acetyl-coa adenosylhomocysteinase agmatinase alanine alanine transaminase amino acid synthesis aminomuconate-semialdehyde dehydrogenase arginine arylformamidase asparaginase asparagine asparagine synthetase aspartate transaminase branched-chain alpha-keto acid dehydrogenase complex branched chain aminotransferase cas registry number catalysis chemical reaction collagen creatine creatine kinase cystathionine beta synthase cystathionine gamma-lyase cysteine d-cysteine desulfhydrase ec number enoyl-coa hydratase enzyme essential amino acid formiminotransferase cyclodeaminase fumarylacetoacetate hydrolase gamma-glutamyl transpeptidase gamma-glutamylcysteine synthetase glucogenic amino acid glutamate dehydrogenase glutaminase glutamine glutamine synthetase glutaryl-coa dehydrogenase glutathione glutathione synthetase glycine guanidinoacetate n-methyltransferase histidine histidine ammonia-lyase homocysteine methyltransferase isoleucine isovaleryl coenzyme a dehydrogenase ketogenic amino acid kynureninase l-threonine dehydrogenase leucine lyase lysine lysyl hydroxylase melanin metabolism methionine methionine adenosyltransferase methylcrotonyl-coa carboxylase methylglutaconyl-coa hydratase methylmalonyl-coa mutase methylmalonyl coa epimerase ornithine aminotransferase ornithine decarboxylase phenylalanine phenylalanine hydroxylase proline proline oxidase prolyl hydroxylase propionyl-coa propionyl-coa carboxylase protein data bank saccharopine dehydrogenase serine serine dehydratase serine hydroxymethyltransferase succinyl-coa tertiary structure threonine threonine aldolase tryptophan tyrosinase tyrosine tyrosine aminotransferase urocanate hydratase valine