>sp|Q8U0Z7|MBHLB_PYRFU Membrane-bound hydrogenase subunit beta OS=Pyrococcus furiosus GN=mbhK MSKAEMVANKIKERFPNAEVVVKTNKWGRERVWVRISREEYKELMKFIRELDPEAHYSIG IEQDWGDELGFLNHILLFYDEPPGVSLLIDVHAPKDNPVLPDTSDIFPISLQFEREGMEM VGLDFEGAPDKRRLFLPDDFPEGIYPLRTDEKGVPEEMVKNAGHPYLLRREKK