>sp|P54808|GLNB1_METBA Nitrogen fixation nifHD1 region GlnB-like protein 1 OS=Methanosarcina barkeri GN=glnBA MQMIRAIIRPGMETKVIECLEKEGCISLTKMEVFGRGKQKGIHIADISYDELQKTMLLMV VEDEHKDRAIKTIMESARTGKYGDGRIFVTPVEEAYTIRTGKPGL