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.
nitrate reductase (quinone) (EC 1.7.5.1)
nitrate reductase (quinone). EC 1.7.5.1.. nitrate + a quinol = a quinone + nitrite + H2O.
nitrate reductase [NAD(P)H] (EC 1.7.1.2)
nitrate reductase [NAD(P)H]. EC 1.7.1.2.. (1) nitrite + NADP(+) + H2O = nitrate + NADPH + H(+).
nitric oxide dioxygenase (EC 1.14.12.17)
nitric oxide dioxygenase. EC 1.14.12.17.. (1) 2 nitric oxide + NADPH + 2 O2 = 2 nitrate + NADP(+) + H(+).
nitric oxide reductase (menaquinol) (EC 1.7.5.2)
nitric oxide reductase (menaquinol). EC 1.7.5.2.. a menaquinol + 2 nitric oxide = nitrous oxide + a menaquinone + H2O.
nitric oxide reductase [NAD(P)(+), nitrous oxide-forming] (EC 1.7.1.14)
nitric oxide reductase [NAD(P)(+), nitrous oxide-forming]. EC 1.7.1.14.. (1) nitrous oxide + NAD(+) + H2O = 2 nitric oxide + NADH + H(+).
nitric-oxide reductase (cytochrome c) (EC 1.7.2.5)
nitric-oxide reductase (cytochrome c). EC 1.7.2.5.. nitrous oxide + 2 Fe(III)-[cytochrome c] + H2O = 2 nitric oxide +
nitric-oxide synthase (flavodoxin) (EC 1.14.14.47)
nitric-oxide synthase (flavodoxin). EC 1.14.14.47.. 3 reduced [flavodoxin] + 2 L-arginine + 4 O2 = 3 oxidized [flavodoxin] +
nitric-oxide synthase (NADPH) (EC 1.14.13.39)
nitric-oxide synthase (NADPH). EC 1.14.13.39.. 2 L-arginine + 3 NADPH + 4 O2 + H(+) = 2 L-citrulline + 2 nitric oxide +
nitrilase (EC 3.5.5.1)
nitrilase. EC 3.5.5.1.. a nitrile + 2 H2O = a carboxylate + NH4(+).
nitrile hydratase (EC 4.2.1.84)
nitrile hydratase. EC 4.2.1.84.. an aliphatic primary amide = an aliphatic nitrile + H2O.
nitrilotriacetate monooxygenase (EC 1.14.14.10)
nitrilotriacetate monooxygenase. EC 1.14.14.10.. nitrilotriacetate + FMNH2 + O2 = aminodiacetate + FMN + glyoxylate + H2O.
nitrite dismutase (EC 1.7.6.1)
nitrite dismutase. EC 1.7.6.1.. 3 nitrite + 2 H(+) = 2 nitric oxide + nitrate + H2O.
nitrite reductase (cytochrome; ammonia-forming) (EC 1.7.2.2)
nitrite reductase (cytochrome; ammonia-forming). EC 1.7.2.2.. 6 Fe(III)-[cytochrome c] + NH4(+) + 2 H2O = 6 Fe(II)-[cytochrome c] +
nitrite reductase (NADH) (EC 1.7.1.15)
nitrite reductase (NADH). EC 1.7.1.15.. NH4(+) + 3 NAD(+) + 2 H2O = nitrite + 3 NADH + 5 H(+).
nitrite reductase (NO-forming) (EC 1.7.2.1)
nitrite reductase (NO-forming). EC 1.7.2.1.. nitric oxide + Fe(III)-[cytochrome c] + H2O = Fe(II)-[cytochrome c] +
nitrite reductase [NAD(P)H] (EC 1.7.1.4)
nitrite reductase [NAD(P)H]. EC 1.7.1.4.. (1) NH4(+) + 3 NAD(+) + 2 H2O = nitrite + 3 NADH + 5 H(+).
nitroalkane oxidase (EC 1.7.3.1)
nitroalkane oxidase. EC 1.7.3.1.. (1) a primary nitroalkane + O2 + H2O = an aldehyde + nitrite + H2O2 +
nitroarene dioxygenase (EC 1.14.12.23)
nitroarene dioxygenase. EC 1.14.12.23.. nitrobenzene + NADH + O2 = catechol + nitrite + NAD(+).
nitrobenzene nitroreductase (EC 1.7.1.16)
nitrobenzene nitroreductase. EC 1.7.1.16.. N-phenylhydroxylamine + 2 NADP(+) + H2O = nitrobenzene + 2 NADPH +
nitrogenase (EC 1.18.6.1)
nitrogenase. EC 1.18.6.1.. N2 + 8 reduced [2Fe-2S]-[ferredoxin] + 16 ATP + 16 H2O = H2 + 8 oxidized
nitrogenase (flavodoxin) (EC 1.19.6.1)
nitrogenase (flavodoxin). EC 1.19.6.1.. N2 + 4 reduced [flavodoxin] + 16 ATP + 16 H2O = 4 oxidized [flavodoxin] +
nitronate monooxygenase (EC 1.13.12.16)
nitronate monooxygenase. EC 1.13.12.16.. ethylnitronate + O2 = chemical entity + acetaldehyde + nitrite + H(+).
nitroquinoline-N-oxide reductase (EC 1.7.1.9)
nitroquinoline-N-oxide reductase. EC 1.7.1.9.. (1) 4-(hydroxyamino)quinoline N-oxide + 2 NADP(+) + H2O =
nitrosourea synthase (EC 1.14.13.250)
nitrosourea synthase. EC 1.14.13.250.. N(omega)-methyl-L-arginine + 2 NADH + 3 O2 + H(+) = N(delta)-hydroxy-
nitrosuccinate lyase (EC 4.3.99.5)
nitrosuccinate lyase. EC 4.3.99.5.. 2-nitrobutanedioate = fumarate + nitrite + H(+).
nitrous-oxide reductase (EC 1.7.2.4)
nitrous-oxide reductase. EC 1.7.2.4.. N2 + 2 Fe(III)-[cytochrome c] + H2O = nitrous oxide + 2 Fe(II)-
NMN nucleosidase (EC 3.2.2.14)
NMN nucleosidase. EC 3.2.2.14.. beta-nicotinamide D-ribonucleotide + H2O = D-ribose 5-phosphate +
NNS virus cap methyltransferase (EC 2.1.1.375)
NNS virus cap methyltransferase. EC 2.1.1.375.. a 5'-end (5'-triphosphoguanosine)-adenylyl-adenylyl-cytidylyl-adenosine
nocamycin O-methyltransferase (EC 2.1.1.351)
nocamycin O-methyltransferase. EC 2.1.1.351.. nocamycin E + S-adenosyl-L-methionine = nocamycin I + S-adenosyl-L-
nocardicin C N-oxygenase (EC 1.14.15.43)
nocardicin C N-oxygenase. EC 1.14.15.43.. nocardicin C + 4 reduced [2Fe-2S]-[ferredoxin] + 2 O2 + 2 H(+) =
nocardicin-A epimerase (EC 5.1.1.14)
nocardicin-A epimerase. EC 5.1.1.14.. (1) isonocardicin C = nocardicin C.
nocturnin (EC 3.1.3.108)
nocturnin. EC 3.1.3.108.. (1) NADPH + H2O = phosphate + NADH.
nodavirus endopeptidase (EC 3.4.23.44)
nodavirus endopeptidase. EC 3.4.23.44.. Hydrolysis of an asparaginyl bond involved in the maturation of the
nogalonic acid methyl ester cyclase (EC 5.5.1.26)
nogalonic acid methyl ester cyclase. EC 5.5.1.26.. nogalaviketone = methyl nogalonate.
non-chaperonin molecular chaperone ATPase (EC 3.6.4.10)
non-chaperonin molecular chaperone ATPase. EC 3.6.4.10.. ATP + H2O = ADP + phosphate + H(+).
non-reducing end alpha-L-arabinofuranosidase (EC 3.2.1.55)
non-reducing end alpha-L-arabinofuranosidase. EC 3.2.1.55.. Hydrolysis of terminal non-reducing alpha-L-arabinofuranoside residues in
non-reducing end beta-L-arabinofuranosidase (EC 3.2.1.185)
non-reducing end beta-L-arabinofuranosidase. EC 3.2.1.185.. beta-L-arabinofuranosyl-(1->2)-beta-L-arabinofuranose + H2O = 2 beta-L-
non-reducing end beta-L-arabinopyranosidase (EC 3.2.1.88)
non-reducing end beta-L-arabinopyranosidase. EC 3.2.1.88.. Removal of a terminal beta-L-arabinopyranose residue from the non-
non-specific polyamine oxidase (EC 1.5.3.17)
non-specific polyamine oxidase. EC 1.5.3.17.. (1) spermine + O2 + H2O = 3-aminopropanal + spermidine + H2O2.
non-specific protein-tyrosine kinase (EC 2.7.10.2)
non-specific protein-tyrosine kinase. EC 2.7.10.2.. L-tyrosyl-[protein] + ATP = O-phospho-L-tyrosyl-[protein] + ADP + H(+).
non-specific serine/threonine protein kinase (EC 2.7.11.1)
non-specific serine/threonine protein kinase. EC 2.7.11.1.. (1) L-seryl-[protein] + ATP = O-phospho-L-seryl-[protein] + ADP + H(+).
non-stereospecific dipeptidase (EC 3.4.13.17)
non-stereospecific dipeptidase. EC 3.4.13.17.. Hydrolysis of dipeptides containing either D- or L-amino acids or both.
norajmaline N-methyltransferase (EC 2.1.1.392)
norajmaline N-methyltransferase. EC 2.1.1.392.. norajmaline + S-adenosyl-L-methionine = ajmaline + S-adenosyl-L-
noranthrone monooxygenase (EC 1.13.12.20)
noranthrone monooxygenase. EC 1.13.12.20.. noranthrone + O2 = norsolorinic acid + H2O.
noranthrone synthase (EC 2.3.1.221)
noranthrone synthase. EC 2.3.1.221.. hexanoyl-[ACP] + 7 malonyl-CoA + 6 H(+) = noranthrone + holo-[ACP] +
norbelladine O-methyltransferase (EC 2.1.1.336)
norbelladine O-methyltransferase. EC 2.1.1.336.. norbelladine + S-adenosyl-L-methionine = 4'-O-methylnorbelladine +
norfluorocurarine 18-hydroxylase (EC 1.14.14.188)
norfluorocurarine 18-hydroxylase. EC 1.14.14.188.. norfluorocurarine + reduced [NADPH--hemoprotein reductase] + O2 =
noroxomaritidine synthase (EC 1.14.19.50)
noroxomaritidine synthase. EC 1.14.19.50.. (1) 4'-O-methylnorbelladine + reduced [NADPH--hemoprotein reductase] +
norsolorinic acid ketoreductase (EC 1.1.1.349)
norsolorinic acid ketoreductase. EC 1.1.1.349.. (1'S)-averantin + NADP(+) = norsolorinic acid + NADPH + H(+).
norspermine synthase (EC 2.5.1.126)
norspermine synthase. EC 2.5.1.126.. norspermidine + S-adenosyl 3-(methylsulfanyl)propylamine = norspermine +
noscapine synthase (EC 1.1.1.415)
noscapine synthase. EC 1.1.1.415.. narcotine hemiacetal + NAD(+) = noscapine + NADH + H(+).
nuatigenin 3beta-glucosyltransferase (EC 2.4.1.192)
nuatigenin 3beta-glucosyltransferase. EC 2.4.1.192.. nuatigenin + UDP-alpha-D-glucose = nuatigenin 3-beta-D-glucopyranoside +
nuclear-inclusion-a endopeptidase (EC 3.4.22.44)
nuclear-inclusion-a endopeptidase. EC 3.4.22.44.. Hydrolyzes glutaminyl bonds, and activity is further restricted by
nucleoside deoxyribosyltransferase (EC 2.4.2.6)
nucleoside deoxyribosyltransferase. EC 2.4.2.6.. 2-deoxy-D-ribosyl-base(1) + base(2) = 2-deoxy-D-ribosyl-base(2) +
nucleoside diphosphate phosphatase (EC 3.6.1.6)
nucleoside diphosphate phosphatase. EC 3.6.1.6.. a ribonucleoside 5'-diphosphate + H2O = a ribonucleoside 5'-phosphate +
nucleoside oxidase (EC 1.1.3.28)
nucleoside oxidase. EC 1.1.3.28.. inosine + O2 = 9-riburonosylhypoxanthine + H2O + H(+).
nucleoside oxidase (H2O2-forming) (EC 1.1.3.39)
nucleoside oxidase (H2O2-forming). EC 1.1.3.39.. adenosine + 2 O2 + H2O = 9-riburonosyladenine + 2 H2O2 + H(+).
nucleoside phosphoacylhydrolase (EC 3.6.1.24)
nucleoside phosphoacylhydrolase. EC 3.6.1.24.. Hydrolyzes mixed phospho-anhydride bonds.
nucleoside phosphotransferase (EC 2.7.1.77)
nucleoside phosphotransferase. EC 2.7.1.77.. a 2'-deoxyribonucleoside + a ribonucleoside 5'-phosphate =
nucleoside ribosyltransferase (EC 2.4.2.5)
nucleoside ribosyltransferase. EC 2.4.2.5.. D-ribosyl-base(1) + base(2) = D-ribosyl-base(2) + base(1).