derives from N6,N6-dimethyl-L-lysine 4x(2)H labeled dimethylated residue modified L-lysine residue 4x(2)H labeled dimethylated L-lysine 160.1513671875 160.25 32.056407928466796875 32.0800018310546875 K A protein modification that effectively converts an L-lysine residue to 4x(2)H labeled dimethylated L-lysine. DiMethyl-CHD2 MOD:01254 none C 2 (2)H 4 Dimethyl:2H(4) artifact PSI-MOD C 8 H 12 (2)H 4 N 2 O 1 mod189