>sp|A6VHF1|MTRB_METM7 Tetrahydromethanopterin S-methyltransferase subunit B OS=Methanococcus maripaludis (strain C7 / ATCC BAA-1331) OX=426368 GN=mtrB PE=3 SV=1 MDIVKVCPELHIVMDVDSGLIAEMRKDILVVDLHPVEDEINKLAQYAKALENSLDPRNSP MKAYNGREGTYKLAGMFQGMFFGFWVTMAILVLVTILAVKMNLSLIGL