Adding one of these groups to homocysteine [HOH-moh-SISS-teen] results in methionine [meh-"THIGH"-uh-nin].
Adding one of these groups to homocysteine [HOH-moh-SISS-teen] results in methionine [meh-"THIGH"-uh-nin]. The enzyme MutH ["mute-H"] specifically targets regions without the presence of this modification, and the enzyme Dam performs this modification on GATC sites. The formation of tightly packed and transcriptionally inactive heteroÂ·chromatin is associated with adding two or three of this group to the lysine at the ninth position on histone ["HISS-tone"] H3. Barr bodies have large amounts of this modification. In bacteria, this group prevents restriction enzymes from digesting their hosts' DNA. Name this modification that attaches a group with formula CH3.
Adding one of these groups to homocysteine [HOH-moh-SISS-teen] results in methionine [meh-"THIGH"-uh-nin].
methylation [accept answers mentioning the addition of a methyl group]