1. Oxidoreductases

 2. Transferases

   2.1  Transferring one-carbon groups

   2.2  Transferring aldehyde or ketonic groups

   2.3  Acyltransferases

   2.4  Glycosyltransferases

   2.5  Transferring alkyl or aryl groups, other than methyl groups

   2.6  Transferring nitrogenous groups

   2.7  Transferring phosphorus-containing groups

     2.7.1  Phosphotransferases with an alcohol group as acceptor

       2.7.1.1  hexokinase

       2.7.1.2  glucokinase

       2.7.1.3  ketohexokinase

       2.7.1.4  fructokinase

       2.7.1.5  rhamnulokinase

       2.7.1.6  galactokinase

       2.7.1.7  mannokinase

       2.7.1.8  glucosamine kinase

       2.7.1.10  phosphoglucokinase

       2.7.1.11  6-phosphofructokinase

       2.7.1.12  gluconokinase

       2.7.1.13  dehydrogluconokinase

       2.7.1.14  sedoheptulokinase

       2.7.1.15  ribokinase

       2.7.1.16  ribulokinase

       2.7.1.17  xylulokinase

       2.7.1.18  phosphoribokinase

       2.7.1.19  phosphoribulokinase

       2.7.1.20  adenosine kinase

       2.7.1.21  thymidine kinase

       2.7.1.22  ribosylnicotinamide kinase

       2.7.1.23  NAD+ kinase

       2.7.1.24  dephospho-CoA kinase

       2.7.1.25  adenylyl-sulfate kinase

       2.7.1.26  riboflavin kinase

       2.7.1.27  erythritol kinase

       2.7.1.28  triokinase

       2.7.1.29  glycerone kinase

       2.7.1.30  glycerol kinase

       2.7.1.31  glycerate 3-kinase

       2.7.1.32  choline kinase

       2.7.1.33  pantothenate kinase

       2.7.1.34  pantetheine kinase

       2.7.1.35  pyridoxal kinase

       2.7.1.36  mevalonate kinase

       2.7.1.39  homoserine kinase

       2.7.1.40  pyruvate kinase

       2.7.1.41  glucose-1-phosphate phosphodismutase

       2.7.1.42  riboflavin phosphotransferase

       2.7.1.43  glucuronokinase

       2.7.1.44  galacturonokinase

       2.7.1.45  2-dehydro-3-deoxygluconokinase

       2.7.1.46  L-arabinokinase

       2.7.1.47  D-ribulokinase

       2.7.1.48  uridine kinase

       2.7.1.49  hydroxymethylpyrimidine kinase

       2.7.1.50  hydroxyethylthiazole kinase

       2.7.1.51  L-fuculokinase

       2.7.1.52  fucokinase

       2.7.1.53  L-xylulokinase

       2.7.1.54  D-arabinokinase

       2.7.1.55  allose kinase

       2.7.1.56  1-phosphofructokinase

       2.7.1.58  2-dehydro-3-deoxygalactonokinase

       2.7.1.59  N-acetylglucosamine kinase

       2.7.1.60  N-acylmannosamine kinase

       2.7.1.61  acyl-phosphate---hexose phosphotransferase

       2.7.1.62  phosphoramidate---hexose phosphotransferase

       2.7.1.63  polyphosphate---glucose phosphotransferase

       2.7.1.64  inositol 3-kinase

       2.7.1.65  scyllo-inosamine 4-kinase

       2.7.1.66  undecaprenol kinase

       2.7.1.67  1-phosphatidylinositol 4-kinase

       2.7.1.68  1-phosphatidylinositol-4-phosphate 5-kinase

       2.7.1.69  protein-Npi-phosphohistidine---sugar phosphotransferase

       2.7.1.71  shikimate kinase

       2.7.1.72  streptomycin 6-kinase

       2.7.1.73  inosine kinase

       2.7.1.74  deoxycytidine kinase

       2.7.1.76  2'-deoxyadenosine kinase

       2.7.1.77  nucleoside phosphotransferase

       2.7.1.78  polynucleotide 5'-hydroxyl-kinase

       2.7.1.79  diphosphate---glycerol phosphotransferase

       2.7.1.80  diphosphate---serine phosphotransferase

       2.7.1.81  hydroxylysine kinase

       2.7.1.82  ethanolamine kinase

       2.7.1.83  pseudouridine kinase

       2.7.1.84  alkylglycerone kinase

       2.7.1.85  beta-glucoside kinase

       2.7.1.86  NADH kinase

       2.7.1.87  streptomycin 3''-kinase

       2.7.1.88  dihydrostreptomycin-6-phosphate 3'alpha-kinase

       2.7.1.89  thiamine kinase

       2.7.1.90  diphosphate---fructose-6-phosphate 1-phosphotransferase

       2.7.1.91  sphinganine kinase

       2.7.1.92  5-dehydro-2-deoxygluconokinase

       2.7.1.93  alkylglycerol kinase

       2.7.1.94  acylglycerol kinase

       2.7.1.95  kanamycin kinase

       2.7.1.100  S-methyl-5-thioribose kinase

       2.7.1.101  tagatose kinase

       2.7.1.102  hamamelose kinase

       2.7.1.103  viomycin kinase

       2.7.1.105  6-phosphofructo-2-kinase

       2.7.1.106  glucose-1,6-bisphosphate synthase

       2.7.1.107  diacylglycerol kinase (ATP dependent)

       2.7.1.108  dolichol kinase

       2.7.1.113  deoxyguanosine kinase

       2.7.1.114  AMP---thymidine kinase

       2.7.1.118  ADP---thymidine kinase

       2.7.1.119  hygromycin-B 7''-O-kinase

       2.7.1.121  phosphoenolpyruvate---glycerone phosphotransferase

       2.7.1.122  xylitol kinase

       2.7.1.127  inositol-trisphosphate 3-kinase

       2.7.1.130  tetraacyldisaccharide 4'-kinase

       2.7.1.134  inositol-tetrakisphosphate 1-kinase

       2.7.1.136  macrolide 2'-kinase

       2.7.1.137  phosphatidylinositol 3-kinase

       2.7.1.138  ceramide kinase

       2.7.1.140  inositol-tetrakisphosphate 5-kinase

       2.7.1.142  glycerol-3-phosphate---glucose phosphotransferase

       2.7.1.143  diphosphate-purine nucleoside kinase

       2.7.1.144  tagatose-6-phosphate kinase

       2.7.1.145  deoxynucleoside kinase

       2.7.1.146  ADP-specific phosphofructokinase

       2.7.1.147  ADP-specific glucokinase

       2.7.1.148  4-(cytidine 5'-diphospho)-2-C-methyl-D-erythritol kinase

       2.7.1.149  1-phosphatidylinositol-5-phosphate 4-kinase

       2.7.1.150  1-phosphatidylinositol-3-phosphate 5-kinase

       2.7.1.151  inositol-polyphosphate multikinase

       2.7.1.153  phosphatidylinositol-4,5-bisphosphate 3-kinase

       2.7.1.154  phosphatidylinositol-4-phosphate 3-kinase

       2.7.1.156  adenosylcobinamide kinase

       2.7.1.157  N-acetylgalactosamine kinase

       2.7.1.158  inositol-pentakisphosphate 2-kinase

       2.7.1.159  inositol-1,3,4-trisphosphate 5/6-kinase

       2.7.1.160  2'-phosphotransferase

       2.7.1.161  CTP-dependent riboflavin kinase

       2.7.1.162  N-acetylhexosamine 1-kinase

       2.7.1.163  hygromycin B 4-O-kinase

       2.7.1.164  O-phosphoseryl-tRNASec kinase

       2.7.1.165  glycerate 2-kinase

       2.7.1.166  3-deoxy-D-manno-octulosonic acid kinase

       2.7.1.167  D-glycero-beta-D-manno-heptose-7-phosphate kinase

       2.7.1.168  D-glycero-alpha-D-manno-heptose-7-phosphate kinase

       2.7.1.169  pantoate kinase

       2.7.1.170  anhydro-N-acetylmuramic acid kinase

       2.7.1.171  protein-fructosamine 3-kinase

       2.7.1.172  protein-ribulosamine 3-kinase

       2.7.1.173  nicotinate riboside kinase

       2.7.1.174  diacylglycerol kinase (CTP dependent)

       2.7.1.175  maltokinase

       2.7.1.176  UDP-N-acetylglucosamine kinase

       2.7.1.177  L-threonine kinase

       2.7.1.-  

     2.7.2  Phosphotransferases with a carboxy group as acceptor

     2.7.3  Phosphotransferases with a nitrogenous group as acceptor

     2.7.4  Phosphotransferases with a phosphate group as acceptor

     2.7.6  Diphosphotransferases

     2.7.7  Nucleotidyltransferases

     2.7.8  Transferases for other substituted phosphate groups

     2.7.9  Phosphotransferases with paired acceptors

     2.7.10  Protein-tyrosine kinases

     2.7.11  Protein-serine/threonine kinases

     2.7.12  Dual-specificity kinases (those acting on Ser/Thr and Tyr residues)

     2.7.13  Protein-histidine kinases

     2.7.99  Other protein kinases

     2.7.-  Transferring phosphorus-containing groups

   2.8  Transferring sulfur-containing groups

   2.9  Transferring selenium-containing groups

   2.10  Transferring molybdenum- or tungsten-containing groups

   2.-  

 3. Hydrolases

 4. Lyases

 5. Isomerases

 6. Ligases