>sp|O59640|MTRA_METMA Tetrahydromethanopterin S-methyltransferase subunit A OS=Methanosarcina mazei GN=mtrA MADKREPAPGWPILKGEYEVGDVKNSVLVITCGSHLPGKPILDAGAACTGSCKTENLGIE KVVAHIISNPNIRYLLVTGSEVKGHITGQSMMSLHANGVKENRIAGALGAIPYVENLNAA AVARFQEQVQVVNLLDTEDMGAITSKVRELASKDPGAFDADPLVVEISEEGEEEEEGGVV RPVSGEIAVLRSRLKAIEARMMDIGNLNKFHSGVHAGKVEGAMIGLTITISLLGLLLLGR