ID 2.1.1.227 DE 16S rRNA (cytidine(1409)-2'-O)-methyltransferase. CA cytidine(1409) in 16S rRNA + S-adenosyl-L-methionine = 2'-O- CA methylcytidine(1409) in 16S rRNA + H(+) + S-adenosyl-L-homocysteine. CC -!- The bifunctional enzyme from Mycobacterium tuberculosis 2'-O- CC methylates cytidine(1409) in helix 44 of 16S rRNA and cytidine(1920) CC in helix 69 of 23S rRNA (cf. EC 2.1.1.226). DR P9WJ62, TLYA_MYCTO ; P9WJ63, TLYA_MYCTU ; //