ENTRY       M00546            Pathway   Module
NAME        Purine degradation, xanthine => urea
DEFINITION  (K00106,K00087+K13479+K13480,K13481+K13482,K11177+K11178+K13483) (K00365,K16838,K16839,K22879) (K13484,K07127 (K13485,K16838,K16840)) (K01466,K16842) K01477
ORTHOLOGY   K00106,K00087+K13479+K13480,K13481+K13482,K11177+K11178+K13483  xanthine dehydrogenase [EC:1.17.1.4 1.17.3.2] [RN:R02103 R02107]
            K00365,K16838  urate oxidase [EC:1.7.3.3] [RN:R02106]
            K16839,K22879  FAD-dependent urate hydroxylase [EC:1.14.13.113] [RN:R09514]
            K07127  5-hydroxyisourate hydrolase [EC:3.5.2.17] [RN:R06601]
            K13485,K16838,K16840  2-oxo-4-hydroxy-4-carboxy-5-ureidoimidazoline decarboxylase [EC:4.1.1.97] [RN:R06604]
            K13484  5-hydroxyisourate hydrolase / 2-oxo-4-hydroxy-4-carboxy-5-ureidoimidazoline decarboxylase [EC:3.5.2.17 4.1.1.97] [RN:R06601+R06604]
            K01466,K16842  allantoinase [EC:3.5.2.5] [RN:R02425]
            K01477  allantoicase [EC:3.5.3.4] [RN:R02422]
CLASS       Pathway modules; Nucleotide metabolism; Purine metabolism
PATHWAY     map00230  Purine metabolism
            map01100  Metabolic pathways
REACTION    R02103,R02107 C00385 -> C00366
            R02106,R09514 C00366 -> C11821
            R06601 C11821 -> C12248
            R06604 C12248 -> C02350
            R02425 C02350 -> C00499
            R02422 C00499 -> C00086
COMPOUND    C00385  Xanthine
            C00366  Urate
            C11821  5-Hydroxyisourate
            C12248  5-Hydroxy-2-oxo-4-ureido-2,5-dihydro-1H-imidazole-5-carboxylate
            C02350  (S)(+)-Allantoin
            C00499  Allantoate
            C00086  Urea
///
