The Enzyme Database

Table of Contents

The enzymes in this section of the database are organized as you would find them in the Enzyme-Nomenclature book. Click [+] to expand, and [–] to collapse, any section. Clicking on a heading will open popup window with information on that class, subclass or sub-subclass.

For a fully expanded list of the classes, subclasses and sub-subclasses, click here

[+subclass]. [+sub-subclass]. [+serial]

EC 1 []   
    EC 1.1  [+]      
    EC 1.2  [+]      
    EC 1.3  []      
        EC 1.3.1       []    With NAD+ or NADP+ as acceptor 
                EC 1.3.1.1                      dihydropyrimidine dehydrogenase (NAD+) 
                EC 1.3.1.2                      dihydropyrimidine dehydrogenase (NADP+) 
                EC 1.3.1.3                      Δ4-3-oxosteroid 5β-reductase 
                EC 1.3.1.4                      EC 1.3.1.4, cortisone α-reductase, transferred to EC 1.3.1.22, 3-oxo-5α-steroid 4-dehydrogenase (NADP+) 
                EC 1.3.1.5                      cucurbitacin Δ23-reductase 
                EC 1.3.1.6                      fumarate reductase (NADH) 
                EC 1.3.1.7                      meso-tartrate dehydrogenase 
                EC 1.3.1.8                      acyl-CoA dehydrogenase (NADP+) 
                EC 1.3.1.9                      enoyl-[acyl-carrier-protein] reductase (NADH) 
                EC 1.3.1.10                      enoyl-[acyl-carrier-protein] reductase (NADPH, Si-specific) 
                EC 1.3.1.11                      2-coumarate reductase 
                EC 1.3.1.12                      prephenate dehydrogenase 
                EC 1.3.1.13                      prephenate dehydrogenase (NADP+) 
                EC 1.3.1.14                      dihydroorotate dehydrogenase (NAD+) 
                EC 1.3.1.15                      dihydroorotate dehydrogenase (NADP+) 
                EC 1.3.1.16                      β-nitroacrylate reductase 
                EC 1.3.1.17                      3-methyleneoxindole reductase 
                EC 1.3.1.18                      kynurenate-7,8-dihydrodiol dehydrogenase 
                EC 1.3.1.19                      cis-1,2-dihydrobenzene-1,2-diol dehydrogenase 
                EC 1.3.1.20                      trans-1,2-dihydrobenzene-1,2-diol dehydrogenase 
                EC 1.3.1.21                      7-dehydrocholesterol reductase 
                EC 1.3.1.22                      3-oxo-5α-steroid 4-dehydrogenase (NADP+) 
                EC 1.3.1.23                       cholestenone β-reductase. The enzyme is identical to EC 1.3.1.3, Δ4-3-oxosteroid 5β-reductase 
                EC 1.3.1.24                      biliverdin reductase 
                EC 1.3.1.25                      1,6-dihydroxycyclohexa-2,4-diene-1-carboxylate dehydrogenase 
                EC 1.3.1.26                      dihydrodipicolinate reductase. Now EC 1.17.1.8, 4-hydroxy-tetrahydrodipicolinate reductase. 
                EC 1.3.1.27                      2-hexadecenal reductase 
                EC 1.3.1.28                      2,3-dihydro-2,3-dihydroxybenzoate dehydrogenase 
                EC 1.3.1.29                      cis-1,2-dihydro-1,2-dihydroxynaphthalene dehydrogenase 
                EC 1.3.1.30                      EC 1.3.1.30, progesterone 5α-reductase, transferred to EC 1.3.1.22, 3-oxo-5α-steroid 4-dehydrogenase (NADP+). 
                EC 1.3.1.31                      2-enoate reductase 
                EC 1.3.1.32                      maleylacetate reductase 
                EC 1.3.1.33                      protochlorophyllide reductase 
                EC 1.3.1.34                      2,4-dienoyl-CoA reductase (NADPH) 
                EC 1.3.1.35                      phosphatidylcholine desaturase. Now EC 1.14.19.22, microsomal oleoyl-lipid 12-desaturase 
                EC 1.3.1.36                      geissoschizine dehydrogenase 
                EC 1.3.1.37                      cis-2-enoyl-CoA reductase (NADPH) 
                EC 1.3.1.38                      trans-2-enoyl-CoA reductase (NADPH) 
                EC 1.3.1.39                      enoyl-[acyl-carrier-protein] reductase (NADPH, Re-specific) 
                EC 1.3.1.40                      2-hydroxy-6-oxo-6-phenylhexa-2,4-dienoate reductase 
                EC 1.3.1.41                      xanthommatin reductase 
                EC 1.3.1.42                      12-oxophytodienoate reductase 
                EC 1.3.1.43                      arogenate dehydrogenase 
                EC 1.3.1.44                      trans-2-enoyl-CoA reductase (NAD+) 
                EC 1.3.1.45                      2′-hydroxyisoflavone reductase 
                EC 1.3.1.46                      biochanin-A reductase 
                EC 1.3.1.47                      α-santonin 1,2-reductase 
                EC 1.3.1.48                      13,14-dehydro-15-oxoprostaglandin 13-reductase 
                EC 1.3.1.49                      cis-3,4-dihydrophenanthrene-3,4-diol dehydrogenase 
                EC 1.3.1.50                       tetrahydroxynaphthalene reductase. Now EC 1.1.1.252 tetrahydroxynaphthalene reductase 
                EC 1.3.1.51                      2′-hydroxydaidzein reductase 
                EC 1.3.1.52                      2-methyl-branched-chain-enoyl-CoA reductase. Now EC 1.3.8.5, 2-methyl-branched-chain-enoyl-CoA reductase 
                EC 1.3.1.53                      (3S,4R)-3,4-dihydroxycyclohexa-1,5-diene-1,4-dicarboxylate dehydrogenase 
                EC 1.3.1.54                      precorrin-6A reductase 
                EC 1.3.1.55                       cis-1,2-dihydroxycyclohexa-3,5-diene-1-carboxylate dehydrogenase. Enzyme is identical to EC 1.3.1.25, 1,6-dihydroxycyclohexa-2,4-diene-1-carboxylate dehydrogenase 
                EC 1.3.1.56                      cis-2,3-dihydrobiphenyl-2,3-diol dehydrogenase 
                EC 1.3.1.57                      phloroglucinol reductase 
                EC 1.3.1.58                      2,3-dihydroxy-2,3-dihydro-p-cumate dehydrogenase 
                EC 1.3.1.59                      1,2-dihydroxy-3-methyl-1,2-dihydrobenzoate dehydrogenase. No evidence in the paper cited that the enzyme exists 
                EC 1.3.1.60                      dibenzothiophene dihydrodiol dehydrogenase 
                EC 1.3.1.61                      terephthalate 1,2-cis-dihydrodiol dehydrogenase. Enzyme is identical to EC 1.3.1.53, (3S,4R)-3,4-dihydroxycyclohexa-1,5-diene-1,4-dicarboxylate dehydrogenase 
                EC 1.3.1.62                      pimeloyl-CoA dehydrogenase 
                EC 1.3.1.63                      2,4-dichlorobenzoyl-CoA reductase. Now EC 1.21.1.2, 2,4-dichlorobenzoyl-CoA reductase 
                EC 1.3.1.64                      phthalate 4,5-cis-dihydrodiol dehydrogenase 
                EC 1.3.1.65                      5,6-dihydroxy-3-methyl-2-oxo-1,2,5,6-tetrahydroquinoline dehydrogenase 
                EC 1.3.1.66                      cis-dihydroethylcatechol dehydrogenase 
                EC 1.3.1.67                      cis-1,2-dihydroxy-4-methylcyclohexa-3,5-diene-1-carboxylate dehydrogenase 
                EC 1.3.1.68                      1,2-dihydroxy-6-methylcyclohexa-3,5-dienecarboxylate dehydrogenase 
                EC 1.3.1.69                      zeatin reductase 
                EC 1.3.1.70                      Δ14-sterol reductase 
                EC 1.3.1.71                      Δ24(241)-sterol reductase 
                EC 1.3.1.72                      Δ24-sterol reductase 
                EC 1.3.1.73                      1,2-dihydrovomilenine reductase 
                EC 1.3.1.74                      2-alkenal reductase [NAD(P)+] 
                EC 1.3.1.75                      3,8-divinyl protochlorophyllide a 8-vinyl-reductase (NADPH) 
                EC 1.3.1.76                      precorrin-2 dehydrogenase 
                EC 1.3.1.77                      anthocyanidin reductase [(2R,3R)-flavan-3-ol-forming] 
                EC 1.3.1.78                      arogenate dehydrogenase (NADP+) 
                EC 1.3.1.79                      arogenate dehydrogenase [NAD(P)+] 
                EC 1.3.1.80                      red chlorophyll catabolite reductase. Now classified as EC 1.3.7.12, red chlorophyll catabolite reductase 
                EC 1.3.1.81                      (+)-pulegone reductase 
                EC 1.3.1.82                      (-)-isopiperitenone reductase 
                EC 1.3.1.83                      geranylgeranyl diphosphate reductase 
                EC 1.3.1.84                      acrylyl-CoA reductase (NADPH) 
                EC 1.3.1.85                      crotonyl-CoA carboxylase/reductase 
                EC 1.3.1.86                      crotonyl-CoA reductase 
                EC 1.3.1.87                      3-(cis-5,6-dihydroxycyclohexa-1,3-dien-1-yl)propanoate dehydrogenase 
                EC 1.3.1.88                      tRNA-dihydrouridine16/17 synthase [NAD(P)+] 
                EC 1.3.1.89                      tRNA-dihydrouridine47 synthase [NAD(P)+] 
                EC 1.3.1.90                      tRNA-dihydrouridine20a/20b synthase [NAD(P)+] 
                EC 1.3.1.91                      tRNA-dihydrouridine20 synthase [NAD(P)+] 
                EC 1.3.1.92                      artemisinic aldehyde Δ11(13)-reductase 
                EC 1.3.1.93                      very-long-chain enoyl-CoA reductase 
                EC 1.3.1.94                      polyprenol reductase 
                EC 1.3.1.95                      acrylyl-CoA reductase (NADH) 
                EC 1.3.1.96                      Botryococcus squalene synthase 
                EC 1.3.1.97                      botryococcene synthase 
                EC 1.3.1.98                      UDP-N-acetylmuramate dehydrogenase 
                EC 1.3.1.99                      iridoid synthase 
                EC 1.3.1.100                      chanoclavine-I aldehyde reductase 
                EC 1.3.1.101                      2,3-bis-O-geranylgeranyl-sn-glycerol 1-phosphate reductase [NAD(P)H] 
                EC 1.3.1.102                      2-alkenal reductase (NADP+) 
                EC 1.3.1.103                      2-haloacrylate reductase 
                EC 1.3.1.104                      enoyl-[acyl-carrier-protein] reductase (NADPH) 
                EC 1.3.1.105                      2-methylene-furan-3-one reductase 
                EC 1.3.1.106                      cobalt-precorrin-6A reductase 
                EC 1.3.1.107                      sanguinarine reductase 
                EC 1.3.1.108                      caffeoyl-CoA reductase 
                EC 1.3.1.109                      butanoyl-CoA dehydrogenase (NAD+, ferredoxin) 
                EC 1.3.1.110                      lactate dehydrogenase (NAD+,ferredoxin) 
                EC 1.3.1.111                      geranylgeranyl-bacteriochlorophyllide a reductase 
                EC 1.3.1.112                      anthocyanidin reductase [(2S)-flavan-3-ol-forming] 
        EC 1.3.2       [+]    With a cytochrome as acceptor 
        EC 1.3.3       [+]    With oxygen as acceptor 
        EC 1.3.4       [+]    With a disulfide as acceptor 
        EC 1.3.5       [+]    With a quinone or related compound as acceptor 
        EC 1.3.7       [+]    With an iron-sulfur protein as acceptor 
        EC 1.3.8       [+]    With a flavin as acceptor 
        EC 1.3.98       [+]    With other, known, physiological acceptors 
        EC 1.3.99       [+]    With unknown physiological acceptors 
    EC 1.4  [+]      
    EC 1.5  [+]      
    EC 1.6  [+]      
    EC 1.7  [+]      
    EC 1.8  [+]      
    EC 1.9  [+]      
    EC 1.10  [+]      
    EC 1.11  [+]      
    EC 1.12  [+]      
    EC 1.13  [+]      
    EC 1.14  [+]      
    EC 1.15  [+]      
    EC 1.16  [+]      
    EC 1.17  [+]      
    EC 1.18  [+]      
    EC 1.19  [+]      
    EC 1.20  [+]      
    EC 1.21  [+]      
    EC 1.22  [+]      
    EC 1.23  [+]      
    EC 1.97  [+]      
    EC 1.98  [+]      
    EC 1.99  [+]      
EC 2 [+]   
EC 3 [+]   
EC 4 [+]   
EC 5 [+]   
EC 6 [+]   


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