ID 2.1.1.400 DE 6-carboxymethyl-5-methyl-4-hydroxypyridin-2-ol 3-C-methyltransferase. CA 6-carboxymethyl-5-methyl-4-hydroxypyridin-2-ol + S-adenosyl-L-methionine CA = 6-carboxymethyl-3,5-dimethyl-4-hydroxypyridin-2-ol + S-adenosyl-L- CA homocysteine + H(+). CC -!- The enzyme, characterized from the archaeon Methanococcus CC maripaludis, participates in the biosynthesis of the iron- CC guanylylpyridinol (FeGP) cofactor of EC 1.12.98.2. DR Q57913, HCGC_METJA ; //