>sp|P51604|GLNB2_METIV Nitrogen fixation nifHD region GlnB-like protein 2 OS=Methanobacterium ivanovii GN=glnBB MKEIIAIIRPNKINRTKEVLDALGFSSMTANAVFGRGRQKAIVGEVTFAIQNKDLREEEG SMRYIPKRMISLVVPDEDASLVVESIMKVNKTGQIGDGKIFVCPIEDAVRVRTKESGEDA IL