saliva, that breaks down carbohydrates such as starch


CK

(biochemistry) Initialism of creatine kinase.


histaminase

We suggest, however, that the substance, or system, which produces a change in structure responsible for the loss of physiological activity of histamine be designated histaminase.

1930 December 4, C. H. Best, E. W. McHenry, “The inactivation of histamine”, in The Journal of Physiology:

(biochemistry) A widely occurring flavoprotein enzyme that oxidizes histamine and various diamines.


coenzyme A

adenosine triphosphate
adenosine triphosphate

(biochemistry) A coenzyme, formed from pantothenic acid and adenosine triphosphate, that is necessary for fatty acid synthesis and metabolism.


transacetylase

(biochemistry) Any enzyme that catalyzes the transfer of an acetyl group from one molecule to another. It is produced by the ‘a’ structural gene of the lac operon.


transaminase

(biochemistry) Any of a group of enzymes that catalyze transamination.

轉氨酶

biochemistry: any of a group of enzymes that catalyze transamination


coenzyme

(biochemistry) Any small molecule that is necessary for the functioning of an enzyme.


transcriptase

(biochemistry) A polymerase that catalyzes the transcription of DNA to RNA.


reverse transcriptase

reverse transcriptase (plural reverse transcriptases)

(biochemistry) A polymerase that catalyzes the formation of DNA from an RNA template.


polymerase

(biochemistry) Any of various enzymes that catalyze the formation of polymers of DNA or RNA using an existing strand of RNA or DNA respectively as a template.

聚合酶

enzyme that catalyses the formation of polymers


transhydrogenase

(biochemistry) A mitochondrial enzyme that transports protons across a cell membrane.


transferase

(biochemistry) Any of various enzymes that catalyze the transfer of a functional group, such as amine or phosphate from one molecule to another.

transferasa

enzyme which catalyses the transfer of a functional group


transposase

transposase (countable and uncountable, plural transposases)

(biochemistry) An enzyme required for the transposition of transposons


polymerization

polymerization (countable and uncountable, plural polymerizations)

(organic chemistry) The chemical process, normally with the aid of a catalyst, to form a polymer by bonding together multiple identical units (monomers).


nitrogenase

(biochemistry) Any enzyme, especially in nitrogen-fixing bacteria, that catalyzes the conversion of atmospheric nitrogen into ammonia.


PK

PK (countable and uncountable, plural PKs)

(biochemistry) Initialism of protein kinase.


invertase

invertase (usually uncountable, plural invertases)

The costs incurred for the processing of sucrose with invertase could be considerably reduced with the introduction of immobilised invertases, by adopting technology similar to that developed for glucose isomerase.

1995, L. F. J. Woods, S. J. Swinton, “8: Enzymes in the starch and sugar industries”, in Gregory A. Tucker, L.F.J. Woods, editors, Enzymes in Food Processing, page 257:

The disaccharide sucrose and the trisaccharide raffinose are both substrates of invertase. Invertase is encoded by the SUC genes from which six unlinked loci have been identified (SUC1-SUC5, SUC7), which are dipersed through the yeast genome (Lampen, 1968; Ouwehand and van Wijk, 1972; Ottolenghi, 1971).

1997, Karl-Dieter Entian, Hans-Joachim Schüller, “Chapter 13: Genetics of Di- and Trisaccharide Utilization”, in Friedrich K. Zimmermann, Karl-Dieter Entian, editors, Yeast Sugar Metabolism, page 226:

Up-regulation of these invertases is a common response to infection (Hall and Williams, 2000).

2004, J. S. C. Clark, P. T. N. Spencer-Phillips, “The Compatible Interaction in Downy Mildew Infections”, in Peter Spencer-Phillips, Michael J. Jeger, editors, Advances in Downy Mildew Research, volume 2, page 18:

2013, Maria Kamiko Kadowaki, Rite de Cássia Garcia Simão, Jose Luís da Conceição Silva, Clarice Aoki Osaku, Luis Henrique Souza Guimarāes, 1: Biotechnical Advances in Fungal Invertases, Maria de Lourdes T. M. Polizeli, Mahendra Rai (editors), Fungal Enzymes, page 14,
The methods used for the immobilization of fungal invertases include adsorption, covalent binding, cross-linking and entrapment (Uzun et al. 2011).
Nelson and Griffin (1916) reported that invertase was the first enzyme to be immobilized, and it was bound on charcoal and aluminium hydroxide. Subsequently, mant fungal invertases have been immobilized onto a variety of media […] .

(biochemistry, organic chemistry) An enzyme that catalyzes the hydrolysis of sucrose into glucose and fructose (invert sugar), used by bees to produce honey and in the food industry to soften chocolate.


urokinase

urokinase (countable and uncountable, plural urokinases)

deep vein thrombosis
deep vein thrombosis

(biochemistry) A protease, found in the urine, which converts plasminogen to plasmin, and is used in the treatment of deep vein thrombosis.


adaptive enzyme

adaptive enzyme (plural adaptive enzymes)

(biochemistry) An enzyme that is present in the cell only under conditions in which it is clear of adaptive value.


rennet

rennet (countable and uncountable, plural rennets)

From Middle English renet, a variant of renelesse, renels, renlys, rendlys (“rennet”), from rennen (“to run”), from Old English rennan, from Proto-Germanic *rannijaną. Compare Middle Dutch rinsel, runsel (“rennet”), Middle English irennen (“to curdle; to run”), Old English ġerennan (“to coagulate”), German gerinnen (“to coagulate; congeal”).

cog

An enzyme used as the first step in making cheese, to curdle the milk and coagulate the casein in it, derived by soaking the fourth stomach of a milk-fed calf in brine.


MAO

monoamine oxidase
monoamine oxidase#English

(biochemistry) Initialism of monoamine oxidase.


trypsin

en-noun

trypsin (countable and uncountable, plural trypsins)

From Ancient Greek τρῖψις (trîpsis, “rubbing”) + -in, since the substance was first found on rubbing down the pancreas with glycerine.

af

(biochemistry) A digestive enzyme that cleaves peptide bonds (a serine protease)


PKC

protein kinase C
protein kinase C#English

(biochemistry) Initialism of protein kinase C.


zymase

(biochemistry) Any of a group of enzymes that catalyze the fermentation of simple carbohydrates to ethanol and carbon dioxide.


DNA polymerase

en-noun

DNA polymerase (countable and uncountable, plural DNA polymerases)

(biochemistry) An enzyme that assists DNA replication.


catalytic converter

catalytic converter (plural catalytic converters)

(automotive) A chamber containing a finely divided platinum catalyst in which carbon monoxide and hydrocarbons from vehicle exhaust are oxidized to carbon dioxide.

محول حفزي

chamber in which carbon monoxide and hydrocarbons from vehicle exhaust are oxidized into carbon dioxide


aluminoxane

organometallic compound
organometallic compound

(organic chemistry) a class of organometallic compounds of aluminium having general formula R₂Al-O-AlR₂; they are used as catalysts in the polymerization of epoxides and oxetanes to form polyether elastomers.


Vandenberg catalyst

Vandenberg catalyst (plural Vandenberg catalysts)

From Edwin J. Vandenberg, American chemist.

(organic chemistry) An aluminoxane, prepared from an alkyl-aluminium and water, used as a catalyst in the manufacture of polyether elastomers.


homogeneous catalysis

homogeneous catalysis (plural homogeneous catalyses)

(chemistry) Catalysis in which the catalyst is present in the same phase as the reactants; normally dissolved in the same solvent.

catalyse homogène

catalysis in which the catalyst is present in the same phase as the reactants


tyrosinase

tyrosinase (countable and uncountable, plural tyrosinases)

(biochemistry) An enzyme, similar to catechol oxidase, that catalyzes the production of phenolic pigments such as melanin.


catalytic

en-adj

catalytic (comparative more catalytic, superlative most catalytic)

more catalytic (comparative)
most catalytic (superlative)

(chemistry) Of or relating to a catalyst; having properties facilitating chemical reaction or change.


xanthine oxidase

en-noun

xanthine oxidase (plural xanthine oxidases)

(biochemistry) A crystallizable flavoprotein enzyme containing iron and molybdenum that promotes the oxidation especially of hypoxanthine and xanthine to uric acid and of many aldehydes to carboxylic acids and that is obtained usually from milk or liver.


thrombin

thrombin (countable and uncountable, plural thrombins)

(biochemistry) An enzyme in blood that facilitates blood clotting by converting fibrinogen to fibrin (by means of ionized calcium).


autocatalysis

(chemistry) catalysis of a reaction by one of its products


autocatalytic

(chemistry, of a reaction) catalyzed by one of its own products


ribonuclease

(biochemistry) Any of a group of enzymes that catalyze the hydrolysis of ribonucleic acid.

ribonucléase

enzyme catalyzing the hydrolysis of ribonucleic acid


acetylcholinesterase

acetylcholinesterase (countable and uncountable, plural acetylcholinesterases)

(biochemistry) An enzyme that catalyzes the hydrolysis of the neurotransmitter acetylcholine into choline and acetic acid.


hydrolase

→ Polish: hydrolaza

(biochemistry) An enzyme that catalyzes the hydrolysis of a substrate.


monoamine oxidase

monoamine oxidase (plural monoamine oxidases)

monoamine oxidases (plural)
as MAO (abbreviation)

(biochemistry) Either of two enzymes, found in the outer membrane of mitochondria, that degrade biogenic amines and are thus responsible for the destruction of transmitter substances at neuronal synapses.

monoaminooxidasa

biochemistry: enzyme that degrades biogenic amines


oxidase

From oxide + -ase introduced by Gabriel Bertrand.

The effects of hemoglobin in anemia and chlorosis, and even in tuberculosis, are due to its triple action; it acts opotherapeutically, through the blood oxydases, which it contains when properly prepared.

1915, “Hemoglobin in Anemia”, in American Medicine, volume 21, page 22:

(biochemistry) Any of many enzymes which catalyze oxidation reactions, especially ones using molecular oxygen.


TPN

triphosphopyridine nucleotide
triphosphopyridine nucleotide#English

(biochemistry) Initialism of triphosphopyridine nucleotide.


NADP

nicotinamide adenine dinucleotide phosphate#English

(biochemistry) Initialism of nicotinamide adenine dinucleotide phosphate.


DPN

DPN (countable and uncountable, plural DPNs)

diphosphopyridine nucleotide
diphosphopyridine nucleotide#English

(biochemistry) Initialism of diphosphopyridine nucleotide.


NAD

(biochemistry) Initialism of nicotinamide adenine dinucleotide.


nicotinamide adenine dinucleotide

nicotinamide adenine dinucleotide (uncountable)

The treatment in mice involved boosting their levels of Nicotinamide adenine dinucleotide (NAD) – a natural protein that already controls DNA repair in our body.

2017 March 24, Tom Bawden, Not getting any older may be possibility after key discovery, in the i, № 1,975, page 15/5:

(biochemistry) An organic coenzyme involved in biological oxidation and reduction reactions.


diphosphopyridine nucleotide

diphosphopyridine nucleotide (plural diphosphopyridine nucleotides)

diphosphopyridine nucleotides (plural)
as DPN (abbreviation)

nicotinamide adenine dinucleotide
nicotinamide adenine dinucleotide

(biochemistry) nicotinamide adenine dinucleotide


triphosphopyridine nucleotide

triphosphopyridine nucleotide (plural triphosphopyridine nucleotides)

triphosphopyridine nucleotides (plural)
as TPN (abbreviation)

nicotinamide adenine trinucleotide
nicotinamide adenine trinucleotide

(biochemistry) nicotinamide adenine trinucleotide


nicotinamide adenine trinucleotide

nicotinamide adenine trinucleotide (uncountable)


isoenzyme

(biochemistry) Any of a group of enzymes that catalyze the same reaction but have different structures and physical, biochemical and immunological properties.


metalloenzyme

(biochemistry) Any enzyme that contains a metal atom which is essential for its biological activity


pepsin

pepsin (countable and uncountable, plural pepsins)

From German Pepsin, corresponding to Ancient Greek πέψις (pépsis, “digestion”) + -in.

der

(biochemistry) A digestive enzyme that chemically digests, or breaks down, proteins into shorter chains of amino acids.


oxidoreductase

From its morphology, oxido- + reductase.

It remains to be seen whether oxidoreductase deficiency is a significant cause of non-syndromic ambiguous genitalia in newborn females and undermasculinized males of unknown diagnosis as assessed by urinary steroid analyses.

2011, Charles G. D. Brook, Peter Clayton, Rosalind Brown, Brook's Clinical Pediatric Endocrinology, page 196:

(biochemistry) Any enzyme that catalyzes an oxidation-reduction (redox) reaction.


PAH

phenylalanine hydroxylase
phenylalanine hydroxylase#English

(biochemistry) Initialism of phenylalanine hydroxylase.


dinitrogenase reductase

(biochemistry) One of two enzymes which, together with ATP, catalyze the reduction of molecular nitrogen into ammonia.


dinitrogen reductase

dinitrogenase reductase
dinitrogenase reductase


dinitrogenase

(biochemistry) Either of two enzymes which, together with ATP, catalyze the reduction of molecular nitrogen into ammonia.


dioxygenase

(biochemistry) Any of several enzymes that catalyze dioxygenation reactions


en-noun

nicotinamide adenine dinucleotide phosphate (uncountable)

(biochemistry) The phosphate of nicotinamide adenine dinucleotide; a coenzyme important in fatty acid synthesis.


phospholipase

(biochemistry) Any of several enzymes that hydrolyze the phosphate ester bonds of phospholipids.


phosphatase

(biochemistry) Any of several enzymes that hydrolyze phosphate esters, and are important in the metabolism of carbohydrates, nucleotides and phospholipids, and in the formation of bone.

磷酸酶

an enzyme that hydrolyzes phosphate esters


TR

thioredoxin reductase
w:thioredoxin reductase

(biochemistry) Initialism of thioredoxin reductase.


papain

Attested since the late 1800s. From papaya + -in.

(biochemistry) A proteolytic enzyme in papaya fruit which can be used to tenderize meat.


laccase

Higushi (54) reported on mushroom phenol oxidase prepared by the method of Freudenberg and its use for oxidation of coniferyl alcohol and related compounds and demonstrated that the enzyme product was a mixture of tyrosinase and laccase.

1962, Forest Products Journal, volume 12, page 142:

(biochemistry) Any of several copper-containing oxidase enzymes found in plants and microorganisms.


protease

/ˈpɹəʊtɪeɪz/

As a matter of fact the casein protease digests boiled and coagulated serum far more easily than unboiled serum, as set forth by the following experiments.

1903 November 2, S. G. Hedin, “On the presence of a proteolytic enzyme in the normal serum of the ox”, in The Journal of Physiology, volume 30, number 2, page 195:

All were tested for their ability to clot milk and to hydrolyze denatured hemoglobin, egg albumin, protamine (salmon), histone (calf thymus), and benzoyl-l-arginineamide. In no case was any trace of protease activity detected.

1948 September 20, Margaret R. McDonald, “A method for the preparation of "protease-free" crystalline ribonuclease”, in Journal of General Physiology, volume 32, number 1, page 39:

For our purposes, it is sufficient to note that dysregulation of desquamatory protease activity in the SC is often involved in conditions of compromised skin barrier.

2015, Raja Sivamani, Jared R. Jagdeo, Peter Elsner, Cosmeceuticals and Active Cosmetics:

(biochemistry) An enzyme that cuts or cleaves proteins.

蛋白質分解酵素

たんぱくしつぶんかいこうそ


restriction enzyme

restriction enzyme (plural restriction enzymes)

We now know of 400 different kinds of restriction enzymes, each of which recognises a different sequence of DNA letters and cuts there, like a pair of scissors that cuts the paper only where it finds the word ‘restriction’.

1999, Matt Ridley, Genome, Harper Perennial, published 2004, page 244:

(genetics) An endonuclease that catalyzes double-strand cleavage of DNA containing a specific sequence.


sulphatase

(biochemistry) Alternative spelling of sulfatase


sulfatase

(biochemistry) Any of several enzymes, in animals and bacteria, which catalyze the hydrolysis of organic sulfates


exonuclease

(biochemistry, genetics) Any of a group of enzymes which cleave single nucleotides from the end of a polynucleotide (DNA or RNA) chain.


exoenzyme

(biochemistry) Any enzyme, generated by a cell, that functions outside of that cell.


endoenzyme

(biochemistry) Any enzyme that functions within the cell in which it was generated.


exopeptidase

(biochemistry) Any of a group of enzymes which catalyze the removal of a single amino acid from the end of a polypeptide chain


endopeptidase

(biochemistry) Any of a group of enzymes, such as trypsin, chymotrypsin, pepsin and elastase, which catalyze the splitting of polypeptide chains away from the ends


endonuclease

(biochemistry) Any enzyme which catalyzes the cleavage of nucleic acids so as to produce variously sized fragments.


photolyase

photolyase (countable and uncountable, plural photolyases)

(biochemistry) An enzyme that repairs DNA that has been damaged by light.

fótaláis

an enzyme that repairs DNA that has been damaged by light


photophosphorylase

(biochemistry) An enzyme that is involved in the photosynthetic phosphorylation of ATP.


MMO

methane monooxygenase
methane monooxygenase#English

(biochemistry) Initialism of methane monooxygenase.. See Methane monooxygenase.


nuclease

(biochemistry) Any of several enzymes capable of cleaving the phosphodiester bonds between the nucleotide subunits of nucleic acids.

核酸酶

any of several enzymes capable of cleaving the phosphodiester


coagulase

(biochemistry) Any enzyme that induces coagulation

(biochemistry) Specifically, the enzyme produced by various Staphylococcus species that converts fibrinogen to fibrin


lactase

lactase (countable and uncountable, plural lactases)

(biochemistry, organic chemistry) A β-galactosidase enzyme that is involved in the hydrolysis of the disaccharide lactose into constituent galactose and glucose monomers.


telomerase

(biochemistry, genetics) An enzyme in eukaryotic cells that adds a specific sequence of DNA to the telomeres of chromosomes after they divide; gives the chromosomes stability over time.


mutase

(biochemistry) An isomerase that catalyzes the shifting of a functional group from one position to another within the same molecule


elastase

elastase (countable and uncountable, plural elastases)

An endopeptidase enzyme involved in the breakdown of elastin.


chymotrypsin

chymotrypsin (countable and uncountable, plural chymotrypsins)

(biochemistry) An endopeptidase enzyme that cleaves peptides at the carboxyl side of tyrosine, tryptophan, and phenylalanine amino acids.


catalase

catalase (countable and uncountable, plural catalases)

An enzyme found in the liver that catalyses the decomposition of hydrogen peroxide to water and oxygen.

过氧化氢酶 (guòyǎnghuàqīng méi, literally “hydrogen peroxide enzyme”)


catalyse

en-verb

catalyse (third-person singular simple present catalyses, present participle catalysing, simple past and past participle catalysed)

catalyses (present singular third-person)
catalysing (participle present)
catalysed (participle past)
catalysed (past)

(chemistry) (chiefly British spelling) Alternative spelling of catalyze


reductase

disulfide reduction by glutathione is a three-step process, the last of which is catalyzed by glutathione reductase

2008, Louis J. Casarett, Curtis D. Klaassen, Casarett and Doull's toxicology: the basic science of poisons, McGraw-Hill Professional, page 187:

(biochemistry) An enzyme that chemically reduces its substrate.


catechol oxidase

(biochemistry) An enzyme, similar to tyrosinase, that catalyses the oxidation of phenols such as catechol.


peroxidase

(biochemistry) Any of a class of enzymes that act on substrates such as hydrogen peroxide and organic hydroperoxides such as lipid peroxides.


diastase

From Ancient Greek διάστασις (diástasis, “separation”).

uder

(biochemistry) Any one of a group of enzymes which catalyse the breakdown of starch into maltose; mostly amylases (α-amylase and β-amylase).

diastaasi

enzyme which catalyses the breakdown of starch into maltose


lipase

(biochemistry) Any of a group of enzymes which catalyses the hydrolysis of lipids.


kinase

From Ancient Greek κινεῖν (kineîn, “to move”) + -ase, a suffix forming enzyme names.

(biochemistry, organic chemistry) Any of a group of enzymes that transfer phosphate groups from high-energy donor molecules, such as ATP, to specific target molecules (substrates), in a process termed phosphorylation.


stereospecific catalyst

en-noun

stereospecific catalyst (plural stereospecific catalysts)

(physical chemistry) a catalyst that preferentially catalyzes the formation of one of a pair of stereoisomers, or one of a set of stereoisomeric polymers


rhomboid protease

rhomboid protease (plural rhomboid proteases)

(biochemistry) Any of several enzymes that cleave proteins within biological membranes allowing release of effector domains from the membrane


acrosin

(biochemistry) A proteolytic enzyme, found in the acrosome of spermatozoa, that enables penetration of the egg.


haloenzyme

(biochemistry) Any enzyme that is activated by a cofactor.


apoenzyme

(biochemistry) An inactive haloenzyme lacking a cofactor.

apoentsyymi

an inactive haloenzyme lacking a cofactor


catalytic activity

catalytic activity (countable and uncountable, plural catalytic activities)

(chemistry) The increase in rate of a chemical reaction caused by the presence of a catalyst.


flavorubredoxin

(biochemistry) A flavoprotein that reduces nitric oxide (NO) to nitrous oxide (N₂O) under anaerobic conditions. It is an oxygen sensitive nitric oxide reductase that contributes to resistance to nitrosative killing by macrophages.


subtilase

subtilase (countable and uncountable, plural subtilases)

(biochemistry) A serine protease similar to subtilisin


subtilisin

subtilisin (countable and uncountable, plural subtilisins)

(biochemistry) A protease produced by soil bacteria of the genus Bacillus.


chymosin

chymosin (countable and uncountable, plural chymosins)

(biochemistry) The proteolytic enzyme rennin


Fromase

From French fromage (“cheese”) + -ase, coined as a trademark.

(biochemistry) A protease produced by the soil fungus Rhizomucor miehei, used as a vegetarian alternative to chymosin in the manufacture of some cheeses.


rennin

rennin (countable and uncountable, plural rennins)

(biochemistry) A proteolytic enzyme, obtained from the gastric juice of the abomasum of calves, used to coagulate milk and make cheese.


cyclase

(biochemistry) Any enzyme that catalyzes the cyclization of a compound


polygalacturonase

(biochemistry) Any enzyme that catalyses the hydrolysis of polymeric galacturonic acids and similar carbohydrates.


polypeptidase

(biochemistry) Any enzyme which catalyzes the hydrolysis of a polypeptide


polynucleotidase

(biochemistry) Any of several enzymes which catalyze the hydrolysis of polynucleotides to form oligonucleotides and eventually simple nucleotides.


cyclooxygenase

(biochemistry) Any of several enzymes that catalyze a cyclooxygenation reaction, but especially the conversion of arachidonic acid into prostaglandins (prostanoids); their inhibition is the mode of action of the NSAIDs aspirin and ibuprofen.


glycosyltransferase

(biochemistry) Any of several enzymes that catalyze the transfer of glycosyl groups between biological molecules, especially during the biosynthesis of glycoproteins


luciferase

Aptly enough, glowworms light up their underworld with a pair of chemicals that have a satanic etymology—luciferins and luciferases, after the Latin for “light bringer.”

2017 October 6, Ed Yong, “The Most Beautiful Death Trap”, in The Atlantic:

The novel coronavirus vaccine manufactured by Moderna does not contain luciferin, an organic compound involved in bioluminescence, or the enzyme luciferase, contrary to claims on social media.

2021 May 6, “Fact Check-Moderna’s COVID-19 vaccine does not contain luciferin or luciferase”, in Reuters:

(biochemistry) Any one of a group of enzymes that produce bioluminescence by oxidizing luciferin.

luciferazo

biochemistry: any one of a group of enzymes that produce bioluminescence by oxidizing luciferin


deacetylase

(biochemistry) Any of several classes of enzyme that remove acetyl groups from proteins


histone deacetylase

histone deacetylase (plural histone deacetylases)

(biochemistry) Any of a class of enzymes that remove acetyl groups from lysine amino acids in proteins, especially the histone proteins of the nucleus


ligase

The glue is an enzyme called ligase, which stitches together loose sentences of DNA whenever it comes across them.

(biochemistry) Any of a group of enzymes that catalyze the binding of two molecules; synthetase.


DNase

(biochemistry) Abbreviation of deoxyribonuclease.


deoxyribonuclease

(biochemistry, genetics) Any of several enzymes that catalyze the cleavage of DNA.


topoisomerase

/ˌtɒpəʊˌaɪˈsɒməˌɹeɪs/

/ˌtɑpoʊˌaɪˈsɑməˌɹeɪs/

(biochemistry) Any of several enzymes that affect the topology of DNA, especially ones that relax supercoiling.


dismutase

(biochemistry) Any of several enzymes that catalyze dismutation reactions.

Dismutase

any of several enzymes that catalyze dismutation reactions


dehydrogenase

This led to a search in the filtrate for a dehydrogenase which should activate lactate in preference to the other three substances.

1928, Marjory Stephenson, “On lactic dehydrogenase: A cell-free enzyme preparation obtained from bacteria”, in Biochemical Journal:

(biochemistry) Any of several enzymes that catalyze the removal of hydrogen (a proton) from biological compounds.


aromatase

aromatase (countable and uncountable, plural aromatases)

/əˈɹoʊ̯məteɪ̯s/

/əˈɹoʊ̯məteɪ̯z/

(biochemistry) An enzyme responsible for aromatization of androgen hormones into estrogens.


galactosidase

(biochemistry) Any of several enzymes that catalyze the hydrolysis of a galactoside


methylase

(biochemistry) Any of several enzymes that catalyze methylation, especially of nucleic acids


collision theory

collision theory (plural collision theories)

(physical chemistry) Any theory that relates collisions among particles to reaction rate; reaction rate depends on such factors as concentration, surface area, temperature, stirring, and the presence of either a catalyst or an inhibitor.


cyclo-oxygenase

(biochemistry) Alternative spelling of cyclooxygenase


exoribonuclease

(biochemistry) A ribonuclease that catalyzes the exonucleolytic cleavage of nucleotides from a ribonucleotide chain.


cathepsin

Borrowed from German Kathepsin, from Ancient Greek καθέψω (kathépsō), from κατά (katá, “down”) + ἕψω (hépsō, “boil”).

affix

Grassmann and Dyckerhoff (1930) showed that cysteine and cyanide inhibited the action of ereptic aminopolyase, while they accelerated the action of proteases such as cathepsin.

1931, A Pirie, BE Holmes, “The cause of inactivation of the Rous sarcoma filtrate during incubation”, in British journal of experimental pathology:

(biochemistry) Any of a family of proteases primarily active within lysosomes.


helicase

(biochemistry) An enzyme required for DNA unwinding.


caspase

Short for cysteine-aspartic acid protease.

(biochemistry) Any of several intracellular proteolytic enzymes that mediate apoptosis and pyroptosis.


methyltransferase

(biochemistry) Any enzyme that catalyzes transmethylation


serum glutamic oxaloacetic transaminase

en-noun

serum glutamic oxaloacetic transaminase (uncountable)

(biochemistry) An enzyme found in heart and liver tissues.


aspartate transaminase

(biochemistry) An enzyme that catalyzes the transfer of amino groups between biologically active compounds, especially between aspartic acid and glutamic acid


sulphiredoxin

(biochemistry) Any of a family of antioxidant enzymes that work with peroxiredoxin


peroxiredoxin

(biochemistry) Any of a family of antioxidant enzymes that mediate signal transduction in mammalian cells.


aminoacyl tRNA synthetase

aminoacyl tRNA synthetase (plural aminoacyl tRNA synthetases)

(biochemistry) Any of a group of enzymes that catalyze the linkage of a tRNA molecule to an appropriate amino acid during protein synthesis.

Aminoacyl-tRNA-Synthetase

any of a group of enzymes that catalyze the linkage of a tRNA molecule to an appropriate amino acid during protein synthesis


deaminase

(biochemistry) An enzyme that catalyses deamination


hydrogenase

From hydrogen + -ase, after dehydrogenase.

It is clear from the experiments cited already that we are dealing with a bacterial enzyme comparable with the dehydrogenases, the substrate in this case being molecular hydrogen. […] In order to conform with the accepted terminology we suggest that this enzyme be called "hydrogenase."

1930, Marjory Stephenson, LH Stickland, “Hydrogenase: a bacterial enzyme activating molecular hydrogen”, in Biochemical Journal:

(biochemistry) Any enzyme that catalyzes the reduction of a substrate by the reversible oxidation of hydrogen.


ceramidase

(biochemistry) An enzyme that separates the two parts of ceramide.


ornithine transcarbamylase

(biochemistry) An enzyme that catalyzes the reaction between carbamoyl phosphate and ornithine to form citrulline and phosphate.


ornithine carbamoyltransferase

ornithine transcarbamylase
ornithine transcarbamylase

(biochemistry) The enzyme ornithine transcarbamylase.


cellulase

(biochemistry) An enzyme that catalyzes the cellulolysis (or hydrolysis) of cellulose.


deformylase

(biochemistry) An enzyme that removes the formyl group from some amino acids (especially from methionine).


aminopeptidase

(biochemistry) Any of several enzymes that catalyze the hydrolysis of the peptide bond of the terminal amino acid at the amino end of a polypeptide or protein

aminopeptydaza

any of several enzymes that catalyze the hydrolysis of the peptide bond of the terminal amino acid


proteinase

Thrombin is another endogenous serine proteinase that can be released from fibrin clot following gingival tissue injury or inflammation.

2017, E. S. Rovai, M. Holzhausen, “The Role of Proteinase-Activated Receptors 1 and 2 in the Regulation of Periodontal Tissue Metabolism and Disease”, in Journal of immunology research, →DOI:


metalloproteinase

(biochemistry) Any of several proteinases that have a metal atom (often zinc) at their active centre


sphingomyelinase

(biochemistry) Any of several enzymes that catalyzes the cleavage of phosphodiester bonds in sphingomyelin


gelatinase

(biochemistry) Any of several proteolytic enzymes that catalyze the hydrolysis of gelatin.


galactosyltransferase

The gene is the recipe for galactosyl transferase, an enzyme, i.e. a protein with the ability to catalyse a chemical reaction.

1999, Matt Ridley, Genome, Harper Perennial, published 2004, page 138:

(biochemistry) Any glycosyltransferase enzyme that catalyzes the transfer of galactose entities.


calpain

(biochemistry) Any of a family of enzymes that regulate calcium in the body.


sulfotransferase

(biochemistry) Any transferase enzyme that catalyses the transfer of sulfate groups


phosphodiesterase

(biochemistry) Any of a family of enzymes that catalyze the cleavage of phosphodiester links in nucleic acids.


autocatalysed

(chemistry) Describing the products of an autocatalysis reaction


acetylglucosaminyltransferase

(biochemistry) An enzyme that adds acetylglucosamine to heptose residues of bacterial cell walls


cholinesterase

The little tablets she has to take inhibit cholinesterase, an enzyme that breaks down the neurotransmitter acetylcholine.

2020, Avni Doshi, Burnt Sugar, Hamish Hamilton, page 11:

(biochemistry) An enzyme that catalyzes the hydrolysis of choline-based esters (acetylcholine or butyrylcholine).


streptokinase

(biochemistry, pharmacology) An enzyme produced by some streptococci which is involved in breaking down red blood cells by activating plasminogen to produce plasmin. It is used to treat blood clots and inflammation.


adenyltransferase

(biochemistry) Any transferase that catalyzes the transfer of phosphate groups from or to adenyl groups in nucleic acids


lactamase

(biochemistry) Any enzyme that catalyzes the opening of a lactam ring, especially one that deactivates a lactam-containing antibiotic


monooxygenase

(biochemistry) Any oxygenase enzyme that catalyzes the incorporation of a single atom of molecular oxygen into a substrate, the other atom being reduced to water; active in the metabolism of many foreign compounds


dehydratase

(biochemistry) Any enzyme that catalyzes the removal of the elements of water from a compound, often leaving a double bond.


hydratase

(biochemistry) Any enzyme that catalyzes the addition or removal of the elements of water; a hydrase


transpeptidase

(biochemistry) Any enzyme that catalyzes the transfer of an amino or peptide group from one molecule to another


esterase

(biochemistry) Any enzyme that catalyzes the hydrolysis of an ester


peptidase

(biochemistry) Any enzyme that catalyzes the hydrolysis of peptides into amino acids; a protease.


hydroxylase

(biochemistry) Any of several enzymes that catalyze the oxidation of compounds by the introduction of hydroxyl groups.


carboxylase

(biochemistry) Any enzyme that catalyzes either a carboxylation or decarboxylation reaction.

羧化酶

any enzyme that catalyzes either a carboxylation or decarboxylation reaction


elongase

(biochemistry) Any enzyme that catalyzes the elongation of an aliphatic chain, but especially one that elongates a fatty acid


desaturase

(biochemistry) Any enzyme that catalyzes the conversion of single to double bonds, especially in the production of essential fatty acids.


deadenylase

(biochemistry) Any enzyme that catalyzes a deadenylation reaction


acyltransferase

/ˌeɪsʌɪlˈtɹɑːnzfəɹeɪz/

(biochemistry) Any of several transferase enzymes that catalyze the transfer of acyl groups between lipids.

asyylitransferaasi

any of several enzymes that catalyse the transfer of acyl groups between lipids


lipoxygenase

polyunsaturated fatty acid
polyunsaturated fatty acid

(biochemistry) Any of a class of enzymes that catalyse the oxidation of polyunsaturated fatty acids


xylosyltransferase

(biochemistry) Any glycosyltransferase that catalyzes the transfer of xylose.


pentosyltransferase

(biochemistry) Any glycosyltransferase that catalyzes the transfer of a pentose


silicatein

silicatein (countable and uncountable, plural silicateins)

(biochemistry) An enzyme used by sponges to capture silicate and build silica nanostructures


vanadium bromoperoxidase

(biochemistry) A haloperoxidase, used by some algae to synthesize halogen compounds, that has a requirement for the element vanadium


haloperoxidase

(biochemistry) Any of a class of enzymes that oxidize organic halogen compounds; they are hemoproteins or similar


autopoisoning

(chemistry) The inhibition of a catalyst by the product of the catalysis.


catalymetric

(chemistry) Describing an analysis that involves a catalyst; especially a titration in which the end-point is detected by a sudden change in the rate of reaction


plasmin

plasmin (countable and uncountable, plural plasmins)

(biochemistry) A proteolytic enzyme that dissolves the fibrin in blood clots.


lyase

(biochemistry) Any of many classes of enzyme that catalyze the breaking of a specific form of bond


multienzyme

(biochemistry) Any protein having two or more catalytic functions


cuproenzyme

(biochemistry) Any metalloenzyme that contains one or more copper atoms


tryptophan synthase

(biochemistry) An enzyme found in plants and bacteria, but not in animals, which catalyses the final step in the biosynthesis of tryptophan.


integrase

(biochemistry) Any enzyme that integrates viral DNA into that of an infected cell


primase

(biochemistry) An RNA polymerase involved in the initiation of DNA synthesis.


convertase

(biochemistry) Any of several enzymes that convert a compound into smaller, biologically-active compounds


furin

furin (countable and uncountable, plural furins)

(biochemistry) A protease found in certain animal cells


glycosylase

(biochemistry) Any enzyme that splits a glycoside into a glycone and aglycone


activase

(genetics, biochemistry) Any enzyme that activates a gene


conjugase

pteroylglutamic acid
pteroylglutamic acid

(biochemistry) Any of a group of enzymes that promote the hydrolysis of folic acid conjugates and the production of glutamic acid and pteroylglutamic acid


glucuronidase

(biochemistry) Any enzyme that catalyzes the hydrolysis of a glucuronide; a glycuronidase


phosphoglucomutase

(biochemistry) Any enzyme that catalyzes the interconversion of isomers of glucose phosphates


allozyme

[…] suggesting the two are different stages of the same species. The identity of the two species is further suggested by allozyme analysis […]

1997, “Hydrothermal Vent Fauna”, in Advances in Marine Biology: The Biogeography of the Oceans, page 111:

(genetics, biochemistry) Either form of an enzyme specified by an allelic gene.

allozima

either form of an enzyme specified by an allelic gene


recombinase

(biochemistry) Any of several enzymes that mediate recombination of DNA fragments among chromosomes


phenoloxidase

In one widely accepted model, the oxidation of catechols (o-diphenols) to o-quinones by cuticular phenoloxidase takes place and then these quinones diffuse into the cuticle […]

1991, Gregory W. Narr, Nicholas Cohen, Phylogenesis of Immune Functions, →ISBN, page 48:

(biochemistry) An enzyme which catalyzes phenol oxidation, and which is often involved in melanization processes

fenoloxidase

an enzyme which catalyzes phenol oxidation


autokinase

Shortened from "autophosphorylation-dependent protein kinase."

an autokinase domain

(biochemistry) A protein kinase or domain which promotes autophosphorylation


autophosphatase

an autophosphatase reaction

In addition, KaiC, which can act both as an autokinase and an autophosphatase, undergoes robust daily phosphorylation cycles that depend on its physical interactions with KaiA and KaiB.

2006, U. Schibler, “Circadian time keeping”, in Kalsbeek et al., editors, Hypothalamic Integration of Energy Metabolism, →ISBN, page 273:

(biochemistry, noun adjunct) A phosphatase that dephosphorylates itself


ferroxidase

(biochemistry) Any enzyme that catalyses the oxidation of iron ions


carboxykinase

a pyruvate carboxykinase

(biochemistry) A kinase that also catalyzes decarboxylation


bisphosphatase

an inositol bisphosphatase

(biochemistry) An enzyme that converts a bisphosphate to a monophosphate compound by dephosphorylation


nitroreductase

(biochemistry) An enzyme that catalyzes the reduction of nitro groups


dynein

From dyne + -in, from the Ancient Greek δῠ́νᾰμῐς (dúnamis, “force”).

der

(biochemistry) Any of a group of enzymes that hydrolyze ATP and thus provide motive power for motile structures such as microtubules.


pyrophosphatase

(biochemistry) An acid anhydride hydrolase that acts upon diphosphate bonds


phosphorylase

(biochemistry) Any enzyme that catalyzes the production of glucose phosphate from glycogen and inorganic phosphate


endoribonuclease

(biochemistry) Any ribonuclease that is an endonuclease


unfoldase

Hsp70 is also known to have a protein unfoldase activity that is important for translocation of proteins across the membranes of organelles; […]

1993, Malcolm G. Parker, Steroid Hormone Action, →ISBN, page 71:

(biochemistry) An enzyme that catalyzes protein unfolding


acetylase

(biochemistry) Any enzyme that catalyzes acetylation or deacetylation


calcineurin

en-noun

calcineurin (countable and uncountable, plural calcineurins)

… the European Dermatology Forum consensus group has recently published guidelines favoring the use of topical calcineurin inhibitors as a first-line option for face and neck on a bidaily [twice-daily] basis …

2016 June 5, Khaled Ezzedine, Nanette Silverberg, “A Practical Approach to the Diagnosis and Treatment of Vitiligo in Children”, in Pediatrics, volume 138, number 1, →DOI, page e20154126:

(biochemistry) A protein phosphatase that stimulates the growth and differentiation of T cells


collagenase

(biochemistry) An enzyme that breaks the peptide bonds in collagen.


granzyme

(biochemistry) Any of a series of serine proteases that are released by cytoplasmic granules within natural killer cells


myrosin

An enzyme found in mustard plants, which hydrolyzes sinigrin.


dehalogenase

(biochemistry) Any enzyme that catalyzes the removal of a halogen atom from an organic halide


demethylase

(biochemistry) Any enzyme that catalyzes the removal of a methyl group from a compound


decarboxylase

(biochemistry) Any enzyme that catalyzes the hydrolysis of a carboxyl group, effectively removing carbon dioxide from a compound.


deubiquitinase

(biochemistry) Any enzyme that catalyzes a deubiquitination reaction


dikinase

(biochemistry) Any kinase that transfers two phosphate groups


renin

renin (countable and uncountable, plural renins)

(biochemistry) A circulating enzyme released by mammalian kidneys that converts angiotensinogen to angiotensin I. Due to its activity which ultimately leads to the formation of angiotensin II and aldosterone, this hormone plays a role in maintaining blood pressure.


glycosidase

(biochemistry) Any enzyme that catalyses the hydrolysis of a glycoside


exoglycosidase

(biochemistry) Any glycosidase enzyme that hydrolyses a terminal glycosidic bond


glucosyltransferase

(biochemistry) Any enzyme that catalyzes the transfer of a glucosyl group


glycosylhydrolase

(biochemistry) Any of many enzymes that hydrolyse glycosides


glucohydrolase

(biochemistry) Any of several enzymes that catalyse the hydrolysis of sugars containing a glucose residue


hyaluronidase

(biochemistry) Any enzyme that catalyses the hydrolysis of hyaluronic acid


carboxyl methyltransferase

carboxyl methyltransferase (plural carboxyl methyltransferases)

(biochemistry) Any enzyme that catalyzes the methylation of a carboxyl group


myrosinase

From μύρον (múron, “myrrh”) + σίναπι (sínapi, “mustard”) (according to German Wikipedia).

(biochemistry) Any of several defense-related enzymes, in plants such as mustard, that hydrolyze glycosides, thus releasing potentially toxic substances.


nickase

(biochemistry) Any enzyme that causes nicks (breaks in one strand) of nucleic acid, allowing it to unwind


nucleotidyltransferase

(biochemistry) Any enzyme that transfers nucleotide residues


palmitoyltransferase

(biochemistry) Any transferase involved in palmitoylation


phosphotransferase

(biochemistry) Any enzyme that catalyzes the transfer of a phosphate group (phosphorylation)


phytase

(biochemistry) A phosphatase, present in cereals, that catalyzes the hydrolysis of phytic acid into inositol and phosphoric acid.


endoglycosidase

(biochemistry) Any enzyme that releases oligosaccharides from glycoproteins or glycolipids


phosphoribosyltransferase

(biochemistry) Any transferase that transfers a phosphoribosyl group


pseudokinase

(biochemistry) A protein containing a catalytically inactive kinase domain.


beta-lactamase

(biochemistry) An enzyme produced by certain bacteria, responsible for their resistance to beta-lactam antibiotics such as penicillin.


amyloglucosidase

(biochemistry) A form of amylase used industrially to produce sugars from starches

amiloglucosidasi

a form of amylase used industrially to produce sugars from starches


carbonic anhydrase

carbonic anhydrase (plural carbonic anhydrases)

(biochemistry) Any of a group of enzymes that catalyze the conversion of carbon dioxide to bicarbonate


phosphofructokinase

(biochemistry) Any of a group of kinase enzymes that convert fructose phosphates to biphosphates


hexokinase

(biochemistry) Any enzyme that catalyses the phosphorylation of a hexose


glucanase

(biochemistry) Any enzyme that breaks down a glucan


glucoamylase

(biochemistry) Any enzyme that hydrolyzes the glucoside bond in starches and dextrins


glucosidase

(biochemistry) Any enzyme that hydrolyses glucosides


xylanase

(biochemistry) Any of various enzymes that catalyze the hydrolysis of xylan


pectinase

(biochemistry) Any protease that break down pectin.


ligninase

(biochemistry) Any of various enzymes that break down lignin


epimerase

(biochemistry) Any enzyme that catalyzes the stereochemical inversion of the configuration about an asymmetric carbon atom in a substrate having more than one center of asymmetry.


transglutaminase

(biochemistry) Any of a family of enzymes that catalyze the reaction of lysine and glutamine groups in proteins and have a function in blood coagulation.


desulfurase

(biochemistry) Any enzyme that catalyzes the removal of sulfur (or the elements of hydrogen sulfide) from a molecule


dynamin

dynamin (countable and uncountable, plural dynamins)

(biochemistry) A hydrolase responsible for endocytosis in eukaryotic cells


glycanase

(biochemistry) Any enzyme that catalyzes the hydrolysis of a glycan


isopeptidase

(biochemistry) Any enzyme that catalyzes the cleavage of an isopeptide bond, especially that between the terminal diglycine attached to ubiquitin


mannosyltransferase

(biochemistry) Any enzyme that catalyzes the transfer of a mannose group between molecules


oligosaccharyltransferase

(biochemistry) Any enzyme that catalyzes the transfer of an oligosaccharide


mannosidase

(biochemistry) Any enzyme that catalyses the hydrolysis of mannose glycosides.


rhodanese

(biochemistry) A mitochondrial enzyme that catalyzes the conversion of cyanide to thiocyanate


sulfurtransferase

(biochemistry) Any enzyme that catalyzes the transfer of sulfur-containing groups between molecules


flippase

(biochemistry) Any enzyme located in the membrane responsible for aiding the movement of phospholipid molecules between the two leaflets that compose a cell's membrane (transverse diffusion).


enterokinase

(biochemistry) An enzyme, secreted by the upper intestinal mucosa, that catalyzes the activation of trypsinogen by converting it to trypsin


macerozyme

(biochemistry) An enzyme used experimentally to digest cell walls prior to organelle isolation.


lyticase

(biochemistry) A complex of endoglucanase and protease catalyzes yeast cell lysis


endoglucanase

(biochemistry) Any glucanase/cellulase that is active within the organism that produced it.


pectolyase

(biochemistry) Any of a class of enzymes that degrade pectin


pyrophosphohydrolase

(biochemistry) Any enzyme that catalyzes the hydrolysis of pyrophosphate


glutaminase

(biochemistry) Any enzyme that catalyzes the conversion of glutamine to glutamic acid and ammonia


polyamine oxidase

polyamine oxidase (plural polyamine oxidases)

(biochemistry) Any enzyme that catalyzes the oxidation of a polyamine, but especially of acetylspermine to acetylspermidine and aminopropanal


resolvase

(biochemistry) Any of a group of enzymes that repress transposases


kallikrein

kallikrein (countable and uncountable, plural kallikreins)

From Ancient Greek κᾰλλίκρεᾰς (kallíkreas, “sweetbread, pancreas”) + -in, from κᾰλλί- (kallí-, “beautiful”) + κρέᾰς (kréas, “flesh, meat”).

af

(biochemistry) A hypotensive protease that liberates kinins from blood plasma proteins and is used therapeutically for vasodilation.


creatine kinase

en-noun

creatine kinase (plural creatine kinases)

adenosine triphosphate
adenosine triphosphate

adenosine diphosphate
adenosine diphosphate

(biochemistry) An enzyme that catalyzes the phosphorylation of creatine and uses adenosine triphosphate (ATP) to create phosphocreatine and adenosine diphosphate (ADP).


sialyltransferase

(biochemistry) Any of a class of enzymes that catalyze the transfer of sialic acid moieties (especially to certain glycolipids)


lipoprotein lipase

lipoprotein lipase (plural lipoprotein lipases)

(biochemistry) Any enzyme that catalyses the hydrolysis of a lipoprotein


aldolase

(biochemistry) An enzyme, present in some tissue, that catalyses the conversion of phosphates of fructose to those of glyceraldehyde and dihydroxyacetone


diphosphatase

(biochemistry, especially in combination) Any enzyme that catalyses the hydrolysis of the diphosphate of a specific nucleotide or other biochemical compound


trimethyltransferase

(biochemistry) An enzyme that catalyses the transfer of three methyl groups


cataloreactant

(chemistry) A catalytic reactant that is regenerated at the end of a reaction


amylopsin

(biochemistry) A pancreatic form of amylase.


pseudocholinesterase

pseudocholinesterase (countable and uncountable, plural pseudocholinesterases)

(biochemistry) One of the two types of cholinesterase (the other being acetylcholinesterase), found primarily in the liver where it hydrolyses butyrylcholine.


racemase

(biochemistry) Any enzyme that catalyzes the stereochemical inversion of the configuration about an asymmetric carbon atom in a substrate having only one center of asymmetry.


formamidase

(biochemistry) An enzyme that catalyses the hydrolysis of formylkynurenine to kynurenine and formate during the metabolism of tryptophan


formyltransferase

(biochemistry) Any transferase that catalyses the transfer of a formyl group


gyrase

gyrase (countable and uncountable, plural gyrases)

(biochemistry) An enzyme that supercoils DNA.


aconitase

aconitase (countable and uncountable, plural aconitases)

The enzyme system bringing about the reversible hydration of cisaconitic acid has been shown to be different from fumarase and termed "aconitase".

1939 June 1, William Arthur Johnson, “Aconitase”, in Biochemical Journal, volume 33, number 6, page 1046:

These are: aconitase, isocitric dehydrogenase, alpha-ketoglutaric dehydrogenase, succinic dehydrogenase, fumarase, malic dehydrogenase, DPHN-oxidase, and cytochrome oxidase.

1959, Virginia Commission of Fisheries, Report of the Commission of Fisheries of Virginia, page 54:

The best-characterized member of iron-sulfur isomerases is mitochondrial aconitase.

2000, Louis J. Ignarro, Nitric Oxide: Biology and Pathobiology, page 301:

tricarboxylic acid cycle
tricarboxylic acid cycle

(biochemistry) Aconitate hydratase, an enzyme that catalyses the stereospecific isomerization of citrate to isocitrate via cis-aconitate in the tricarboxylic acid cycle.


aspartylglucosaminidase

A human gene and amidohydrolase enzyme involved in the catabolism of N-linked oligosaccharides of glycoproteins.


protoporphyrinogen oxidase

protoporphyrinogen IX
protoporphyrinogen IX

(biochemistry) An enzyme responsible for the seventh step in heme production, removing hydrogen atoms from protoporphyrinogen IX to form protoporphyrin IX.


ferrochelatase

ferrochelatase (countable and uncountable, plural ferrochelatases)

(biochemistry) An enzyme, localized to the mitochondrion, that catalyses the terminal (eighth) step in the biosynthesis of heme, converting protoporphyrin IX into heme


apyrase

(biochemistry) Any of a family of enzymes that catalyze the hydrolysis of ATP, releasing phosphate and available energy

apirase

any of a family of enzymes that catalyze the hydrolysis of ATP


chondroitinase

Animals that were given the treatment produced an enzyme called chondroitinase which breaks down scar tissue and allows the broken nerves to reconnect with each other.

(biochemistry) Any of a class of enzymes that catalyse the hydrolysis of chondroitin sulfate proteoglycans.


glycohydrolase

glycohydrolase (countable and uncountable, plural glycohydrolases)

(biochemistry) Any of many enzymes that catalyse the hydrolysis of glycosides


thermolysin

thermolysin (countable and uncountable, plural thermolysins)

(biochemistry) A thermostable neutral metalloproteinase enzyme produced by the gram-positive bacterium Bacillus thermoproteolyticus.


deiodinase

deiodinase (countable and uncountable, plural deiodinases)

(biochemistry) iodide peroxidase, an enzyme that is involved in the activation or deactivation of thyroid hormones


arylesterase

(biochemistry) Any enzyme that catalyzes the hydrolysis of an aryl ester

arilesterase

any enzyme that catalyzes the hydrolysis of an aryl ester


pontin

(biochemistry) An ATPase that is a component of telomerase


pyrophosphorylase

(biochemistry) Any pyrophosphate transferase


sulfiredoxin

sulfiredoxin (countable and uncountable, plural sulfiredoxins)

(biochemistry) An oxidoreductase enzyme involved in antioxidant metabolism


dispase

(biochemistry) A protease that cleaves fibronectin and collagen


immunophilin

(biochemistry) Any of a class of isomerases active in the immune system.


flavoenzyme

(biochemistry) Any oxidoreductase that requires FAD (flavin adenine dinucleotide) as a prosthetic group that functions in electron transfers


asparaginase

asparaginase (countable and uncountable, plural asparaginases)

(biochemistry) An enzyme that catalyzes the hydrolysis of asparagine to aspartic acid, used in chemotherapy.

asparaginaza

an enzyme that catalyzes the hydrolysis of asparagine to aspartic acid


invertin

(obsolete, biochemistry) Any enzyme that converts a sugar to an invert sugar; saccharase.


protein kinase

These findings, together with previous evidence that heparin stimulates Tau phosphorylation by protein kinases, have been used to argue that sulfated glycosaminoglycans may be a critical factor in the formation of the neurofibrillary tangles.

2009, Ajit Varki with Hudson H. Freeze, “Glycans in Acquired Human Diseases”, in Varki, A., et al., editor, Essentials of Glycobiology, 2nd edition, CSH Press, →ISBN, retrieved 2009-12-05:

(biochemistry) a kinase whose substrate is a protein


phosphohydrolase

(biochemistry) Any enzyme that hydrolyzes an organic phosphate group


hexosyltransferase

(biochemistry) Any glycosyltransferase that catalyzes the transfer of a hexose


HGPRT

HGPRT (countable and uncountable, plural HGPRTs)

(biochemistry) Initialism of hypoxanthine-guanine phosphoribosyltransferase


pectinesterase

pectinesterase (countable and uncountable, plural pectinesterases)

(biochemistry) A ubiquitous cell-wall-associated enzyme that presents several isoforms that facilitate plant cell wall modification and subsequent breakdown, found in all higher plants as well as in some bacteria and fungi


thromboplastin

(biochemistry) A protease that converts prothrombin to thrombin during the clotting of blood.


deacetyltransferase

(biochemistry) Any of a class of enzymes that remove acetyl groups, especially from a lysine residue of a histone


aminomethyltransferase

(biochemistry) Any enzyme that catalyzes the transfer of an aminomethyl group

aminometyylitransferaasi

any enzyme that catalyzes the transfer of an aminomethyl group


alkyllysinase

(biochemistry) Any of a family of enzymes that catalyses the removal of alkyl (especially methyl) groups from lysine


deiminase

(biochemistry) Any hydrolase that hydrolyses imines


ribosylhydrolase

(biochemistry) Any of a class of hydrolase enzymes that remove ribose moieties


succinyltransferase

(biochemistry) Any transferase enzyme that transfers succinyl groups


sortase

(biochemistry) Any of a group of prokaryotic enzymes that form pili through cleavage and isopeptide bonding of precursors


enolase

(biochemistry) A metalloenzyme responsible for the catalysis of phosphoglycerate to phosphoenolpyruvate during glycolysis


staphylokinase

(biochemistry) A kinase, from Staphylococcus bacteria, that activates plasminogen to form plasmin


stromelysin

(biochemistry) Any of a family of metalloproteinases that cleave extracellular matrix proteins.


exopolyphosphatase

(biochemistry) Any of a class of exocellular phosphohydrolases that hydrolyse polyphosphate


molybdoenzyme

In the present investigation evidence is presented indicating that the CO₂ reductase from Cl. pasteurianum most probably is a molybdoenzyme: It is synthesized only in the presence of molybdenum and is inactivated by low concentrations of cyanide, as are other molybdoenzymes.

1973 December 15, “CO₂ reductase from Clostridium pasteurianum: Molybdenum dependence of synthesis and inactivation by cyanide”, in FEBS Letters, volume 38, number 1, page 45:

Many organisms possessed several molybdoenzyme families and several subfamilies within these families. In archaea, as in bacteria, DMSOR was also the most frequently used molybdoenzyme family (>95% of Mo-utilizing organisms).

2016, Valeria Culotta, Metals in Cells, page 26:

While eukaryotes produce only a limited number of enzymes belonging to the sulfite oxidase and xanthine oxidase families (for instance, four molybdoenzymes are present in humans), enzymes of all three families are present in prokaryotes with enzymes of the DMSO reductase family being predominant.

2016, Russ Hille, Molybdenum and Tungsten Enzymes, page 118:

(biochemistry) Any metalloenzyme in which the active metal is molybdenum.


nucleotidase

(biochemistry) Any enzyme that catalyzes the hydrolysis of a nucleotide to a nucleoside and phosphate


azoreductase

(biochemistry) Any of a family of enzymes that catalyze the conversion of diamines to azo compounds


metallocarboxypeptidase

(biochemistry) Any metalloproteinase exopeptidase


sialidase

(biochemistry) Any of a group of mammalian lysosomal neuraminidases.


fucosyltransferase

(biochemistry) A transferase that catalyzes the transfer of fucose sugars


alkaline phosphatase

alkaline phosphatase (plural alkaline phosphatases)

(biochemistry) Any of a group of phosphatases that are most active in an alkaline environment


fucosidase

(biochemistry) Any enzyme that catalyzes the hydrolysis of a fucoside


hexosaminidase

(biochemistry) Any enzyme that catalyzes the hydrolysis of terminal hexosamine residues in hexosaminides


cocatalyst

(chemistry) Either of a pair of cooperative catalysts that improve each other's catalytic activity.


nanocatalysis

catalysis using products of nanotechnology


supercatalyst

(chemistry, biochemistry) Any catalyst (especially an enzyme) that catalyzes a large range of reactions


barnase

barnase (countable and uncountable, plural barnases)

(biochemistry) A small protein, produced by the bacterium Bacillus amyloliquefaciens and others, that has ribonuclease activity


emulsin

(dated, biochemistry) A mixture of enzymes, extracted from bitter almonds, once used to hydrolyze glucosides.


mannokinase

(biochemistry) A kinase, ATP:D-mannose 6-phosphotransferase


chitinase

(biochemistry) Any enzyme that hydrolyzes chitin.


arabinofuranosidase

(biochemistry) Any enzyme that catalyzes the hydrolysis of an arabinofuranoside

arabinofuranosidase

any enzyme that catalyzes the hydrolysis of an arabinofuranoside


xylosidase

(biochemistry) Any enzyme that catalyses the hydrolysis of a xyloside.


transglycosidase

(biochemistry) Any enzyme that catalyzes the transfer of a sugar moiety between different glycosides


mannanase

(biochemistry) Any enzyme that catalyzes the hydrolysis of mannans


diaphorase

(biochemistry) Any of a group of flavoprotein enzymes that catalyze the reduction of cytochrome and other similar compounds


adenylyltransferase

(biochemistry) Any of a group of enzymes that catalyze the transfer of adenylyl groups


cefotaximase

(biochemistry) A penicillinase specific to cefotaxime


chymase

(biochemistry) Any of a family of serine proteases present in mast cells


dimethyltransferase

(biochemistry) Any transferase enzyme that catalyzes the transfer of two methyl groups


hephaestin

From Hephaestus + -in, after the god of metalworking.

(biochemistry) An enzyme that catalyzes the conversion of iron(II) state, Fe²⁺ to iron(III) state, Fe³⁺.


insulinase

(biochemistry) Any enzyme that inactivates insulin


enamelysin

(biochemistry) A matrix metalloproteinase that is associated with the formation of dental enamel


glutaredoxin

glutaredoxin (usually uncountable, plural glutaredoxins)

(biochemistry) Any of a family of small redox enzymes that use glutathione as a cofactor.


lysophospholipase

(biochemistry) Any enzyme that catalyzes the hydrolytic removal of a fatty acid from a lysophospholipid


ketoreductase

(biochemistry) Any enzyme that catalyzes the reduction of a ketone


paraplegin

(biochemistry) A metalloprotease associated with paraplegia


arylsulfatase

(biochemistry) Any of a group of sulfatase enzymes.


ARSE

(biochemistry) Abbreviation of arylsulfatase E, an enzyme, deficiencies in which are associated with abnormalities in cartilage and bone development.


paraoxonase

(biochemistry) Any of a group of enzymes that act as antioxidants


antirepressor

(biochemistry) Any enzyme that blocks or inactivates a repressor


bromoperoxidase

(biochemistry) Any enzyme that, in the presence of hydrogen peroxide, catalyzes the bromination of a hydrocarbon


iodoperoxidase

(biochemistry) Any enzyme that, in the presence of hydrogen peroxide, catalyzes the iodination of a hydrocarbon.


abhydrolase

(biochemistry) Any of a family of hydrolases having an alpha/beta hydrolase fold


ptyalin

ptyalin (usually uncountable, plural ptyalins)

From Ancient Greek πτύαλον (ptúalon, “saliva”).

der

(biochemistry) A form of amylase found in saliva that breaks down starch into maltose and dextrin.


bromelein

(biochemistry) A proteolytic enzyme found in pineapples


autotaxin

lysophosphatidic acid
lysophosphatidic acid

(biochemistry) An ectonucleotide pyrophosphatase that catalyzes the conversion of lysophosphatidylcholine into lysophosphatidic acid


ectoenzyme

(biochemistry) Any enzyme found outside of (or on the outer surface of) a cell


acetylesterase

(biochemistry) Any enzyme that catalyzes the hydrolysis of an acetate ester.

acetyloesteraza

any enzyme that catalyses the hydrolysis of an acetate ester


tannase

(biochemistry) Any enzyme that catalyzes the hydrolysis of tannic acid to gallic acid


thrombokinase

en-noun

thrombokinase (countable and uncountable, plural thrombokinases)

(biochemistry) A proteolytic enzyme that converts prothrombin into thrombin during the clotting of blood


cutinase

(biochemistry) cutin hydrolase, an enzyme that hydrolyzes cutin


dehydropeptidase

(biochemistry) Any of a particular group of dipeptidases


Crystals of phosphoribosylaminoimidazolesuccinocarboxamide synthase (EC 6.3.2.6) from the yeast Saccharomyces cerevisiae were grown by the vapor diffusion hanging-drop technique, using ammonium sulfate as the precipitant.

1992, A. I. Grebenko, V. M. Levdikov, V. V. Barynin, W. R. Melik-Adamyan, A. N. Myasnikov, Crystallization and preliminary X-ray investigation of phosphoribosylaminoimidazolesuccinocarboxamide synthase from the yeast Saccharomyces cerevisiae:

(biochemistry) A ligase enzyme involved in purine metabolism.


monomethyltransferase

(biochemistry) Any methyltransferase that transfers a single methyl group


alkyltransferase

(biochemistry) Any transferase that transfers alkyl groups.

alkyylitransferaasi

any transferase that transfers alkyl groups


monophosphatase

(biochemistry) Any phosphatase that dephosphorylates a monophosphate


myotubularin

myotubularin (countable and uncountable, plural myotubularins)

(biochemistry) A phosphatase that dephosphorylates phosphatidylinositols


isomerohydrolase

(biochemistry) An enzyme that hydrolyzes all-trans-retinyl esters into 11-cis-retinol.


transcarbamylase

(biochemistry) Any transferase that catalyzes the transfer of a carbamyl group


acetylglucosaminidase

(biochemistry) Any enzyme that catalyzes the hydrolysis of terminal 2-acetamido-2-deoxy-beta-glucose residues in chitobiose and in glycoproteins


dihydrolase

(biochemistry) Any hydrolase that catalyzes a reaction involving two hydrolyses


glucosylase

(biochemistry) Any glycosylase that acts on a glucoside.


glucosaminidase

(biochemistry) Any enzyme that hydrolyzes chitin to produce glucosamine.


angiotensinase

(biochemistry) Any peptidase that hydrolyzes angiotensin

angiotensinase

any peptidase that hydrolyzes angiotensin


ribosyltransferase

(biochemistry) Any transferase that transfers ribosyl groups


nanocatalyst

(chemistry) A catalyst composed of nanoparticles


bromelain

(biochemistry) Either of two proteolytic enzymes, found in pineapples, that are used as meat tenderizers


steapsin

steapsin (countable and uncountable, plural steapsins)

(biochemistry) A lipase that is secreted from the pancreas to hydrolyse triglycerides to liberate the fatty acids and glycerol.


alpha-d-galactosidase

(biochemistry) Any galactosidase that only hydrolyzes the alpha-d configuration of galactosides; a deficiency of this enzyme can lead to Fabry's disease


catalyzer

(American spelling, Canadian spelling) That which catalyzes.


disaccharidase

Lactase is a disaccharidase that breaks down lactose into glucose and galactose.

(biochemistry) Any of a class of glycoside hydrolases, enzymes that break down disaccharides into monosaccharides


matrilysin

matrilysin (countable and uncountable, plural matrilysins)

(biochemistry) A matrix metalloproteinase that has a function in the development of tumours.


acylase

(biochemistry) Any enzyme that catalyses the removal of acyl groups, especially from acylated amino acids.


reductoisomerase

(biochemistry) Any enzyme that catalyzes a reaction involving both reduction and isomerization


endotransglycosylase

(biochemistry) Any transglycosylase that utilizes endogenous glycosyl donors


carboxypeptidase

(biochemistry) Any enzyme that catalyzes the hydrolysis of the terminal amino acid of a polypeptide/protein from the end that contains a free carboxyl group


abequosyltransferase

(biochemistry) A transferase that catalyzes certain reactions involving abequose


acetokinase

(biochemistry) An enzyme that catalyzes the phosphorylation of acetate as part of glycolysis


fructokinase

(biochemistry) A transferase enzyme of the liver, intestine, and kidney cortex.


acetylaminopeptidase

acetylaminopeptidase (plural not attested)

(biochemistry) Any enzyme that catalyzes the removal of acetylmethionine from the amino terminus of a protein (especially from an actin)


sucrase

(biochemistry) Any of a number of enzymes that catalyze the hydrolysis of sucrose to fructose and glucose or to their respective homopolysaccharides


acetylgalactosaminidase

(biochemistry) A glycoside hydrolase whose deficiency leads to Schindler disease/Kanzaki disease.


acetylgalactosaminyltransferase

(biochemistry) Any of a class of glycosyltransferases that participate in the biosynthesis of glycans


acetylgalactosaminylphosphotransferase

(biochemistry) A transferase present on the surface of the retina


acetylglucosaminephosphotransferase

From acetylglucosamine + phosphotransferase.

(biochemistry) A particular lysosomal transferase enzyme


acetylmannosaminyltransferase

(biochemistry) Any transferase whose substrate is a derivative of acetylmannosamine.


acetylhydrolase

(biochemistry) Any enzyme that catalyses the hydrolytic removal of an acetyl group


acetylhexosaminidase

(biochemistry) Any enzyme that catalyses the hydrolysis of terminal acetylhexosamine residues of acetylhexosaminides


acetylmuramidase

(biochemistry) An enzyme involved in the autolysis of cells


ectoATPase

(biochemistry) A transmembrane form of ATPase that catalyzes the hydrolysis of extracellular ATP.


ketoacylsynthase

(biochemistry) Any enzyme that catalyzes the biosynthesis of a keto acid


macroamylase

[To our knowledge, the simultaneous presence of macroamylase and macrolipase in the same patient has been previously reported in only four cases. Interestingly, two of those patients had celiac disease. If macroamylase and macrolipase are present, the possibility of celiac disease should be considered.]

2003, Oita T, Yamashiro A, Mizutani F, Tamura A, Sakizono K, Okada A, “[Simultaneous presence of macroamylase and macrolipase in a patient with celiac disease]”, in Rinsho Byori [Japanese Journal of Clinical Pathology], volume 51, number 10, →PMID, pages 974–977:

(biochemistry) A high-molecular weight form (that is, a macroenzyme form) of amylase that is bound as a complex to a globulin and is therefore not excreted in the urine.


naphthylamidase

(biochemistry) Any enzyme that catalyzes the hydrolysis of a naphthylamide, especially one of an amino acid


xylanohydrolase

(biochemistry) Any enzyme that catalyzes the hydrolysis of xylan


DNA ligase

(biochemistry) Any of several enzymes that repair single-stranded discontinuities in double-stranded DNA


aggrecanase

(biochemistry) Any of a group of proteolytic enzymes that act on aggrecans

agrecanase

proteolytic enzyme that acts on aggrecans


aldoketomutase

lactoylglutathione lyase
lactoylglutathione lyase

(biochemistry) The enzyme lactoylglutathione lyase.


alkylacetylglycerophosphatase

(biochemistry) One of the hydrolase enzymes that act on phosphoric monoester bonds.


allantoinase

(biochemistry) An enzyme that produces allantoate as part of purine metabolism.


aminohydrolase

(biochemistry) A hydrolase enzyme that acts upon an amino group.


aminocyclopropanecarboxylate oxidase

(biochemistry) An oxidoreductase enzyme whose products are ethylene, cyanide, dehydroascorbate, carbon dioxide, and water.


guanidinopropionase

(biochemistry) A hydrolase enzyme whose substrates are 3-guanidinopropanoate and water and whose products are beta-alanine and urea.


(biochemistry) One of the hydrolase enzymes that act on phosphoric diester bonds.


creatinase

(biochemistry) A hydrolase enzyme involved in arginine and proline metabolism.


ureohydrolase

(biochemistry) Any of various hydrolase enzymes involved in arginine/agmatine metabolism, the urea cycle, histidine degradation, and other pathways.


allantoicase

allantoicase (usually uncountable, plural allantoicases)

(biochemistry) A hydrolase enzyme that participates in purine metabolism by facilitating the utilization of purines as secondary nitrogen sources under nitrogen-limiting conditions.

alantoicase

a hydrolase enzyme that participates in purine metabolism


guanidinoacetase

(biochemistry) A hydrolase enzyme that catalyzes the reaction of guanidinoacetate and water into glycine and urea.


diguanidinobutanase

(biochemistry) A hydrolase enzyme that catalyzes the reaction of 1,4-diguanidinobutane and water into agmatine and urea.


agmatinase

(biochemistry) Any of a group of hydrolase enzymes that catalyze the reaction of agmatine and water into putrescine and urea.


dihydropyrimidinase

(biochemistry) A hydrolase enzyme, 5,6-dihydropyrimidine amidohydrolase.


azurin

azurin (countable and uncountable, plural azurins)

(biochemistry) The enzyme, arsenate reductase


urethanase

(biochemistry) A hydrolase enzyme that catalyzes the reaction of urethane and water into ethanol, carbon dioxide, and ammonia.


amidinoaspartase

(biochemistry) A hydrolase enzyme that catalyzes the reaction of N-amidino-L-aspartate and water into L-aspartate and urea.


methylguanidinase

(biochemistry) A hydrolase enzyme that catalyzes the reaction of methylguanidine and water into methylamine and urea.


guanidinobutyrase

(biochemistry) A hydrolase enzyme that catalyzes the reaction of 4-guanidinobutanoate and water into 4-aminobutanoate and urea.


adenylosuccinase

(biochemistry) An enzyme that converts adenylosuccinate to AMP and fumarate as part of the purine nucleotide cycle.


carbohydrase

(biochemistry) Any enzyme that catalyses the hydrolysis of polysaccharides into simple sugars

carbaihiodráis

any enzyme that catalyses the hydrolysis of polysaccharides into simple sugars


decarbonylase

(biochemistry) Any enzyme that catalyzes the removal of a carbonyl group, especially from an aldehyde to form an alkane


deoxynucleotidyltransferase

(biochemistry) Any of several DNA polymerases involved in gene recombination


peptidylprolyl isomerase

peptidylprolyl isomerase (plural peptidylprolyl isomerases)

(biochemistry) An enzyme that catalyzes the interconversion of the cis- and trans- forms of peptide bonds involving proline


phosphatidase

(biochemistry) Any enzyme that catalyzes the hydrolysis of a lecithin or other phosphatide to a lysolecithin or other lysophospholipid


apopain

(biochemistry) An enzyme that catalyzes the proteolytic degradation of PARP


galactosaminidase

(biochemistry) Any enzyme that hydrolyzes certain glycoproteins to produce galactosamine


isomaltase

(biochemistry) An enzyme that catalyzes the hydrolysis of isomaltose and related dextrins


adenosyltransferase

(biochemistry) Any enzyme that catalyzes the transfer of an adenosyl group, for example from ATP to an amino acid

Cob(I)yrinic acid a,c-diamide adenosyltransferase

adenosyylitransferaasi

any enzyme that catalyzes the transfer of an adenosyl group


adipsin

(biochemistry) A peptidase that is secreted by adipocytes into the bloodstream and is involved in the suppression of infection


caldecrin

(biochemistry) The peptidase chymotrypsin-C


carboxydipeptidase

(biochemistry) Any enzyme that catalyzes the hydrolysis of the terminal amino acid of a dipeptide from the end that contains a free carboxyl group


depolymerase

(biochemistry) Any enzyme that catalyzes a depolymerization reaction


diphenoloxidase

(biochemistry) Any of a class of copper-containing oxidoreductase enzymes that oxidize catechols to quinones


transesterase

(biochemistry) Any enzyme that catalyzes a transesterification reaction


relaxase

(biochemistry) A single-stranded DNA transesterase produced by some prokaryotes and viruses.


peptidyldipeptidase

(biochemistry) Any enzyme that catalyzes the cleavage of a dipeptide from the C-terminal end of an oligopeptide


cellobiohydrolase

(biochemistry) Any form of a cellulase that removes molecules of cellobiose from the ends of cellulose chains


cyclomaltodextrinase

(biochemistry) Any enzyme that catalyzes the hydrolysis of a cyclomaltodextrin to produce a linear maltodextrin


muramidase

muramidase (countable and uncountable, plural muramidases)


neopullulanase

(biochemistry) A form of pullulanase that catalyzes the hydrolysis and transglycosylation of α-1,4 and α-1,6 linkages in polysaccharides


pullulanase

(biochemistry) Any of a class of enzyme that catalyze the hydrolysis and transglycosylation of α-1,4 or α-1,6 linkages in polysaccharides such as pullulan.


phosphogluconolactonase

(biochemistry) Any enzyme that catalyzes the isomerization of phosphogluconolactone to phosphogluconate


ginsenosidase

(biochemistry) Any enzyme that catalyzes the hydrolysis of a ginsenoside glycoside


naringinase

(biochemistry) Any of a group of glucosidases that catalyze the hydrolysis of naringin glycosides (and thus reduce the bitter taste of grapefruit)


arginase

(biochemistry) An enzyme that catalyses the hydrolysis of arginine to form urea and ornithine

arginaasi

an enzyme that catalyses the hydrolysis of arginine


MPO

(biochemistry) Initialism of myeloperoxidase.


galacturonosyltransferase

(biochemistry) Any transferase that catalyzes the transfer of a galacturonic acid residue


desulfhydrase

(biochemistry) Any enzyme that catalyzes the removal of the elements of hydrogen sulfide from a compound


metallophosphatase

(biochemistry) Any metalloenzyme that functions as a phosphatase


cytase

(biochemistry) Any of a class of enzymes, found especially in cereals, that solubilize cell walls by hydrolyzing mannan, galactan, xylan and araban.


galactowaldenase

From galacto- + Walden + -ase, in reference to the Walden inversion.

(biochemistry) Synonym of phosphogalactoisomerase


phosphoglyceromutase

(biochemistry) An enzyme involved in glycolysis that catalyzes the internal transfer of a phosphate group from C-3 to C-2, resulting in the conversion of 3-phosphoglycerate to 2-phosphoglycerate through a 2,3-bisphosphoglycerate intermediate.


arabinase

(biochemistry) Any enzyme that catalyses the hydrolysis of arabinans

arabinase

any enzyme that catalyses the hydrolysis of arabinans


renalase

(biochemistry) An enzyme, released by the kidney, that breaks down adrenaline and related compounds


sedolisin

(biochemistry) Any of a group of peptidases that hydrolyze serine derivatives


hemicellulase

(biochemistry) Any enzyme that catalyzes the hydrolysis of hemicellulose


phosphoribulokinase

(biochemistry) A phosphotransferase that acts on ribulose phosphate


heparanase

(biochemistry) Any enzyme that catalyses the hydrolysis of heparan sulfate into oligosaccharides


neprilysin

neprilysin (countable and uncountable, plural neprilysins)

membrane metallo-endopeptidase
membrane metallo-endopeptidase

(biochemistry) A particular type of metalloprotease, namely membrane metallo-endopeptidase (MME)

common acute lymphoblastic leukemia antigen


monomethylase

(biochemistry) Any enzyme that catalyzes monomethylation


transcarbamoylase

(biochemistry) Any transferase that catalyzes the transfer of a carbamoyl group.


guanylylcyclase

guanylylcyclase (countable and uncountable, plural guanylylcyclases)

guanosine triphosphate
guanosine triphosphate

(biochemistry) Any enzyme that catalyses the cyclization of guanosine triphosphate


deoxygenase

(biochemistry) Any enzyme that catalyzes a deoxygenation reaction


cystathionase

(biochemistry) An enzyme that catalyzes the breakdown of cystathionine into cysteine


dechlorinase

(biochemistry) Any enzyme that catalyzes a dechlorination reaction


cycloisomerase

(biochemistry) Any enzyme that catalyzes a cycloisomerization reaction


dehydrochlorinase

(biochemistry) Any enzyme that catalyzes a dehydrochlorination reaction


thiolase

(biochemistry) Any enzyme that catalyzes the removal of a thiol group.


benzoyltransferase

(biochemistry) Any enzyme that catalyses the transfer of a benzoyl group


hydroxycinnamoyltransferase

(biochemistry) Any enzyme that catalyses the transfer of a hydroxycinnamoyl group


carboxylesterase

(biochemistry) Any enzyme that catalyses the hydrolysis of a carboxylic ester


chymopapain

chymopapain (countable and uncountable, plural chymopapains)

(biochemistry) A proteolytic enzyme isolated from the latex of papaya and used to treat herniated lower lumbar discs in the spine.


antizyme

(biochemistry) Any enzyme that inhibits the action of another


kallidinogenase

kallidinogenase (countable and uncountable, plural kallidinogenases)


ectophosphodiesterase

(biochemistry) Any phosphodiesterase that is active outside of a cell.


ectonucleotidase

(biochemistry) Any nucleotidase that is active outside of a cell


proprotease

(biochemistry) Any proenzyme that is converted into a protease


tryptase

(biochemistry) Any of a group of serine proteinase contained in mast cells


carbapenemase

carbapenemase (countable and uncountable, plural carbapenemases)

(biochemistry) Any lactamase that can hydrolyze carbapenem antibiotics and thus provide resistance to them


cellulosome

(biochemistry) A complex of enzymes that degrade the polysaccharide surface of cells and mediate cell attachment


autolysin

(biochemistry) Any enzyme that hydrolyses a component of the cell (or tissue) in which it is produced


uridylyltransferase

(biochemistry) Any transferase that catalyses the transfer of a uridylyl group between molecules


endosulfatase

(biochemistry) Any sulfatase that acts as an endoenzyme


serratiopeptidase

A proteolytic enzyme (protease) produced by Serratia enterobacteria.


cruzipain

(biochemistry) A particular cysteine protease


methylesterase

(biochemistry) Any esterase that catalyses the hydrolysis of a methyl ester


muropeptidase

(biochemistry) Any peptidase that catalyses the hydrolysis of a muropeptide


polyesterase

(biochemistry) Any enzyme that catalyses the hydrolysis of polyesters


ubiquitylase

(biochemistry) Any enzyme that catalyses the removal of a ubiquitin molecule from a protein.


endochitinase

(biochemistry) Any chitinase that can cleave a chitin molecule at a random point within the its chain


tankyrase

(biochemistry) Any of a group of proteins, associated with telomeres, that contain ankyrin repeats


ectoapyrase

(biochemistry) Any extracellular apyrase


mutanolysin

(biochemistry) A muralytic enzyme, obtained from Streptomyces, that is used in laboratories to degrade bacteria and to isolate DNA


galactase

galactase (countable and uncountable, plural galactases)

(biochemistry) An enzyme that produces galactose by the hydrolysis of lactose


dimethylaminohydrolase

(biochemistry) Any hydrolase that catalyses the removal of dimethylamine residues from a molecule


crotonase

(biochemistry) Any enzyme that catalyzes the hydration of crotonyl-coenzyme A


epoxidase

(biochemistry) Any enzyme that catalyzes an epoxidation reaction.


phosphoglycerate kinase

phosphoglycerate kinase (plural phosphoglycerate kinases)

(biochemistry) Any enzyme that catalyzes the transfer of a phosphate group between ATP and phosphoglycerate


dextrinase

(biochemistry) Any enzyme that catalyzes the hydrolysis of a dextrin


retropepsin

(biochemistry) Any of a group of retroviral proteases


oligopeptidase

From oligo- + peptidase or from oligopeptide + -ase.

(biochemistry) Any enzyme that catalyses the hydrolysis (cleavage) of a short oligopeptide rather than a protein


signalase

(biochemistry) A peptidase that cleaves signal peptides from secreted proteins cotranslationally


aspartase

(biochemistry) Any enzyme that catalyses the deamination of aspartic acid to fumaric acid and ammonia

aspartase

any enzyme that catalyses the deamination of aspartic acid to fumaric acid and ammonia


heparinase

(biochemistry) Any enzyme that catalyses the hydrolytic cleavage of heparins


glutamyltranspeptidase

(biochemistry) Any enzyme that catalyses the transfer of glutamic acid residues between proteins.


photoisomerase

(biochemistry) Any of a group of enzymes that catalyse the isomerization of photopigments


chronophin

(biochemistry) A serine protein phosphatase that regulates cofilin-dependent actin dynamics


ubiquitinase

(biochemistry) Any enzyme that catalyzes a ubiquitination reaction


galactosylceramidase

(biochemistry) An enzyme that removes galactose from ceramide derivatives (galactocerebrosides).


levansucrase

(biochemistry) A hexosyltransferase enzyme that catalyzes the chemical reaction sucrose + (2,6-beta-D-fructosyl)n ⇌ glucose + (2,6-beta-D-fructosyl)n⁺1.


verdoperoxidase

verdoperoxidase (countable and uncountable, plural verdoperoxidases)


farnesyltranstransferase

farnesyltranstransferase (usually uncountable, plural farnesyltranstransferases)

(biochemistry) An enzyme that catalyzes the chemical reaction trans,trans-farnesyl diphosphate + isopentenyl diphosphate ⇌ diphosphate + geranylgeranyl diphosphate, involved in steroid and terpenoid biosynthesis.


plasmepsin

(biochemistry) Any of a class of aspartic acid protease enzymes produced by the plasmodium parasite.


ribulokinase

(biochemistry) A transferase enzyme that catalyzes the chemical reaction ATP + L(or D)-ribulose ⇌ ADP + L(or D)-ribulose 5-phosphate.


ribokinase

(biochemistry) A transferase enzyme that catalyzes the chemical reaction ATP + D-ribose ⇌ ADP + D-ribose 5-phosphate.


rhamnulokinase

(biochemistry) A transferase enzyme that catalyzes the chemical reaction ATP + L-rhamnulose ⇌ ADP + L-rhamnulose 1-phosphate.


ficain

(biochemistry) An enzyme derived from figs.


galactokinase

galactokinase (countable and uncountable, plural galactokinases)

(biochemistry) An enzyme that facilitates the phosphorylation of α-D-galactose to galactose 1-phosphate at the expense of one molecule of ATP.


gluconolactonase

(biochemistry) A hydrolase enzyme that catalyzes the chemical reaction D-glucono-1,5-lactone + H₂O ⇌ D-gluconate.


gluconokinase

(biochemistry) A transferase enzyme that catalyzes the chemical reaction ATP + D-gluconate ⇌ ADP + 6-phospho-D-gluconate.


glycosylceramidase

(biochemistry) A hydrolase enzyme that catalyzes the chemical reaction glycosyl-N-acylsphingosine + H₂O ⇌ N-acylsphingosine + a sugar.


guanase

(biochemistry) guanine deaminase, an enzyme


guanylyltransferase

(biochemistry) An enzyme that transfers a guanosine monophosphate group, usually from GTP to another molecule, releasing pyrophosphate.


imidazolonepropionase

(biochemistry) A hydrolase enzyme that catalyzes the chemical reaction (S)-3-(5-oxo-4,5-dihydro-3H-imidazol-4-yl)propanoate + H₂O ⇌ N-formimidoyl-L-glutamate + H⁺.


iduronidase

iduronidase (countable and uncountable, plural iduronidases)

/ˌaɪ.d͡ʒəˈɹɑn.əˌdeɪs/

(biochemistry) An enzyme involved in the degeneration of glycosaminoglycans, and found in the lysosomes of cells.


ascorbase

(biochemistry) L-ascorbate oxidase, an oxidoreductase enzyme.


arylsulfotransferase

(biochemistry) A sulfotransferase enzyme that transfers a sulfate group from phenolic sulfate esters to a phenolic acceptor substrate.


aminase

(biochemistry) An enzyme involved in amination.


amylopullulanase

amylopullulanase (countable and uncountable, plural amylopullulanases)

(biochemistry) A glycoside hydrolase enzyme with amylase and pullulanase activity.


arabinosyltransferase

(biochemistry) A transferase enzyme acting upon arabinose, involved in polymerisation of arabinogalactan.

arabinosyylitransferaasi

a transferase enzyme acting upon arabinose


glutamyltransferase

(biochemistry) Any enzyme that catalyzes the transfer of a glutamyl group between molecules, especially between proteins


thioglucosidase

(biochemistry) A hydrolase enzyme that catalyzes the chemical reaction a thioglucoside + H₂O ⇌ a sugar + a thiol.


thyroperoxidase

thyroperoxidase (countable and uncountable, plural thyroperoxidases)

(biochemistry) An enzyme, expressed mainly in the thyroid, that liberates iodine for addition onto tyrosine residues on thyroglobulin for the production of thyroxine or triiodothyronine.


tomatinase

tomatinase (countable and uncountable, plural tomatinases)

(biochemistry) An enzyme that can degrade tomatine, found in some microbes.


transaldolase

transaldolase (countable and uncountable, plural transaldolases)

pentose phosphate pathway
pentose phosphate pathway

(biochemistry) An enzyme of the pentose phosphate pathway that catalyzes the chemical reaction sedoheptulose 7-phosphate + glyceraldehyde 3-phosphate ⇌ erythrose 4-phosphate + fructose 6-phosphate.


thiaminase

thiaminase (countable and uncountable, plural thiaminases)

(biochemistry) An enzyme that metabolizes or breaks down thiamine into two molecular parts.


tryptophanase

tryptophanase (countable and uncountable, plural tryptophanases)

(biochemistry) A lyase enzyme that catalyzes the chemical reaction L-tryptophan + H₂O ⇌ indole + pyruvate + NH₃.


tyrase

(biochemistry) The enzyme tyrosine ammonia lyase.


triokinase

(biochemistry) A transferase enzyme that catalyzes the chemical reaction ATP + D-glyceraldehyde ⇌ ADP + D-glyceraldehyde 3-phosphate.


zymohexase

zymohexase (countable and uncountable, plural zymohexases)


katsuwokinase

From Japanese 鰹 (katsuo,historical katsuwo, “skipjack tuna”) + kinase.

der

(biochemistry) A particular fibrinolytic enzyme.


kininogenase

en-noun

kininogenase (countable and uncountable, plural kininogenases)


histidase

histidase (countable and uncountable, plural histidases)


histidinase

(biochemistry) Histidine ammonia-lyase, an enzyme that converts histidine into ammonia and urocanic acid.


hyaluronoglucuronidase

hyaluronoglucuronidase (countable and uncountable, plural hyaluronoglucuronidases)

(biochemistry) A particular hyaluronidase enzyme.


hyaluronoglucosaminidase

hyaluronoglucosaminidase (countable and uncountable, plural hyaluronoglucosaminidases)


galactocerebrosidase

galactocerebrosidase (countable and uncountable, plural galactocerebrosidases)


biotinidase

biotinidase (usually uncountable, plural biotinidases)

(biochemistry) An enzyme that allows the body to use and recycle biotin.


malonyltransferase

malonyltransferase (countable and uncountable, plural malonyltransferases)

(biochemistry) An enzyme that catalyzes the transfer of malonyl.


metapyrocatechase

metapyrocatechase (countable and uncountable, plural metapyrocatechases)

(biochemistry) Catechol 2,3-dioxygenase, an enzyme that catalyzes the chemical reaction catechol + O₂ ⇌ 2-hydroxymuconate semialdehyde.


myokinase

myokinase (countable and uncountable, plural myokinases)

(biochemistry) adenylate kinase, a phosphotransferase enzyme that catalyzes the interconversion of adenine nucleotides and plays an important role in cellular energy homeostasis


agarase

agarase (countable and uncountable, plural agarases)

(biochemistry) An enzyme found in agarolytic bacteria, allowing them to use agar as their primary source of carbon.


aminoacyltransferase

aminoacyltransferase (countable and uncountable, plural aminoacyltransferases)

(biochemistry) Any acyltransferase enzyme that acts upon an amino group.


alkylhalidase

(biochemistry) A hydrolase enzyme that catalyzes the chemical reaction bromochloromethane + H₂O ⇌ formaldehyde + bromide + chloride.


alternansucrase

alternansucrase (countable and uncountable, plural alternansucrases)

(biochemistry) A glycosyltransferase enzyme that catalyzes a chemical reaction that transfers an alpha-D-glucosyl residue from sucrose alternately to the 6- and 3-positions of the non-reducing terminal residue of an alpha-D-glucan, thereby creating a glucan with alternating alpha-1,6- and alpha-1,3-bonds.


aminoacylase

aminoacylase (countable and uncountable, plural aminoacylases)

(biochemistry) A hydrolase enzyme that catalyzes the chemical reaction an N-acyl-L-amino acid + H₂O ⇌ a carboxylate + an L-amino acid.


argininosuccinase

argininosuccinase (countable and uncountable, plural argininosuccinases)

argininosuccinate lyase
argininosuccinate lyase


arylformamidase

arylformamidase (countable and uncountable, plural arylformamidases)

(biochemistry) A hydrolase enzyme that catalyzes the chemical reaction N-formyl-L-kynurenine + H₂O ⇌ formate + L-kynurenine.


aryldialkylphosphatase

aryldialkylphosphatase (countable and uncountable, plural aryldialkylphosphatases)

(biochemistry) An enzyme that hydrolyzes organophosphates: an aryl dialkyl phosphate + H₂O ⇌ dialkyl phosphate + an aryl alcohol.


peptidyltransferase

peptidyltransferase (countable and uncountable, plural peptidyltransferases)

(biochemistry) An aminoacyltransferase involved in protein biosynthesis.


prolidase

prolidase (countable and uncountable, plural prolidases)

(biochemistry) A cytosolic dipeptidase that hydrolyzes dipeptides with proline or hydroxyproline at the carboxy terminus (but not Pro-Pro), important in collagen metabolism.


foldase

(biochemistry) An enzyme that catalyzes protein folding.


nitrite reductase

nitrite reductase (plural nitrite reductases)

(biochemistry) Any enzyme that catalyses the reduction of nitrite ions


hydroxymethyltransferase

hydroxymethyltransferase (countable and uncountable, plural hydroxymethyltransferases)

(biochemistry) Any transferase enzyme that transfers a hydroxymethyl group.


aldehyde oxidase

aldehyde oxidase (plural aldehyde oxidases)

(biochemistry) Any enzyme that catalyzes the oxidation of an aldehyde to a carboxylic acid


nicotinamidase

nicotinamidase (countable and uncountable, plural nicotinamidases)

(biochemistry) A hydrolase enzyme that catalyzes the chemical reaction nicotinamide + H₂O ⇌ nicotinate + NH₃.


GDOR

(biochemistry) Glutathione dehydrogenase (ascorbate)


fibrinase

fibrinase (countable and uncountable, plural fibrinases)

(biochemistry) An enzyme involved in the formation of fibrin.


endodeoxyribonuclease

(biochemistry) An enzyme that is both a deoxyribonuclease and an endonuclease.


oligonucleotidase

oligonucleotidase (countable and uncountable, plural oligonucleotidases)

(biochemistry) Any enzyme that catalyses the hydrolysis of an oligonucleotide, but especially an exoribonuclease derived from Flammulina velutipes.


permethrinase

(biochemistry) pyrethroid hydrolase, an enzyme involved in degradation of pyrethroid pesticides


nucleotidylexotransferase

nucleotidylexotransferase (usually uncountable, plural nucleotidylexotransferases)

(biochemistry) A specialized DNA polymerase expressed in immature, pre-B, pre-T lymphoid cells, and acute lymphoblastic leukemia/lymphoma cells, which adds N-nucleotides to the V, D, and J exons during antibody gene recombination.


nattokinase

From Japanese 納豆菌 (nattōkin, “nattō-bacteria”) + -ase. (It is not a kinase.)

uder

(biochemistry) A serine protease of the subtilisin family, extracted from natto.


desmolase

en-noun

desmolase (countable and uncountable, plural desmolases)

(biochemistry) An enzyme that catalyzes the formation or destruction of carbon-carbon bonds within a molecule. These enzymes play a significant role in respiration and fermentation.


diisopropylfluorophosphatase

diisopropylfluorophosphatase (countable and uncountable, plural diisopropylfluorophosphatases)

(biochemistry) A hydrolase enzyme that catalyzes the chemical reaction diisopropyl fluorophosphate + H₂O ⇌ diisopropyl phosphate + fluoride.


deamidase

deamidase (countable and uncountable, plural deamidases)

(biochemistry) An enzyme, carboxypeptidase C.


diphosphotransferase

(biochemistry) Any of a group of phosphotransferase enzymes that act on pyrophosphate groups.


arbutinase

(biochemistry) The enzyme beta-glucosidase.


amygdalase

amygdalase (countable and uncountable, plural amygdalases)

amygdalin beta-glucosidase
amygdalin beta-glucosidase

(biochemistry) Either of two enzymes: beta-glucosidase and amygdalin beta-glucosidase.


linamarase

(biochemistry) beta-D-glucosidase, an enzyme found in many plants including cassava and the butter bean; an enzyme which breaks down linamarin and produces cyanohydrines and thus hydrogen cyanide


exocellulase

(biochemistry) Any cellulase that hydrolyse glycoside links at the ends of cellulose chains


tripeptide aminopeptidase

(biochemistry) A zinc enzyme, widely distributed in mammalian tissues, that catalyzes the release of the N-terminal residue from a tripeptide.


alkylglycerone phosphate synthase

alkylglycerone phosphate synthase (plural alkylglycerone phosphate synthases)

alkylglycerone phosphate synthases (plural)

(biochemistry) An enzyme that catalyzes the chemical reaction 1-acyl-glycerone 3-phosphate + a long-chain alcohol ⇌ an alkyl-glycerone 3-phosphate + a long-chain acid anion.