4.3.2.1 argininosuccinate lyase - 4.3.2.2 adenylosuccinate lyase - 4.3.2.3 ureidoglycolate lyase - 4.3.2.4 purine imidazole-ring cyclase - 4.3.2.5 peptidylamidoglycolate lyase - 4.3.2.6 gamma-L-glutamyl-butirosin B gamma-glutamyl cyclotransferase - 4.3.2.7 glutathione-specific gamma-glutamylcyclotransferase - 4.3.2.8 gamma-glutamylamine cyclotransferase - 4.3.2.9 gamma-glutamylcyclotransferase - 4.3.2.10 imidazole glycerol-phosphate synthase -