KEGG Orthology (KO) [BR:ava00001] 09100 Metabolism 09108 Metabolism of cofactors and vitamins 00860 Porphyrin metabolism [PATH:ava00860] Ava_3075 uroporphyrinogen-III synthase K01719 hemD; uroporphyrinogen-III synthase [EC:4.2.1.75] Enzymes [BR:ava01000] 4. Lyases 4.2 Carbon-oxygen lyases 4.2.1 Hydro-lyases 4.2.1.75 uroporphyrinogen-III synthase Ava_3075 uroporphyrinogen-III synthase K01719 hemD; uroporphyrinogen-III synthase [EC:4.2.1.75]