Modifies the glutamine residue in the glycylglycylglutamine (GGQ) motif of ribosomal protein L3 (Gln150 in the protein from the bacterium Escherichia coli). The enzyme does not act on peptide chain release factor 1 or 2. Formerly EC 2.1.1.n15.
Cofactor
History
Reactions
S-adenosyl-L-methionine + [ribosomal protein L3]-L-glutamine = S-adenosyl-L-homocysteine + [ribosomal protein L3]-N(5)-methyl-L- glutamine.