L-glutamyl-5-poly(ADP-ribose) (S)-2-amino-5-poly[2'-adenosine 5'-(trihydrogen diphosphate) 5'->5'-ester with 1alpha-D-ribofuranosyl]oxy-5-oxopentanoic acid A protein modification that effectively converts an L-glutamic acid residue to L-glutamyl-5-poly(ADP-ribose). ADP Ribose addition ADP-Ribosyl E L-glutamyl-5-poly(ADP-ribose) L-isoglutamyl-poly(ADP-ribose) MOD:00300 MOD_RES PolyADP-ribosyl glutamic acid O-ADP-ribosylation (on Glutamate or C terminus) PSI-MOD Unimod:213 natural modified L-glutamic acid residue adenosine diphosphoribosyl (ADP-ribosyl) modified residue