>sp|Q2FRN2|MTRA_METHJ Tetrahydromethanopterin S-methyltransferase subunit A OS=Methanospirillum hungatei JF-1 GN=mtrA MANKKSPASGWPIVQGDFHTGDPNSPVAVVTMGSHLDEGAICSAGAAIAGSCKTENLGLE KVIANVISNPNIRFVITCGTEVKGHLSGQSLIALHQNGVDGGKIVGSKGAIPFIENLSAD NIKRFQEQVELVDIMESEDLGAISAKIKELTARDPGAFDAEAMIVEIKEEGGGAAEEGGE VRPMSAEVALIHARMKTIQRTITDIGFYDKYAAGVYGGKVEGLMIGLIVSFVIIGLLLVG HGVS