>tr|A0A1Z4KTU1|A0A1Z4KTU1_ANAVA Nitrogenase iron protein OS=Trichormus variabilis NIES-23 GN=nifH MTDENIRQIAFYGKGGIGKSTTSQNTLAAMAEMGQRIMIVGCDPKADSTRLMLHSKAQTT VLHLAAERGAVEDLELHEVMLTGFRGVKCVESGGPEPGVGCAGRGIITAINFLEENGAYQ DLDFVSYDVLGDVVCGGFAMPIREGKAQEIYIVTSGEMMAMYAANNIARGILKYAHSGGV RLGGLICNSRKVDREDELIMNLAERLNTQMIHFVPRDNIVQHAELRRMTVNEYAPDSNQG QEYRALAKKIINNDKLTIPTPMEMDELEALLIEYGLLDDDTKHSEIIGKPAEATK