>sp|Q59584|MTRB_METTM Tetrahydromethanopterin S-methyltransferase subunit B OS=Methanothermobacter marburgensis (strain ATCC BAA-927 / DSM 2133 / JCM 14651 / NBRC 100331 / OCM 82 / Marburg) OX=79929 GN=mtrB PE=1 SV=1 MEMLPLVKIAPEYNLTLDPSTGMIGAALGREVIILSMDEINEQIAALEATADDLINSLDP TTIPEGSYPGREGVYLTAGKLTNIVYGFILGLIILFALLL