>sp|P54807|GLNB3_METBA Nitrogen fixation nifHD2 region GlnB-like protein 1 OS=Methanosarcina barkeri OX=2208 PE=3 SV=1 MKMVRAILRPEWTEEVTDGLAEAGYYSLTKINVFGRGKQKGITVGDVHYDELAKTMIMMA VEDEAVDKVIKIISGKAYTGNMGDGKIFVNTIEAAYTISSGEKGL