Malonomonas rubra - 684744, 684745, 684746, 685053, 686488, 687270 Malonomonas rubra the genes encoding components of the malonate decarboxylase enzyme system are located within a gene cluster of about 11 kb comprizing 14 genes that have been termed madYZGBAECDHKFLMN. MadA represents the acyl-carrier-protein-transferase component, MadB is the integral membrane-bound carboxybiotin protein decarboxylase, MadC and MadD are the two subunits of the carboxyltransferase, MadE is the acyl carrier protein and MadF is the biotin protein 686491 Propionigenium modestum - 684744