>sp|Q50774|MTRG_METTM Tetrahydromethanopterin S-methyltransferase subunit G OS=Methanothermobacter marburgensis GN=mtrG MSEEEKTTIPRVLVSADEFNKANEKLDEIEEKVEFTVGEYSQRIGQQIGRDIGILYGIVI GLIILAVTNILFAGLLKGLLKSLFGL