Back to the ExPASy molecular biology server home
pageThe following list contains the definitions of enzyme classes, subclasses and sub-subclasses. If you click on one of the following lines, you will get a list of all enzymes in the corresponding classes.
1. -. -.- OXIDOREDUCTASES. 1. 1. -.- ACTING ON THE CH-OH GROUP OF DONORS. 1. 1. 1.- WITH NAD(+) OR NADP(+) AS ACCEPTOR. 1. 1. 2.- WITH A CYTOCHROME AS ACCEPTOR. 1. 1. 3.- WITH OXYGEN AS ACCEPTOR. 1. 1. 4.- WITH A DISULFIDE AS ACCEPTOR. 1. 1. 5.- WITH A QUINONE OR SIMILAR COMPOUND AS ACCEPTOR. 1. 1.99.- WITH OTHER ACCEPTORS. 1. 2. -.- ACTING ON THE ALDEHYDE OR OXO GROUP OF DONORS. 1. 2. 1.- WITH NAD(+) OR NADP(+) AS ACCEPTOR. 1. 2. 2.- WITH A CYTOCHROME AS ACCEPTOR. 1. 2. 3.- WITH OXYGEN AS ACCEPTOR. 1. 2. 4.- WITH A DISULFIDE AS ACCEPTOR. 1. 2. 7.- WITH AN IRON-SULFUR PROTEIN AS ACCEPTOR. 1. 2.99.- WITH OTHER ACCEPTORS. 1. 3. -.- ACTING ON THE CH-CH GROUP OF DONORS. 1. 3. 1.- WITH NAD(+) OR NADP(+) AS ACCEPTOR. 1. 3. 2.- WITH A CYTOCHROME AS ACCEPTOR. 1. 3. 3.- WITH OXYGEN AS ACCEPTOR. 1. 3. 5.- WITH A QUINONE OR RELATED COMPOUND AS ACCEPTOR. 1. 3. 7.- WITH AN IRON-SULFUR PROTEIN AS ACCEPTOR. 1. 3.99.- WITH OTHER ACCEPTORS. 1. 4. -.- ACTING ON THE CH-NH(2) GROUP OF DONORS. 1. 4. 1.- WITH NAD(+) OR NADP(+) AS ACCEPTOR. 1. 4. 2.- WITH A CYTOCHROME AS ACCEPTOR. 1. 4. 3.- WITH OXYGEN AS ACCEPTOR. 1. 4. 4.- WITH A DISULFIDE AS ACCEPTOR. 1. 4. 7.- WITH AN IRON-SULFUR PROTEIN AS ACCEPTOR. 1. 4.99.- WITH OTHER ACCEPTORS. 1. 5. -.- ACTING ON THE CH-NH GROUP OF DONORS. 1. 5. 1.- WITH NAD(+) OR NADP(+) AS ACCEPTOR. 1. 5. 3.- WITH OXYGEN AS ACCEPTOR. 1. 5. 4.- WITH A DISULFIDE AS ACCEPTOR. 1. 5. 5.- WITH A QUINONE OR SIMILAR COMPOUND AS ACCEPTOR. 1. 5.99.- WITH OTHER ACCEPTORS. 1. 6. -.- ACTING ON NADH OR NADPH. 1. 6. 1.- WITH NAD(+) OR NADP(+) AS ACCEPTOR. 1. 6. 2.- WITH A CYTOCHROME AS ACCEPTOR. 1. 6. 4.- WITH A DISULFIDE AS ACCEPTOR. 1. 6. 5.- WITH A QUINONE OR SIMILAR COMPOUND AS ACCEPTOR. 1. 6. 6.- WITH A NITROGENOUS GROUP AS ACCEPTOR. 1. 6. 8.- WITH A FLAVIN AS ACCEPTOR. 1. 6.99.- WITH OTHER ACCEPTORS. 1. 7. -.- ACTING ON OTHER NITROGENOUS COMPOUNDS AS DONORS. 1. 7. 2.- WITH A CYTOCHROME AS ACCEPTOR. 1. 7. 3.- WITH OXYGEN AS ACCEPTOR. 1. 7. 7.- WITH AN IRON-SULFUR PROTEIN AS ACCEPTOR. 1. 7.99.- WITH OTHER ACCEPTORS. 1. 8. -.- ACTING ON A SULFUR GROUP OF DONORS. 1. 8. 1.- WITH NAD(+) OR NADP(+) AS ACCEPTOR. 1. 8. 2.- WITH A CYTOCHROME AS ACCEPTOR. 1. 8. 3.- WITH OXYGEN AS ACCEPTOR. 1. 8. 4.- WITH A DISULFIDE AS ACCEPTOR. 1. 8. 5.- WITH A QUINONE OR SIMILAR COMPOUND AS ACCEPTOR. 1. 8. 7.- WITH AN IRON-SULFUR PROTEIN AS ACCEPTOR. 1. 8.99.- WITH OTHER ACCEPTORS. 1. 9. -.- ACTING ON A HEME GROUP OF DONORS. 1. 9. 3.- WITH OXYGEN AS ACCEPTOR. 1. 9. 6.- WITH A NITROGENOUS GROUP AS ACCEPTOR. 1. 9.99.- WITH OTHER ACCEPTORS. 1.10. -.- ACTING ON DIPHENOLS AND RELATED SUBSTANCES AS DONORS. 1.10. 1.- WITH NAD(+) OR NADP(+) AS ACCEPTOR. 1.10. 2.- WITH A CYTOCHROME AS ACCEPTOR. 1.10. 3.- WITH OXYGEN AS ACCEPTOR. 1.10.99.- WITH OTHER ACCEPTORS. 1.11. -.- ACTING ON A PEROXIDE AS ACCEPOR (PEROXIDASES). 1.12. -.- ACTING ON HYDROGEN AS DONOR. 1.12. 1.- WITH NAD(+) OR NADP(+) AS ACCEPTOR. 1.12. 2.- WITH A CYTOCHROME AS ACCEPTOR. 1.12.99.- WITH OTHER ACCEPTORS. 1.13. -.- ACTING ON SINGLE DONORS WITH INCORPORATION OF MOLECULAR OXYGEN. 1.13.11.- WITH INCORPORATION OF TWO ATOMS OF OXYGEN. 1.13.12.- WITH INCORPORATION OF ONE ATOM OF OXYGEN. 1.13.99.- MISCELLANOUS (REQUIRES FURTHER CHARACTERIZATON). 1.14. -.- ACTING ON PAIRED DONORS WITH INCORPORATION OF MOLECULAR OXYGEN. 1.14.11.- WITH 2-OXOGLUTARATE AS ONE DONOR, AND INCORPORATION OF ONE ATOM 1.14.12.- WITH NADH OR NADPH AS ONE DONOR, AND INCORPORATION OF TWO ATOMS 1.14.13.- WITH NADH OR NADPH AS ONE DONOR, AND INCORPORATION OF ONE ATOM 1.14.14.- WITH REDUCED FLAVIN OR FLAVOPROTEIN AS ONE DONOR, AND 1.14.15.- WITH A REDUCED IRON-SULFUR PROTEIN AS ONE DONOR, AND 1.14.16.- WITH REDUCED PTERIDINE AS ONE DONOR, AND INCORPORATION OF ONE 1.14.17.- WITH ASCORBATE AS ONE DONOR, AND INCORPORATION OF ONE ATOM OF 1.14.18.- WITH ANOTHER COMPOUND AS ONE DONOR, AND INCORPORATION OF ONE 1.14.99.- MISCELLANOUS (REQUIRES FURTHER CHARACTERIZATON). 1.15. -.- ACTING ON SUPEROXIDE RADICALS AS ACCEPTOR. 1.16. -.- OXIDIZING METAL IONS. 1.16. 1.- WITH NAD(+) OR NADP(+) AS ACCEPTOR. 1.16. 3.- WITH OXYGEN AS ACCEPTOR. 1.17. -.- ACTING ON -CH(2) GROUPS. 1.17. 1.- WITH NAD(+) OR NADP(+) AS ACCEPTOR. 1.17. 3.- WITH OXYGEN AS ACCEPTOR. 1.17. 4.- WITH A DISULFIDE AS ACCEPTOR. 1.17.99.- WITH OTHER ACCEPTORS. 1.18. -.- ACTING ON REDUCED FERREDOXIN AS DONOR. 1.18. 1.- WITH NAD(+) OR NADP(+) AS ACCEPTOR. 1.18. 6.- WITH DINITROGEN AS ACCEPTOR. 1.18.99.- WITH H(+) AS ACCEPTOR. 1.19. -.- ACTING ON REDUCED FLAVODOXIN AS DONOR. 1.19. 6.- WITH DINITROGEN AS ACCEPTOR. 1.97. -.- OTHER OXIDOREDUCTASES. 2. -. -.- TRANSFERASES. 2. 1. -.- TRANSFERRING ONE-CARBON GROUPS. 2. 1. 1.- METHYLTRANSFERASES. 2. 1. 2.- HYDROXYMETHYL-, FORMYL- AND RELATED TRANSFERASES. 2. 1. 3.- CARBOXYL- AND CARBAMOYLTRANSFERASES. 2. 1. 4.- AMIDINOTRANSFERASES. 2. 2. -.- TRANSFERRING ALDEHYDE OR KETONE RESIDUES. 2. 3. -.- ACYLTRANSFERASES. 2. 3. 1.- ACYLTRANSFERASES. 2. 3. 2.- AMINOACYLTRANSFERASES. 2. 4. -.- GLYCOSYLTRANSFERASES. 2. 4. 1.- HEXOSYLTRANSFERASES. 2. 4. 2.- PENTOSYLTRANSFERASES. 2. 4.99.- TRANSFERRING OTHER GLYCOSYL GROUPS. 2. 5. -.- TRANSFERRING ALKYL OR ARYL GROUPS, OTHER THAN METHYL GROUPS. 2. 6. -.- TRANSFERRING NITROGENOUS GROUPS. 2. 6. 1.- TRANSAMINASES (AMINOTRANSFERASES). 2. 6. 3.- OXIMINOTRANSFERASES. 2. 6.99.- TRANSFERRING OTHER NITROGENEOUS GROUPS. 2. 7. -.- TRANSFERRING PHOSPHOROUS-CONTAINING GROUPS. 2. 7. 1.- PHOSPHOTRANSFERASES WITH AN ALCOHOL GROUP AS ACCEPTOR. 2. 7. 2.- PHOSPHOTRANSFERASES WITH A CARBOXYL GROUP AS ACCEPTOR. 2. 7. 3.- PHOSPHOTRANSFERASES WITH A NITROGENEOUS 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. 8. -.- TRANSFERRING SULFUR-CONTAINING GROUPS. 2. 8. 1.- SULFURTRANSFERASES. 2. 8. 2.- SULFOTRANSFERASES. 2. 8. 3.- COA-TRANSFERASES. 2. 9. -.- TRANSFERRING SELENIUM-CONTAINING GROUPS. 3. -. -.- HYDROLASES. 3. 1. -.- ACTING ON ESTER BONDS. 3. 1. 1.- CARBOXYLIC ESTER HYDROLASES. 3. 1. 2.- THIOLESTER HYDROLASES. 3. 1. 3.- PHOSPHORIC MONOESTER HYDROLASES. 3. 1. 4.- PHOSPHORIC DIESTER HYDROLASES. 3. 1. 5.- TRIPHOSPHORIC MONOESTER HYDROLASES. 3. 1. 6.- SULFURIC ESTER HYDROLASES. 3. 1. 7.- DIPHOSPHORIC MONOESTER HYDROLASES. 3. 1. 8.- PHOSPHORIC TRIESTER HYDROLASES. 3. 1.11.- EXODEOXYRIBONUCLEASES PRODUCING 5'-PHOSPHOMONOESTERS. 3. 1.13.- EXORIBONUCLEASES PRODUCING 5'-PHOSPHOMONOESTERS. 3. 1.14.- EXORIBONUCLEASES PRODUCING OTHER THAN 5'-PHOSPHOMONOESTERS. 3. 1.15.- EXONUCLEASES ACTIVE WITH EITHER RIBO- OR DEOXYRIBONUCLEIC ACID 3. 1.16.- EXONUCLEASES ACTIVE WITH EITHER RIBO- OR DEOXYRIBONUCLEIC ACID 3. 1.21.- ENDODEOXYRIBONUCLEASES PRODUCING 5'-PHOSPHOMONOESTERS. 3. 1.22.- ENDODEOXYRIBONUCLEASES PRODUCING OTHER THAN 5'-PHOSPHOMONOESTERS. 3. 1.25.- SITE-SPECIFIC ENDODEOXYRIBONUCLEASES SPECIFIC FOR ALTERED BASES. 3. 1.26.- ENDORIBONUCLEASES PRODUCING 5'-PHOSPHOMONOESTERS. 3. 1.27.- ENDORIBONUCLEASES PRODUCING OTHER THAN 5'-PHOSPHOMONOESTERS. 3. 1.30.- ENDONUCLEASES ACTIVE WITH EITHER RIBO- OR DEOXYRIBONUCLEIC ACID 3. 1.31.- ENDONUCLEASES ACTIVE WITH EITHER RIBO- OR DEOXYRIBONUCLEIC ACID 3. 2. -.- GLYCOSIDASES. 3. 2. 1.- HYDROLYSING O-GLYCOSYL COMPOUNDS. 3. 2. 2.- HYDROLYSING N-GLYCOSYL COMPOUNDS. 3. 2. 3.- HYDROLYSING S-GLYCOSYL COMPOUNDS. 3. 3. -.- ACTING ON ETHER BONDS. 3. 3. 1.- THIOETHER HYDROLASES. 3. 3. 2.- ETHER HYDROLASES. 3. 4. -.- ACTING ON PEPTIDE BONDS (PEPTIDE HYDROLASES). 3. 4.11.- AMINOPEPTIDASES. 3. 4.13.- DIPEPTIDASES. 3. 4.14.- DIPEPTIDYL-PEPTIDASES AND TRIPEPTIDYL-PEPTIDASES. 3. 4.15.- PEPTIDYL-DIPEPTIDASES. 3. 4.16.- SERINE-TYPE CARBOXYPEPTIDASES. 3. 4.17.- METALLOCARBOXYPEPTIDASES. 3. 4.18.- CYSTEINE-TYPE CARBOXYPEPTIDASES. 3. 4.19.- OMEGA PEPTIDASES. 3. 4.21.- SERINE ENDOPEPTIDASES. 3. 4.22.- CYSTEINE ENDOPEPTIDASES. 3. 4.23.- ASPARTIC ENDOPEPTIDASES. 3. 4.24.- METALLOENDOPEPTIDASES. 3. 4.99.- ENDOPEPTIDASES OF UNKNOWN CATALYTIC MECHANISM. 3. 5. -.- ACTING ON CARBON-NITROGEN BONDS, OTHER THAN PEPTIDE BONDS. 3. 5. 1.- IN LINEAR AMIDES. 3. 5. 2.- IN CYCLIC AMIDES. 3. 5. 3.- IN LINEAR AMIDINES. 3. 5. 4.- IN CYCLIC AMIDINES. 3. 5. 5.- IN NITRILES. 3. 5.99.- IN OTHER COMPOUNDS. 3. 6. -.- ACTING ON ACID ANHYDRIDES. 3. 6. 1.- IN PHOSPHOROUS-CONTAINING ANHYDRIDES. 3. 6. 2.- IN SULFONYL-CONTAINING ANHYDRIDES. 3. 7. -.- ACTING ON CARBON-CARBON BONDS. 3. 7. 1.- IN KETONIC SUBSTANCES. 3. 8. -.- ACTING ON HALIDE BONDS. 3. 8. 1.- IN C-HALIDE COMPOUNDS. 3. 9. -.- ACTING ON PHOSPHORUS-NITROGEN BONDS. 3.10. -.- ACTING ON SULFUR-NITROGEN BONDS. 3.11. -.- ACTING ON CARBON-PHOSPHORUS BONDS. 3.12. -.- ACTING ON SULFUR-SULFUR BONDS. 4. -. -.- LYASES. 4. 1. -.- CARBON-CARBON LYASES. 4. 1. 1.- CARBOXY-LYASES. 4. 1. 2.- ALDEHYDE-LYASES. 4. 1. 3.- OXO-ACID-LYASES. 4. 1.99.- OTHER CARBON-CARBON LYASES. 4. 2. -.- CARBON-OXYGEN LYASES. 4. 2. 1.- HYDRO-LYASES. 4. 2. 2.- ACTING ON POLYSACCHARIDES. 4. 2.99.- OTHER CARBON-OXYGEN LYASES. 4. 3. -.- CARBON-NITROGEN LYASES. 4. 3. 1.- AMMONIA-LYASES. 4. 3. 2.- AMIDINE-LYASES. 4. 3. 3.- AMINE-LYASES. 4. 3.99.- OTHER CARBON-NITROGEN-LYASES. 4. 4. -.- CARBON-SULFUR LYASES. 4. 5. -.- CARBON-HALIDE LYASES. 4. 6. -.- PHOSPHORUS-OXYGEN LYASES. 4.99. -.- OTHER LYASES. 5. -. -.- ISOMERASES. 5. 1. -.- RACEMASES AND EPIMERASES. 5. 1. 1.- ACTING ON AMINO ACIDS AND DERIVATIVES. 5. 1. 2.- ACTING ON HYDROXY ACIDS AND DERIVATIVES. 5. 1. 3.- ACTING ON CARBOHYDRATES AND DERIVATIVES. 5. 1.99.- ACTING ON OTHER COMPOUNDS. 5. 2. -.- CIS-TRANS-ISOMERASES. 5. 3. -.- INTRAMOLECULAR OXIDOREDUCTASES. 5. 3. 1.- INTERCONVERTING ALDOSES AND KETOSES. 5. 3. 2.- INTERCONVERTING KETO- AND ENOL- GROUPS. 5. 3. 3.- TRANSPOSING C==C GROUPS. 5. 3. 4.- TRANSPOSING S-S BONDS. 5. 3.99.- OTHER INTRAMOLECULAR OXIDOREDUCTASES. 5. 4. -.- INTRAMOLECULAR TRANSFERASES (MUTASES). 5. 4. 1.- TRANSFERRING ACYL GROUPS. 5. 4. 2.- PHOSPHOTRANSFERASES (PHOSPHOMUTASES). 5. 4. 3.- TRANSFERRING AMINO GROUPS. 5. 4.99.- TRANSFERRING OTHER GROUPS. 5. 5. -.- INTRAMOLECULAR LYASES. 5.99. -.- OTHER ISOMERASES. 6. -. -.- LIGASES. 6. 1. -.- FORMING CARBON-OXYGEN BONDS. 6. 1. 1.- LIGASES FORMING AMINOACYL-TRNA AND RELATED COMPOUNDS. 6. 2. -.- FORMING CARBON-SULFUR BONDS. 6. 2. 1.- ACID--THIOL LIGASES. 6. 3. -.- FORMING CARBON-NITROGEN BONDS. 6. 3. 1.- ACID--AMMONIA (OR AMINE) LIGASES (AMIDE SYNTHASES). 6. 3. 2.- ACID--AMINO-ACID LIGASES (PEPTIDE SYNTHASES). 6. 3. 3.- CYCLO-LIGASES. 6. 3. 4.- OTHER CARBON--NITROGEN LIGASES. 6. 3. 5.- CARBON--NITROGEN LIGASES WITH GLUTAMINE AS AMIDO-N-DONOR. 6. 4. -.- FORMING CARBON-CARBON BONDS. 6. 5. -.- FORMING PHOSPHORIC ESTER BONDS.
Back to the ExPASy molecular biology server home
page