>sp|P25771|GLNB1_METTL Nitrogen fixation nifHD region GlnB-like protein 1 OS=Methanothermococcus thermolithotrophicus GN=glnBA MKMIKAIVRPDKVDDIVDSLENAGYPAFTKINSVGRGKQGGLKVGEIFYDELPKTILLIA VNDDEVDEVVGLIKSSASTGNFGDGKIFIQPITEAYTIRTGETGI