>sp|P25770|GLNB2_METTL Nitrogen fixation nifHD region GlnB-like protein 2 OS=Methanothermococcus thermolithotrophicus GN=glnBB MKEVIAIIRPNTVSKTVKALDVVGFPAVTMAECFGRGKQKGYFSANLPEIVDIQKIIEEG EKEGRFIKYIPKRLISIVVDDADVPLVVGIISKVNRTGSFGDGRIFVLPVEEAIRVRTGE TGEIAIGN