modified L-lysine residue L-lysyl-poly(ADP-ribose) A protein modification that effectively converts an L-lysine residue to an L-lysyl-poly(ADP-ribose). C-term K L-lysyl-poly(ADP-ribose) MOD:01400 MOD_RES Lysyl poly(ADP-ribose) PSI-MOD natural poly[2'-adenosine 5'-(trihydrogen diphosphate) 5'->5'-ester with 1alpha-D-ribofuranosyl] (2S)-2,6-diaminohexanoate adenosine diphosphoribosyl (ADP-ribosyl) modified residue