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 2 []   
    EC 2.1  [+]      
    EC 2.2  [+]      
    EC 2.3  [+]      
    EC 2.4  [+]      
    EC 2.5  []      
        EC 2.5.1       []    Transferring alkyl or aryl groups, other than methyl groups (only sub-subclass identified to date) 
                EC 2.5.1.1                      dimethylallyltranstransferase 
                EC 2.5.1.2                      thiamine pyridinylase 
                EC 2.5.1.3                      thiamine phosphate synthase 
                EC 2.5.1.4                      adenosylmethionine cyclotransferase 
                EC 2.5.1.5                      galactose-6-sulfurylase 
                EC 2.5.1.6                      methionine adenosyltransferase 
                EC 2.5.1.7                      UDP-N-acetylglucosamine 1-carboxyvinyltransferase 
                EC 2.5.1.8                      tRNA isopentenyltransferase. As it is now known that the substrate is dimethylallyl diphosphate, the enzyme has been transferred to EC 2.5.1.75, tRNA dimethylallyltransferase 
                EC 2.5.1.9                      riboflavin synthase 
                EC 2.5.1.10                      (2E,6E)-farnesyl diphosphate synthase 
                EC 2.5.1.11                      trans-octaprenyltranstransferase. Now covered by EC 2.5.1.84 (all-trans-nonaprenyl-diphosphate synthase [geranyl-diphosphate specific]) and EC 2.5.1.85 (all-trans-nonaprenyl diphosphate synthase [geranylgeranyl-diphosphate specific]) 
                EC 2.5.1.12                       glutathione S-alkyltransferase. Now included with EC 2.5.1.18 glutathione transferase 
                EC 2.5.1.13                       glutathione S-aryltransferase. Now included with EC 2.5.1.18 glutathione transferase 
                EC 2.5.1.14                       glutathione S-aralkyltransferase. Now included with EC 2.5.1.18 glutathione transferase 
                EC 2.5.1.15                      dihydropteroate synthase 
                EC 2.5.1.16                      spermidine synthase 
                EC 2.5.1.17                      corrinoid adenosyltransferase 
                EC 2.5.1.18                      glutathione transferase 
                EC 2.5.1.19                      3-phosphoshikimate 1-carboxyvinyltransferase 
                EC 2.5.1.20                      rubber cis-polyprenylcistransferase 
                EC 2.5.1.21                      squalene synthase 
                EC 2.5.1.22                      spermine synthase 
                EC 2.5.1.23                      sym-norspermidine synthase 
                EC 2.5.1.24                      discadenine synthase 
                EC 2.5.1.25                      tRNA-uridine aminocarboxypropyltransferase 
                EC 2.5.1.26                      alkylglycerone-phosphate synthase 
                EC 2.5.1.27                      adenylate dimethylallyltransferase 
                EC 2.5.1.28                      dimethylallylcistransferase 
                EC 2.5.1.29                      geranylgeranyl diphosphate synthase 
                EC 2.5.1.30                      heptaprenyl diphosphate synthase 
                EC 2.5.1.31                      ditrans,polycis-undecaprenyl-diphosphate synthase [(2E,6E)-farnesyl-diphosphate specific] 
                EC 2.5.1.32                      15-cis-phytoene synthase 
                EC 2.5.1.33                      trans-pentaprenyltranstransferase. Now covered by EC 2.5.1.82 (hexaprenyl diphosphate synthase [geranylgeranyl-diphosphate specific]) and EC 2.5.1.83 (hexaprenyl-diphosphate synthase [(2E,6E)-farnesyl-diphosphate specific]) 
                EC 2.5.1.34                      4-dimethylallyltryptophan synthase 
                EC 2.5.1.35                      aspulvinone dimethylallyltransferase 
                EC 2.5.1.36                      trihydroxypterocarpan dimethylallyltransferase 
                EC 2.5.1.37                      leukotriene-C4 synthase. Now EC 4.4.1.20, leukotriene-C4 synthase. The enzyme was incorrectly classified as a transferase 
                EC 2.5.1.38                      isonocardicin synthase 
                EC 2.5.1.39                      4-hydroxybenzoate polyprenyltransferase 
                EC 2.5.1.40                      aristolochene synthase. Now EC 4.2.3.9, aristolochene synthase 
                EC 2.5.1.41                      phosphoglycerol geranylgeranyltransferase 
                EC 2.5.1.42                      geranylgeranylglycerol-phosphate geranylgeranyltransferase 
                EC 2.5.1.43                      nicotianamine synthase 
                EC 2.5.1.44                      homospermidine synthase 
                EC 2.5.1.45                      homospermidine synthase (spermidine-specific) 
                EC 2.5.1.46                      deoxyhypusine synthase 
                EC 2.5.1.47                      cysteine synthase 
                EC 2.5.1.48                      cystathionine γ-synthase 
                EC 2.5.1.49                      O-acetylhomoserine aminocarboxypropyltransferase 
                EC 2.5.1.50                      zeatin 9-aminocarboxyethyltransferase 
                EC 2.5.1.51                      β-pyrazolylalanine synthase 
                EC 2.5.1.52                      L-mimosine synthase 
                EC 2.5.1.53                      uracilylalanine synthase 
                EC 2.5.1.54                      3-deoxy-7-phosphoheptulonate synthase 
                EC 2.5.1.55                      3-deoxy-8-phosphooctulonate synthase 
                EC 2.5.1.56                      N-acetylneuraminate synthase 
                EC 2.5.1.57                      N-acylneuraminate-9-phosphate synthase 
                EC 2.5.1.58                      protein farnesyltransferase 
                EC 2.5.1.59                      protein geranylgeranyltransferase type I 
                EC 2.5.1.60                      protein geranylgeranyltransferase type II 
                EC 2.5.1.61                      hydroxymethylbilane synthase 
                EC 2.5.1.62                      chlorophyll synthase 
                EC 2.5.1.63                      adenosyl-fluoride synthase 
                EC 2.5.1.64                      2-succinyl-6-hydroxy-2,4-cyclohexadiene-1-carboxylate synthase. The reaction that was attributed to this enzyme is now known to be catalysed by two separate enzymes: EC 2.2.1.9 (2-succinyl-5-enolpyruvyl-6-hydroxy-3-cyclohexene-1-carboxylic-acid synthase) and EC 4.2.99.20 (2-succinyl-6-hydroxy-2,4-cyclohexadiene-1-carboxylate synthase) 
                EC 2.5.1.65                      O-phosphoserine sulfhydrylase 
                EC 2.5.1.66                      N2-(2-carboxyethyl)arginine synthase 
                EC 2.5.1.67                      chrysanthemyl diphosphate synthase 
                EC 2.5.1.68                      (2Z,6E)-farnesyl diphosphate synthase 
                EC 2.5.1.69                      lavandulyl diphosphate synthase 
                EC 2.5.1.70                      naringenin 8-dimethylallyltransferase 
                EC 2.5.1.71                      leachianone-G 2′′-dimethylallyltransferase 
                EC 2.5.1.72                      quinolinate synthase 
                EC 2.5.1.73                      O-phospho-L-seryl-tRNA:Cys-tRNA synthase 
                EC 2.5.1.74                      1,4-dihydroxy-2-naphthoate polyprenyltransferase 
                EC 2.5.1.75                      tRNA dimethylallyltransferase 
                EC 2.5.1.76                      cysteate synthase 
                EC 2.5.1.77                      7,8-didemethyl-8-hydroxy-5-deazariboflavin synthase. Now EC 2.5.1.147, 5-amino-6-(D-ribitylamino)uracil—L-tyrosine 4-methylphenol transferase and EC 4.3.1.32, 7,8-didemethyl-8-hydroxy-5-deazariboflavin synthase. 
                EC 2.5.1.78                      6,7-dimethyl-8-ribityllumazine synthase 
                EC 2.5.1.79                      thermospermine synthase 
                EC 2.5.1.80                      7-dimethylallyltryptophan synthase 
                EC 2.5.1.81                      geranylfarnesyl diphosphate synthase 
                EC 2.5.1.82                      hexaprenyl diphosphate synthase [geranylgeranyl-diphosphate specific] 
                EC 2.5.1.83                      hexaprenyl diphosphate synthase [(2E,6E)-farnesyl-diphosphate specific] 
                EC 2.5.1.84                      all-trans-nonaprenyl diphosphate synthase [geranyl-diphosphate specific] 
                EC 2.5.1.85                      all-trans-nonaprenyl diphosphate synthase [geranylgeranyl-diphosphate specific] 
                EC 2.5.1.86                      trans,polycis-decaprenyl diphosphate synthase 
                EC 2.5.1.87                      ditrans,polycis-polyprenyl diphosphate synthase [(2E,6E)-farnesyl diphosphate specific] 
                EC 2.5.1.88                      trans,polycis-polyprenyl diphosphate synthase [(2Z,6E)-farnesyl diphosphate specific] 
                EC 2.5.1.89                      tritrans,polycis-undecaprenyl diphosphate synthase [geranylgeranyl-diphosphate specific] 
                EC 2.5.1.90                      all-trans-octaprenyl-diphosphate synthase 
                EC 2.5.1.91                      all-trans-decaprenyl-diphosphate synthase 
                EC 2.5.1.92                      (2Z,6Z)-farnesyl diphosphate synthase 
                EC 2.5.1.93                      4-hydroxybenzoate geranyltransferase 
                EC 2.5.1.94                      adenosyl-chloride synthase 
                EC 2.5.1.95                      xanthan ketal pyruvate transferase 
                EC 2.5.1.96                      4,4′-diapophytoene synthase 
                EC 2.5.1.97                      pseudaminic acid synthase 
                EC 2.5.1.98                      Rhizobium leguminosarum exopolysaccharide glucosyl ketal-pyruvate-transferase 
                EC 2.5.1.99                       all-trans-phytoene synthase. The activity was an artifact caused by photoisomerization of the product of EC 2.5.1.32, 15-cis-phytoene synthase. 
                EC 2.5.1.100                      fumigaclavine A dimethylallyltransferase 
                EC 2.5.1.101                      N,N′-diacetyllegionaminate synthase 
                EC 2.5.1.102                      geranyl-pyrophosphate—olivetolic acid geranyltransferase 
                EC 2.5.1.103                      presqualene diphosphate synthase 
                EC 2.5.1.104                      N1-aminopropylagmatine synthase 
                EC 2.5.1.105                      7,8-dihydropterin-6-yl-methyl-4-(β-D-ribofuranosyl)aminobenzene 5′-phosphate synthase 
                EC 2.5.1.106                      tryprostatin B synthase 
                EC 2.5.1.107                      verruculogen prenyltransferase 
                EC 2.5.1.108                      2-(3-amino-3-carboxypropyl)histidine synthase 
                EC 2.5.1.109                      brevianamide F prenyltransferase (deoxybrevianamide E-forming) 
                EC 2.5.1.110                      12α,13α-dihydroxyfumitremorgin C prenyltransferase 
                EC 2.5.1.111                      4-hydroxyphenylpyruvate 3-dimethylallyltransferase 
                EC 2.5.1.112                      adenylate dimethylallyltransferase (ADP/ATP-dependent) 
                EC 2.5.1.113                      [CysO sulfur-carrier protein]-thiocarboxylate-dependent cysteine synthase 
                EC 2.5.1.114                      tRNAPhe (4-demethylwyosine37-C7) aminocarboxypropyltransferase 
                EC 2.5.1.115                      homogentisate phytyltransferase 
                EC 2.5.1.116                      homogentisate geranylgeranyltransferase 
                EC 2.5.1.117                      homogentisate solanesyltransferase 
                EC 2.5.1.118                      β-(isoxazolin-5-on-2-yl)-L-alanine synthase 
                EC 2.5.1.119                      β-(isoxazolin-5-on-4-yl)-L-alanine synthase 
                EC 2.5.1.120                      aminodeoxyfutalosine synthase 
                EC 2.5.1.121                      5,10-dihydrophenazine-1-carboxylate 9-dimethylallyltransferase  
                EC 2.5.1.122                      4-O-dimethylallyl-L-tyrosine synthase 
                EC 2.5.1.123                      flaviolin linalyltransferase 
                EC 2.5.1.124                      6-linalyl-2-O,3-dimethylflaviolin synthase 
                EC 2.5.1.125                      7-geranyloxy-5-hydroxy-2-methoxy-3-methylnaphthalene-1,4-dione synthase 
                EC 2.5.1.126                      norspermine synthase 
                EC 2.5.1.127                      caldopentamine synthase 
                EC 2.5.1.128                      N4-bis(aminopropyl)spermidine synthase 
                EC 2.5.1.129                      flavin prenyltransferase 
                EC 2.5.1.130                      2-carboxy-1,4-naphthoquinone phytyltransferase 
                EC 2.5.1.131                      (4-{4-[2-(γ-L-glutamylamino)ethyl]phenoxymethyl}furan-2-yl)methanamine synthase 
                EC 2.5.1.132                      3-deoxy-D-glycero-D-galacto-nonulopyranosonate 9-phosphate synthase 
                EC 2.5.1.133                      bacteriochlorophyll a synthase 
                EC 2.5.1.134                      cystathionine β-synthase (O-acetyl-L-serine) 
                EC 2.5.1.135                      validamine 7-phosphate valienyltransferase 
                EC 2.5.1.136                      2-acylphloroglucinol 4-prenyltransferase 
                EC 2.5.1.137                      2-acyl-4-prenylphloroglucinol 6-prenyltransferase 
                EC 2.5.1.138                      coumarin 8-geranyltransferase 
                EC 2.5.1.139                      umbelliferone 6-dimethylallyltransferase 
                EC 2.5.1.140                      N-(2-amino-2-carboxyethyl)-L-glutamate synthase 
                EC 2.5.1.141                      heme o synthase 
                EC 2.5.1.142                      nerylneryl diphosphate synthase 
                EC 2.5.1.143                      pyridinium-3,5-biscarboxylic acid mononucleotide synthase 
                EC 2.5.1.144                      S-sulfo-L-cysteine synthase (O-acetyl-L-serine-dependent) 
                EC 2.5.1.145                      phosphatidylglycerol—prolipoprotein diacylglyceryl transferase 
                EC 2.5.1.146                      3-geranyl-3-[(Z)-2-isocyanoethenyl]indole synthase 
                EC 2.5.1.147                      5-amino-6-(D-ribitylamino)uracil—L-tyrosine 4-hydroxyphenyl transferase 
    EC 2.6  [+]      
    EC 2.7  [+]      
    EC 2.8  [+]      
    EC 2.9  [+]      
    EC 2.10  [+]      
EC 3 [+]   
EC 4 [+]   
EC 5 [+]   
EC 6 [+]   
EC 7 [+]   


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