Enzymes A-Z
Complete database of 6965 enzymes with EC numbers, catalytic activities, alternative names, and UniProt cross-references. Browse by EC class or search for specific enzymes.
Enzymes A-Z
Complete database of 6965 enzymes with EC numbers, catalytic activities, alternative names, and UniProt cross-references. Browse by EC class or search for specific enzymes.
L-tryptophan--pyruvate aminotransferase (EC 2.6.1.99)
L-tryptophan--pyruvate aminotransferase. EC 2.6.1.99.. L-tryptophan + pyruvate = indole-3-pyruvate + L-alanine.
L-tyrosine 3-nitrase (EC 1.14.15.42)
L-tyrosine 3-nitrase. EC 1.14.15.42.. L-Met-L-Arg-L-Tyr-L-Leu-L-His + nitric oxide + reduced [2Fe-2S]-
L-tyrosine C(3)-methyltransferase (EC 2.1.1.304)
L-tyrosine C(3)-methyltransferase. EC 2.1.1.304.. L-tyrosine + S-adenosyl-L-methionine = 3-methyl-L-tyrosine + S-adenosyl-
L-tyrosine isonitrile synthase (EC 4.1.99.24)
L-tyrosine isonitrile synthase. EC 4.1.99.24.. D-ribulose 5-phosphate + L-tyrosine = (2S)-3-(4-hydroxyphenyl)-2-
L-tyrosine peroxygenase (EC 1.11.2.6)
L-tyrosine peroxygenase. EC 1.11.2.6.. L-tyrosine + H2O2 = L-dopa + H2O.
L-tyrosine reductase (EC 1.2.1.101)
L-tyrosine reductase. EC 1.2.1.101.. L-tyrosinal + AMP + diphosphate + NADP(+) = L-tyrosine + ATP + NADPH +
L-xylose 1-dehydrogenase (EC 1.1.1.113)
L-xylose 1-dehydrogenase. EC 1.1.1.113.. L-xylose + NADP(+) = L-xylono-1,4-lactone + NADPH + H(+).
L-xylulokinase (EC 2.7.1.53)
L-xylulokinase. EC 2.7.1.53.. L-xylulose + ATP = L-xylulose 5-phosphate + ADP + H(+).
L-xylulose reductase (EC 1.1.1.10)
L-xylulose reductase. EC 1.1.1.10.. xylitol + NADP(+) = L-xylulose + NADPH + H(+).
L(+)-tartrate dehydratase (EC 4.2.1.32)
L(+)-tartrate dehydratase. EC 4.2.1.32.. (2R,3R)-tartrate = oxaloacetate + H2O.
labda-7,13-dienyl diphosphate synthase (EC 5.5.1.30)
labda-7,13-dienyl diphosphate synthase. EC 5.5.1.30.. (2E,6E,10E)-geranylgeranyl diphosphate = (13E)-labda-7,13-dien-15-yl
labda-7,13(16),14-triene synthase (EC 4.2.3.192)
labda-7,13(16),14-triene synthase. EC 4.2.3.192.. (13E)-labda-7,13-dien-15-yl diphosphate = labda-7,13(16),14-triene +
labdatriene synthase (EC 4.2.3.99)
labdatriene synthase. EC 4.2.3.99.. 9alpha-copalyl diphosphate = (12E)-9alpha-labda-8(17),12,14-triene +
laccase (EC 1.10.3.2)
laccase. EC 1.10.3.2.. 4 hydroquinone + O2 = 4 benzosemiquinone + 2 H2O.
lachrymatory-factor synthase (EC 5.3.99.12)
lachrymatory-factor synthase. EC 5.3.99.12.. (E)-alk-1-en-1-SO-peroxol = (Z)-alkanethial oxide.
lactaldehyde dehydrogenase (EC 1.2.1.22)
lactaldehyde dehydrogenase. EC 1.2.1.22.. (S)-lactaldehyde + NAD(+) + H2O = (S)-lactate + NADH + 2 H(+).
lactaldehyde reductase (EC 1.1.1.77)
lactaldehyde reductase. EC 1.1.1.77.. (1) (R)-propane-1,2-diol + NAD(+) = (R)-lactaldehyde + NADH + H(+).
lactaldehyde reductase (NADPH) (EC 1.1.1.55)
lactaldehyde reductase (NADPH). EC 1.1.1.55.. propane-1,2-diol + NADP(+) = (S)-lactaldehyde + NADPH + H(+).
lactase (EC 3.2.1.108)
lactase. EC 3.2.1.108.. lactose + H2O = beta-D-galactose + D-glucose.
lactate 2-monooxygenase (EC 1.13.12.4)
lactate 2-monooxygenase. EC 1.13.12.4.. (S)-lactate + O2 = acetate + CO2 + H2O.
lactate aldolase (EC 4.1.2.36)
lactate aldolase. EC 4.1.2.36.. (S)-lactate = acetaldehyde + formate.
lactate dehydrogenase (NAD(+),ferredoxin) (EC 1.1.1.436)
lactate dehydrogenase (NAD(+),ferredoxin). EC 1.1.1.436.. lactate + 2 reduced [2Fe-2S]-[ferredoxin] + 2 NAD(+) = 2 oxidized [2Fe-
lactate racemase (EC 5.1.2.1)
lactate racemase. EC 5.1.2.1.. (S)-lactate = (R)-lactate.
lactate--malate transhydrogenase (EC 1.1.99.7)
lactate--malate transhydrogenase. EC 1.1.99.7.. (S)-lactate + oxaloacetate = (S)-malate + pyruvate.
lacto-N-biosidase (EC 3.2.1.140)
lacto-N-biosidase. EC 3.2.1.140.. beta-D-Gal-(1->3)-beta-D-GlcNAc-(1->3)-beta-D-Gal-(1->4)-D-Glc + H2O =
lactocepin (EC 3.4.21.96)
lactocepin. EC 3.4.21.96.. Endopeptidase activity with very broad specificity, although some subsite
lactose synthase (EC 2.4.1.22)
lactose synthase. EC 2.4.1.22.. D-glucose + UDP-alpha-D-galactose = lactose + UDP + H(+).
lactosylceramide 1,3-N-acetyl-beta-D-glucosaminyltransferase (EC 2.4.1.206)
lactosylceramide 1,3-N-acetyl-beta-D-glucosaminyltransferase. EC 2.4.1.206.. a beta-D-Gal-(1->4)-beta-D-Glc-(1<->1)-Cer(d18:1(4E)) + UDP-N-acetyl-
lactosylceramide 4-alpha-galactosyltransferase (EC 2.4.1.228)
lactosylceramide 4-alpha-galactosyltransferase. EC 2.4.1.228.. a beta-D-Gal-(1->4)-beta-D-Glc-(1<->1)-Cer(d18:1(4E)) + UDP-alpha-D-
lactosylceramide alpha-2,3-sialyltransferase (EC 2.4.3.9)
lactosylceramide alpha-2,3-sialyltransferase. EC 2.4.3.9.. a beta-D-Gal-(1->4)-beta-D-Glc-(1<->1)-Cer(d18:1(4E)) + CMP-N-acetyl-
lactosylceramide beta-1,3-galactosyltransferase (EC 2.4.1.179)
lactosylceramide beta-1,3-galactosyltransferase. EC 2.4.1.179.. a beta-D-galactosyl-(1->4)-beta-D-glucosyl derivative + UDP-alpha-D-
lactoyl-CoA dehydratase (EC 4.2.1.54)
lactoyl-CoA dehydratase. EC 4.2.1.54.. (R)-lactoyl-CoA = acryloyl-CoA + H2O.
lactoylglutathione lyase (EC 4.4.1.5)
lactoylglutathione lyase. EC 4.4.1.5.. (R)-S-lactoylglutathione = methylglyoxal + glutathione.
lambda-carrageenase (EC 3.2.1.162)
lambda-carrageenase. EC 3.2.1.162.. Endohydrolysis of (1->4)-beta-linkages in the backbone of lambda-
laminaribiose phosphorylase (EC 2.4.1.31)
laminaribiose phosphorylase. EC 2.4.1.31.. beta-D-glucosyl-(1->3)-D-glucose + phosphate = alpha-D-glucose
lanosterol synthase (EC 5.4.99.7)
lanosterol synthase. EC 5.4.99.7.. (S)-2,3-epoxysqualene = lanosterol.
lanthanide-dependent methanol dehydrogenase (EC 1.1.2.10)
lanthanide-dependent methanol dehydrogenase. EC 1.1.2.10.. 2 Fe(III)-[cytochrome cL] + methanol = 2 Fe(II)-[cytochrome cL] +
lanthipeptide synthase (EC 3.13.2.4)
lanthipeptide synthase. EC 3.13.2.4.. (1) a [protein]-L-serine + a [protein]-L-cysteine = a [protein] with
Latia-luciferin monooxygenase (demethylating) (EC 1.14.99.21)
Latia-luciferin monooxygenase (demethylating). EC 1.14.99.21.. Latia luciferin + AH2 + 2 O2 = oxidized Latia luciferin + hnu + formate +
laurate 7-monooxygenase (EC 1.14.14.130)
laurate 7-monooxygenase. EC 1.14.14.130.. dodecanoate + reduced [NADPH--hemoprotein reductase] + O2 =
lavandulyl diphosphate synthase (EC 2.5.1.69)
lavandulyl diphosphate synthase. EC 2.5.1.69.. 2 dimethylallyl diphosphate = (R)-lavandulyl diphosphate + diphosphate.
leachianone-G 2''-dimethylallyltransferase (EC 2.5.1.71)
leachianone-G 2''-dimethylallyltransferase. EC 2.5.1.71.. leachianone G + dimethylallyl diphosphate = sophoraflavanone G +
leghemoglobin reductase (EC 1.6.2.6)
leghemoglobin reductase. EC 1.6.2.6.. (1) 2 Fe(III)-[leghemoglobin] + NADPH = 2 Fe(II)-[leghemoglobin] +
legumain (EC 3.4.22.34)
legumain. EC 3.4.22.34.. Hydrolysis of proteins and small molecule substrates at -Asn-|-
leishmanolysin (EC 3.4.24.36)
leishmanolysin. EC 3.4.24.36.. Preference for hydrophobic residues at P1 and P1' and basic residues at
leucine 2,3-aminomutase (EC 5.4.3.7)
leucine 2,3-aminomutase. EC 5.4.3.7.. L-leucine = (3R)-beta-leucine.
leucine dehydrogenase (EC 1.4.1.9)
leucine dehydrogenase. EC 1.4.1.9.. L-leucine + NAD(+) + H2O = 4-methyl-2-oxopentanoate + NH4(+) + NADH +
leucine N-acetyltransferase (EC 2.3.1.66)
leucine N-acetyltransferase. EC 2.3.1.66.. L-leucine + acetyl-CoA = N-acetyl-L-leucine + CoA + H(+).
leucine transaminase (EC 2.6.1.6)
leucine transaminase. EC 2.6.1.6.. L-leucine + 2-oxoglutarate = 4-methyl-2-oxopentanoate + L-glutamate.
leucine--tRNA ligase (EC 6.1.1.4)
leucine--tRNA ligase. EC 6.1.1.4.. tRNA(Leu) + L-leucine + ATP = L-leucyl-tRNA(Leu) + AMP + diphosphate.
leucoanthocyanidin reductase (EC 1.17.1.3)
leucoanthocyanidin reductase. EC 1.17.1.3.. (2R,3S)-catechin + NADP(+) + H2O = (2R,3S,4S)-leucocyanidin + NADPH +
leucolysin (EC 3.4.24.6)
leucolysin. EC 3.4.24.6.. Cleavage of 1-Phe-|-Val-2, 5-His-|-Leu-6, 14-Ala-|-Leu-15, 20-Gly-|-Glu-
leucyl aminopeptidase (EC 3.4.11.1)
leucyl aminopeptidase. EC 3.4.11.1.. Release of an N-terminal amino acid, Xaa-|-Yaa-, in which Xaa is
leucyl endopeptidase (EC 3.4.21.57)
leucyl endopeptidase. EC 3.4.21.57.. Hydrolysis of proteins. Preferential cleavage: Leu-|-Xaa in small
leukocyte elastase (EC 3.4.21.37)
leukocyte elastase. EC 3.4.21.37.. Hydrolysis of proteins, including elastin. Preferential cleavage:
leukotriene-A4 hydrolase (EC 3.3.2.6)
leukotriene-A4 hydrolase. EC 3.3.2.6.. leukotriene A4 + H2O = leukotriene B4.
leukotriene-B4 20-monooxygenase (EC 1.14.14.94)
leukotriene-B4 20-monooxygenase. EC 1.14.14.94.. leukotriene B4 + reduced [NADPH--hemoprotein reductase] + O2 =
leukotriene-C4 hydrolase (EC 3.4.19.14)
leukotriene-C4 hydrolase. EC 3.4.19.14.. leukotriene C4 + H2O = leukotriene D4 + L-glutamate.
leukotriene-C4 synthase (EC 4.4.1.20)
leukotriene-C4 synthase. EC 4.4.1.20.. leukotriene C4 = leukotriene A4 + glutathione.
leukotriene-E4 20-monooxygenase (EC 1.14.13.34)
leukotriene-E4 20-monooxygenase. EC 1.14.13.34.. leukotriene E4 + NADPH + O2 + H(+) = 20-hydroxy-leukotriene E4 + NADP(+)