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EC Explorer
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EC Tree
1 Oxidoreductases
2 Transferases
3 Hydrolases
4 Lyases
5 Isomerases
6 Ligases
6.1 Forming carbon-oxygen bonds
6.2 Forming carbon-sulfur bonds
6.3 Forming carbon-nitrogen bonds
6.3.1 Acidammonia (or amine) ligases (amide synthases)
6.3.2 Acidamino-acid ligases (peptide synthases)
6.3.3 Cyclo-ligases
6.3.4 Other carbon-nitrogen ligases
6.3.4.1 GMP synthase
6.3.4.2 CTP synthase (glutamine hydrolysing)
6.3.4.3 formate—tetrahydrofolate ligase
6.3.4.4 adenylosuccinate synthase
6.3.4.5 argininosuccinate synthase
6.3.4.6 urea carboxylase
6.3.4.7 ribose-5-phosphate—ammonia ligase
6.3.4.8 imidazoleacetate—phosphoribosyldiphosphate ligase
6.3.4.9 biotin—[methylmalonyl-CoA-carboxytransferase] ligase
6.3.4.10 biotin—[propionyl-CoA-carboxylase (ATP-hydrolysing)] ligase
6.3.4.11 biotin—[methylcrotonoyl-CoA-carboxylase] ligase
6.3.4.12 glutamate—methylamine ligase
6.3.4.13 phosphoribosylamine—glycine ligase
6.3.4.14 biotin carboxylase
6.3.4.15 biotin—[biotin carboxyl-carrier protein] ligase
6.3.4.16 carbamoyl-phosphate synthase (ammonia)
6.3.4.17 formate—dihydrofolate ligase
6.3.4.18 5-(carboxyamino)imidazole ribonucleotide synthase
6.3.4.19 tRNA
Ile
-lysidine synthase
6.3.4.20 7-cyano-7-deazaguanine synthase
6.3.4.21 nicotinate phosphoribosyltransferase
6.3.4.22 tRNA
Ile
2
-agmatinylcytidine synthase
6.3.4.23 formate—phosphoribosylaminoimidazolecarboxamide ligase
6.3.4.24 tyramine—
L
-glutamate ligase
6.3.4.25 2-amino-2′-deoxyadenylo-succinate synthase
6.3.5 Carbon-nitrogen ligases with glutamine as amido-N-donor
6.4 Forming carbon-carbon bonds
6.5 Forming phosphoric-ester bonds
6.6 Forming nitrogenmetal bonds
6.6.1 Forming coordination complexes
6.7 Forming nitrogen-nitrogen bonds
7 Translocases