>sp|P71156|NIFH_MEGGA Nitrogenase iron protein OS=Megalodesulfovibrio gigas GN=nifH MRKIAIYGKGGIGKSTTTQNTVAGLAEMGKRVMVVGCDPKADSTRLLLGGLSQRTVLDTL REEGEDVDLDDIVSPGFANTLCTESGGPEPGVGCAGRGIITSINLLEQLGAFKEEKKLDY TFYDVLGDVVCGGFAMPIREGKAQEIYIVVSGEMMAMYAANNICKGIVKYADAGGVRLGG LICNSRKVDNEDKLILALAERLGTQMIHFVPRDNQVQRAELMRKTVIEFSPEHPQADEYR ALANKIDQNQMFVVPKPLSIEELEKLLVDHGIMN