>sp|Q50787|GLNB2_METTM Nitrogen fixation nifHD region GlnB-like protein 2 OS=Methanothermobacter marburgensis (strain ATCC BAA-927 / DSM 2133 / JCM 14651 / NBRC 100331 / OCM 82 / Marburg) OX=79929 GN=glnBB PE=3 SV=1 MKEVIAIIRPKNMKKTRDVLESLGFPSFNATRVLGRGKQRAIIDEVTIPSPSPEIDEVRG TMRYIPKRMIQITVEDPDVQLVVEAIMKVNHTGKIGDGKIFVCPVDDAMRIRTGDRGTEA L