>8WKD_1|Chain A|DUF2121 domain-containing protein|Methanosarcina mazei (2209) ALVIAFIGKNGAVMAGDMREITFEGEKPDREKLEKELYSGSIVTDEEMQKKAEEFGVKITVADCKEKVSERNGVLVGEVSSAEGGVVKKRRLYASAGNFAIAELINTEMTLTSQGKGSNFIAFGNEFTKQVANKCFKDNWTKKSNLQDAVKILILCMETVARKTASVSKQFMIVQTASNADVLKVVEKDRNS >8WKD_2|Chain B[auth C]|Tetrahydromethanopterin S-methyltransferase subunit A|Methanosarcina mazei (2209) RELASKDPGAVDAKPLVVEI