1.14.13.239 FAD - 746297 1.14.13.239 FMN cofactor of subunit CntB 765068 1.14.13.239 NAD+ - 746297 1.14.13.239 NADH - 744480, 744652, 746297 1.14.13.239 NADPH - 744480, 744652, 746297 1.14.13.239 [2Fe-2S]-center - 746297 1.14.13.239 [2Fe-2S]-center subunit CntB carries a plant-type [2Fe-2S] cluster. CntA contains a [2Fe-2S] cluster and a mononuclear iron center. Hierarchical metallocenter maturation of Rieske [2Fe-2S] is followed by the mononuclear [Fe]center 765068