>1L3C_1|Chains A, B, C, D|Precorrin-6y methyltransferase/putative decarboxylase|Methanothermobacter thermautotrophicus (145262) MIPDDEFIKNPSVPGPTAMEVRCLIMCLAEPGKNDVAVDVGCGTGGVTLELAGRVRRVYAIDRNPEAISTTEMNLQRHGLGDNVTLMEGDAPEALCKIPDIDIAVVGGSGGELQEILRIIKDKLKPGGRIIVTAILLETKFEAMECLRDLGFDVNITELNIARGRALDRGTMMVSRNPVALIYTGVSHENKD