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.
plant seed peroxygenase (EC 1.11.2.3)
plant seed peroxygenase. EC 1.11.2.3.. RH + ROOH = ROH + ROH.
plasma kallikrein (EC 3.4.21.34)
plasma kallikrein. EC 3.4.21.34.. Cleaves selectively Arg-|-Xaa and Lys-|-Xaa bonds, including Lys-|-Arg
plasmalogen synthase (EC 2.3.1.25)
plasmalogen synthase. EC 2.3.1.25.. a 1-O-(1Z-alkenyl)-sn-glycero-3-phosphocholine + an acyl-CoA = a 1-O-
plasmanylethanolamine desaturase (EC 1.14.19.77)
plasmanylethanolamine desaturase. EC 1.14.19.77.. a 1-(1,2-saturated alkyl)-2-acyl-sn-glycero-3-phosphoethanolamine +
plasmepsin I (EC 3.4.23.38)
plasmepsin I. EC 3.4.23.38.. Hydrolysis of the 33-Phe-|-Leu-34 bond in the alpha-chain of hemoglobin,
plasmepsin II (EC 3.4.23.39)
plasmepsin II. EC 3.4.23.39.. Hydrolysis of the bonds linking certain hydrophobic residues in
plasmin (EC 3.4.21.7)
plasmin. EC 3.4.21.7.. Preferential cleavage: Lys-|-Xaa > Arg-|-Xaa, higher selectivity than
plasminogen activator Pla (EC 3.4.23.48)
plasminogen activator Pla. EC 3.4.23.48.. Converts human Glu-plasminogen to plasmin by cleaving the 560-Arg-|-Val-
plastoquinol--plastocyanin reductase (EC 7.1.1.6)
plastoquinol--plastocyanin reductase. EC 7.1.1.6.. 2 oxidized [plastocyanin] + a plastoquinol + 2 H(+)(in) = 2 reduced
platelet-activating factor acetyltransferase (EC 2.3.1.149)
platelet-activating factor acetyltransferase. EC 2.3.1.149.. a 1-organyl-2-lyso-sn-glycero-3-phospholipid + a 1-O-alkyl-2-acetyl-
plus-end-directed kinesin ATPase (EC 5.6.1.3)
plus-end-directed kinesin ATPase. EC 5.6.1.3.. ATP + H2O + a kinesin associated with a microtubule at position (n) =
polo kinase (EC 2.7.11.21)
polo kinase. EC 2.7.11.21.. (1) L-seryl-[protein] + ATP = O-phospho-L-seryl-[protein] + ADP + H(+).
poly(3-hydroxybutyrate) depolymerase (EC 3.1.1.75)
poly(3-hydroxybutyrate) depolymerase. EC 3.1.1.75.. (1) [(3R)-hydroxybutanoate](n) + H2O = [(3R)-hydroxybutanoate](n-1) +
poly(3-hydroxyoctanoate) depolymerase (EC 3.1.1.76)
poly(3-hydroxyoctanoate) depolymerase. EC 3.1.1.76.. Hydrolyzes the polyester poly{oxycarbonyl[(R)-2-pentylethylene]} to
poly(A)-specific ribonuclease (EC 3.1.13.4)
poly(A)-specific ribonuclease. EC 3.1.13.4.. Exonucleolytic cleavage of poly(A) to 5'-AMP.
poly(ADP-ribose) glycohydrolase (EC 3.2.1.143)
poly(ADP-ribose) glycohydrolase. EC 3.2.1.143.. [(1''->2')-ADP-alpha-D-ribose](n) + H2O = [(1''->2')-ADP-alpha-D-
poly(ethylene terephthalate) hydrolase (EC 3.1.1.101)
poly(ethylene terephthalate) hydrolase. EC 3.1.1.101.. (ethylene terephthalate)(n) + H2O = (ethylene terephthalate)(n-1) +
poly(glycerol-phosphate) alpha-glucosyltransferase (EC 2.4.1.52)
poly(glycerol-phosphate) alpha-glucosyltransferase. EC 2.4.1.52.. 4-O-{[(2R)-1-glycerylphospho](n)-(2R)-1-glycerylphospho}-N-acetyl-beta-D-
poly(ribitol-phosphate) alpha-N-acetylglucosaminyltransferase (EC 2.4.1.70)
poly(ribitol-phosphate) alpha-N-acetylglucosaminyltransferase. EC 2.4.1.70.. 4-O-[(D-ribitylphospho)(n)-di{(2R)-glycerylphospho}]-N-acetyl-beta-D-
poly(ribitol-phosphate) beta-glucosyltransferase (EC 2.4.1.53)
poly(ribitol-phosphate) beta-glucosyltransferase. EC 2.4.1.53.. 4-O-[(D-ribitylphospho)(n)-D-ribitylphospho-(2R)-glycerylphospho]-N-
poly(ribitol-phosphate) beta-N-acetylglucosaminyltransferase (EC 2.4.1.355)
poly(ribitol-phosphate) beta-N-acetylglucosaminyltransferase. EC 2.4.1.355.. 4-O-[(D-ribitylphospho)(n)-di{(2R)-glycerylphospho}]-N-acetyl-beta-D-
poly[(R)-3-hydroxyalkanoate] polymerase (EC 2.3.1.304)
poly[(R)-3-hydroxyalkanoate] polymerase. EC 2.3.1.304.. [(R)-3-hydroxyalkanoate](n) + a (3R)-3-hydroxyacyl-CoA = [(R)-3-
polyamine oxidase (propane-1,3-diamine-forming) (EC 1.5.3.14)
polyamine oxidase (propane-1,3-diamine-forming). EC 1.5.3.14.. spermidine + O2 + H2O = 4-aminobutanal + propane-1,3-diamine + H2O2.
polyenoic fatty acid isomerase (EC 5.3.3.13)
polyenoic fatty acid isomerase. EC 5.3.3.13.. (5Z,8Z,11Z,14Z,17Z)-eicosapentaenoate = (5Z,7E,9E,14Z,17Z)-
polygalacturonate 4-alpha-galacturonosyltransferase (EC 2.4.1.43)
polygalacturonate 4-alpha-galacturonosyltransferase. EC 2.4.1.43.. [(1->4)-alpha-D-galacturonosyl](n) + UDP-alpha-D-galacturonate = [(1->4)-
polymannosyl GlcNAc-diphospho-ditrans,octacis-undecaprenol 2,3-alpha- (EC 2.4.1.371)
polymannosyl GlcNAc-diphospho-ditrans,octacis-undecaprenol 2,3-alpha-. EC 2.4.1.371.. (1) [alpha-D-Man-(1->3)-alpha-D-Man-(1->3)-alpha-D-Man-(1->2)-alpha-D-
polymannosyl GlcNAc-diphospho-ditrans,octacis-undecaprenol kinase (EC 2.7.1.181)
polymannosyl GlcNAc-diphospho-ditrans,octacis-undecaprenol kinase. EC 2.7.1.181.. alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-[alpha-D-Man-(1->3)-alpha-D-Man-
polymannuronate hydrolase (EC 3.2.1.121)
polymannuronate hydrolase. EC 3.2.1.121.. Endohydrolysis of the D-mannuronide linkages of polymannuronate.
polyneuridine aldehyde synthase (EC 1.14.19.81)
polyneuridine aldehyde synthase. EC 1.14.19.81.. (19E)-geissoschizine + reduced [NADPH--hemoprotein reductase] + O2 =
polyneuridine-aldehyde esterase (EC 3.1.1.78)
polyneuridine-aldehyde esterase. EC 3.1.1.78.. polyneuridine aldehyde + H2O = 16-epivellosimine + methanol + CO2.
polynucleotide 3'-phosphatase (EC 3.1.3.32)
polynucleotide 3'-phosphatase. EC 3.1.3.32.. a 3'end (2'-deoxyribonucleotide 3'-phosphate)-DNA + H2O = a 3'-end
polynucleotide 5'-hydroxyl-kinase (EC 2.7.1.78)
polynucleotide 5'-hydroxyl-kinase. EC 2.7.1.78.. a 5'-end dephospho-2'-deoxyribonucleoside-DNA + ATP = a 5'-end
polynucleotide 5'-phosphatase (EC 3.1.3.33)
polynucleotide 5'-phosphatase. EC 3.1.3.33.. (1) a 5'-end 5'-phospho-ribonucleoside-RNA + H2O = a 5'-end dephospho-
polynucleotide adenylyltransferase (EC 2.7.7.19)
polynucleotide adenylyltransferase. EC 2.7.7.19.. RNA(n) + ATP = RNA(n)-3'-adenine ribonucleotide + diphosphate.
polypeptide N-acetylgalactosaminyltransferase (EC 2.4.1.41)
polypeptide N-acetylgalactosaminyltransferase. EC 2.4.1.41.. (1) L-seryl-[protein] + UDP-N-acetyl-alpha-D-galactosamine = a 3-O-
polyphosphate--glucose phosphotransferase (EC 2.7.1.63)
polyphosphate--glucose phosphotransferase. EC 2.7.1.63.. [phosphate](n) + D-glucose = [phosphate](n-1) + D-glucose 6-phosphate +
polyporic acid monooxygenase (EC 1.14.14.196)
polyporic acid monooxygenase. EC 1.14.14.196.. polyporic acid + reduced [NADPH--hemoprotein reductase] + O2 =
polyporic acid synthase (EC 6.4.1.11)
polyporic acid synthase. EC 6.4.1.11.. 2 3-phenylpyruvate + 2 ATP = polyporic acid + 2 AMP + 2 diphosphate +
polyporopepsin (EC 3.4.23.29)
polyporopepsin. EC 3.4.23.29.. Milk clotting activity, broad specificity, but fails to cleave
polyprenal reductase (EC 1.3.1.94)
polyprenal reductase. EC 1.3.1.94.. a di-trans,poly-cis-dolichal + NADP(+) = a di-trans,poly-cis-polyprenal +
polyprenol dehydrogenase [NAD(P)H] (EC 1.1.1.441)
polyprenol dehydrogenase [NAD(P)H]. EC 1.1.1.441.. (1) a di-trans,poly-cis-polyprenol + NAD(+) = a di-trans,poly-
polyprenyldihydroxybenzoate methyltransferase (EC 2.1.1.114)
polyprenyldihydroxybenzoate methyltransferase. EC 2.1.1.114.. a 3,4-dihydroxy-5-(all-trans-polyprenyl)benzoate + S-adenosyl-L-
polyribonucleotide nucleotidyltransferase (EC 2.7.7.8)
polyribonucleotide nucleotidyltransferase. EC 2.7.7.8.. RNA(n+1) + phosphate = RNA(n) + a ribonucleoside 5'-diphosphate.
polysaccharide O-methyltransferase (EC 2.1.1.18)
polysaccharide O-methyltransferase. EC 2.1.1.18.. S-adenosyl-L-methionine + a (1->4)-alpha-D-glucooligosaccharide =
polysialic-acid O-acetyltransferase (EC 2.3.1.136)
polysialic-acid O-acetyltransferase. EC 2.3.1.136.. (1) [N-acetyl-alpha-D-neuraminosyl-(2->8)](n) + n acetyl-CoA =
polyvinyl alcohol dehydrogenase (cytochrome) (EC 1.1.2.6)
polyvinyl alcohol dehydrogenase (cytochrome). EC 1.1.2.6.. a polyvinyl alcohol + 2n Fe(III)-[cytochrome c] = an oxidized polyvinyl
polyvinyl-alcohol oxidase (EC 1.1.3.30)
polyvinyl-alcohol oxidase. EC 1.1.3.30.. a polyvinyl alcohol + n O2 = an oxidized polyvinyl alcohol + n H2O2.
porphobilinogen synthase (EC 4.2.1.24)
porphobilinogen synthase. EC 4.2.1.24.. 2 5-aminolevulinate = porphobilinogen + 2 H2O + H(+).
PqqA peptide cyclase (EC 1.21.98.4)
PqqA peptide cyclase. EC 1.21.98.4.. [PQQ precursor protein] + S-adenosyl-L-methionine = E-Y cross-linked-[PQQ
pre-alpha-onocerin synthase (EC 5.4.99.65)
pre-alpha-onocerin synthase. EC 5.4.99.65.. (3S,22S)-2,3:22,23-diepoxysqualene = pre-alpha-onocerin.
pre-mycofactocin synthase (EC 1.4.3.26)
pre-mycofactocin synthase. EC 1.4.3.26.. 3-amino-5-[(4-hydroxyphenyl)methyl]-4,4-dimethyl-2-pyrrolidin-2-one +
pre-sodorifen synthase (EC 2.1.1.363)
pre-sodorifen synthase. EC 2.1.1.363.. (2E,6E)-farnesyl diphosphate + S-adenosyl-L-methionine = pre-sodorifen
precondylocarpine acetate reductase (EC 1.3.1.128)
precondylocarpine acetate reductase. EC 1.3.1.128.. dihydroprecondylocarpine acetate + NADP(+) = precondylocarpine acetate +
precondylocarpine acetate synthase (EC 1.21.3.11)
precondylocarpine acetate synthase. EC 1.21.3.11.. O-acetyl-15alpha-stemmadenine + O2 = precondylocarpine acetate + H2O2.
precorrin-2 C(20)-methyltransferase (EC 2.1.1.130)
precorrin-2 C(20)-methyltransferase. EC 2.1.1.130.. precorrin-2 + S-adenosyl-L-methionine = precorrin-3A + S-adenosyl-L-
precorrin-2 dehydrogenase (EC 1.3.1.76)
precorrin-2 dehydrogenase. EC 1.3.1.76.. precorrin-2 + NAD(+) = sirohydrochlorin + NADH + 2 H(+).
precorrin-3B C(17)-methyltransferase (EC 2.1.1.131)
precorrin-3B C(17)-methyltransferase. EC 2.1.1.131.. precorrin-3B + S-adenosyl-L-methionine = precorrin-4 + S-adenosyl-L-
precorrin-3B synthase (EC 1.14.13.83)
precorrin-3B synthase. EC 1.14.13.83.. precorrin-3A + NADH + O2 + 2 H(+) = precorrin-3B + NAD(+) + H2O.
precorrin-4 C(11)-methyltransferase (EC 2.1.1.133)
precorrin-4 C(11)-methyltransferase. EC 2.1.1.133.. precorrin-4 + S-adenosyl-L-methionine = precorrin-5 + S-adenosyl-L-
precorrin-6A reductase (EC 1.3.1.54)
precorrin-6A reductase. EC 1.3.1.54.. precorrin-6B + NADP(+) = precorrin-6A + NADPH + 2 H(+).