>sp|D9PUX5|TFRB_METTM Fumarate reductase (CoM/CoB) subunit B OS=Methanothermobacter marburgensis (strain ATCC BAA-927 / DSM 2133 / JCM 14651 / NBRC 100331 / OCM 82 / Marburg) OX=79929 GN=tfrB PE=1 SV=1 MINVKVLRFEPGVDEKPHLESYDIPSKEKMKVLDALQLINKMYNANIAFRSSCRAGQCGS CAVKMNGEVVLACRAEVEDGAVIEPVDLPVIKDLMVDRSEIEDKVRAMGLYLQSEARGIQ RIKPEDYQDTKKLRGCIECFSCISSCPVIKESTEYAGPYFMRYISKFAFDPRDEAERAAG GVEEGLYCCTTCGKCAEVCPKELNVPGDAIEKLRAMACREGAGPLDAHRKIKKLISETGR SVDHIGKGFIESVGQNPGSRIGFFTGCLVDYRMPDVGMALLRVLREHGFEVDVPDGQVCC GSPMIRTGQLDIVEDLVERNRRALEGYDTIITVCAGCGATLKKDYPRYGVELNVLDISEF LADRIDDIKMKPVNMRVTYHDPCHLLRGQGVKLEPRKILNSIPGLEFVEMEKQGQCCGSG GGVKSGKPEIAESLGKKKAEMIRKLNVDAVITICPFCQLHIKDSLEKEGLGDVKVMNILE LLDMAYSDD