Protein fixC fixC Could be required for the formation of a functional nitrogenase Fe protein. Probably accepts electrons from fixA/fixB and reduces a quinone. MAERFDVIVVGAGMAGNAAAYTLAKGGLKVLQIERGETPGSKNVQGAILYADAIEKIIPDFRDDAPLERHLIEQRVWVMDDASYGYHYRSEDFNKPPYNRYTIIRVHFDQWFNKKAREAGVLTICETRHDLLIEGGKVVGVRTDRQGGEVRADAVILADGVNSRLAVKAGFSRDQPENWALAVKEIHFLPQETMEARFNIGEEEAAIEMAGKIDAGMMGTGFLYTNKESITLGVGCMLSDFKQQKISPYELLDRMKTHPSIAPLIAGSDMKEYAAHLIPEGGYNAIPQVYGDGWMIAGDAPIRHGIHREGSNLAMTTGMLAAQTLVELRAADKPFSAANLAEYKKKLDDSFVMKDLKKYRRMPEIFHKNKQFFTTYPDLLSRAAQTLIRVDGVDKKTKEKEIKKSFIGLRSLFGLIGDAFKFWRAVE 427 FIXC_AZOVI