>tr|A0A644TD14|A0A644TD14_9ZZZZ nitrogenase OS=bioreactor metagenome GN=nifH1_2 MRKVAIYGKGGIGKSTTTQNTVAALAEMGRKVLVVGCDPKADSTRLLLGGLAQKTVLDTL REEGEDVELDLVRKTGFGNTLCVESGGPEPGVGCAGRGIITAVNLMEQLGGYESDSPLDY VFYDVLGDVVCGGFAMPIREGKAEEVYIVCSGEMMAMYAANNICKGIRKFADAGSVKLGG LICNSRMVDNEKEMIAEFAKRLGTQMIHFVPRDNDVQRAEINKKTVIEWNPQAKQADEYR ALAKAIDNNQMFVVPKPISVDELESLLVEFGVIS