>sp|Q8PYY0|NIFH_METMA Nitrogenase iron protein OS=Methanosarcina mazei GN=nifH
MRQIAIYGKGGIGKSTTTQNLTAALATMGNKILLVGCDPKADSTRMLLGGLNQKTVLDTL
RSEGDEGVNLDVVVQPGFGNIKCVESGGPEPGVGCAGRGIITSIGLLENLGAYTEDLDYV
FYDVLGDVVCGGFAMPIREGKAKEIYIVASGELMAIYAANNICKGLAKFAKGGARLGGII
CNSRNVDGERELLEAFAKKLGSQLIHFVPRDNIVQRAEINRKTVIDFDPESNQAKEYLTL
ASNVQNNTKLVVPTPLPMEELEAMMVEFGIVEL