>sp|P95296|NIFK_METTM Nitrogenase molybdenum-iron protein beta chain OS=Methanothermobacter marburgensis GN=nifK MPEINVMERGRELVVNPLVTCQPFGAMFATLGIRRGLPLVHGSQGCSTFVRYGLNRHFRE PAEIAVTSLHEDAAVFGGRSNIINGVKNLVKRFRPDLVGIVTTCSSEIIGDDVDGFMRVA ETELREELGDRFQTKLVHISTPSFVENHFRGYGNAIKSFIETLSREDGDCNHKLNIIPGI VNPGDIREIGHMLGLMDITPIILTDTSDPFDSPLRPSKTEQMPFYPPGGTAVPEIEDSSN SMGTLSLTMYGDEALNTLEKRFRVPGEYSMPIGVRNTDDFVRRAARISEKDVSDELLDER GILIDSMADLSSRYLFGRTAAVYGDPDMVAGISRFLCELGITPLHTCTGTDNELFIDRMK TVAAEADERINVMVKSDLRALEERLSEEPVDLMIGNSDGRLIAQDLGIPLVRVGYPVYDR VGYQRVPITGYRGAVNLLNRITNTVLREYYEPQHWKLQQ