>tr|A0A0E3LV33|A0A0E3LV33_METMZ Tetrahydromethanopterin S-methyltransferase subunit A OS=Methanosarcina mazei S-6 GN=mtrA MADKREPAPGWPILKGEYEVGDVKNSVLVITCGSHLPGKPILDAGAACTGSCKTENLGIE KVVAHIISNPNIRYLLVTGSEVKGHITGQSMMSLHANGVKENRIAGALGAIPYVENLNAA AVARFQEQVQVVNLLDTEDMGAITSKVRELASKDPGAFDADPLVVEISEEGEEEEEGGVV RPVSGEIAVLRSRLKAIEARMMDIGNLNKFHSGVHAGKVEGAMIGLTITISLLGLLLLGR