Heme export protein, cytochrome C-type biogenesis ccmA; Part of the ABC transporter complex CcmAB involved in the biogenesis of c-type cytochromes; once thought to export heme, this seems not to be the case, but its exact role is uncertain. Responsible for energy coupling to the transport system; Belongs to the ABC transporter superfamily. CcmA exporter (TC 3.A.1.107) family.

Cytochrome c-type biogenesis protein CycJ; Heme chaperone required for the biogenesis of c-type cytochromes. Transiently binds heme delivered by CcmC and transfers the heme to apo-cytochromes in a process facilitated by CcmF and CcmH. Belongs to the CcmE/CycJ family.

Cytochrome c-type biogenesis protein CycK; Function of homologous gene experimentally demonstrated in an other organism; enzyme.

Periplasmic protein thiol:disulfide oxidoreductase, cytochrome c-type biogenesis; Function of strongly homologous gene; enzyme.

Cytochrome c-type biogenesis protein CycL precursor; Possible subunit of a heme lyase.

Putative uroporphyrinogen III synthase; Catalyzes cyclization of the linear tetrapyrrole, hydroxymethylbilane, to the macrocyclic uroporphyrinogen III.

Cytochrome c-type biogenesis protein CycH; Function of homologous gene experimentally demonstrated in an other organism; factor.

Siroheme synthase; Multifunctional enzyme that catalyzes the SAM-dependent methylations of uroporphyrinogen III at position C-2 and C-7 to form precorrin-2 via precorrin-1. Then it catalyzes the NAD-dependent ring dehydrogenation of precorrin-2 to yield sirohydrochlorin. Finally, it catalyzes the ferrochelation of sirohydrochlorin to yield siroheme.

NADH-quinone oxidoreductase chain J (NADH dehydrogenase I, chain J); NDH-1 shuttles electrons from NADH, via FMN and iron-sulfur (Fe-S) centers, to quinones in the respiratory chain. Couples the redox reaction to proton translocation (for every two electrons transferred, four hydrogen ions are translocated across the cytoplasmic membrane), and thus conserves the redox energy in a proton gradient.