[covalent ligation of a protein or other substrate to the ADP-ribose (adenine-ribose-P-P-ribose) obtained by splitting off the nicotinamide from NADH; important in polynucleotide biosynthesis, G protein systems, and pertussis and cholera toxin actions. ( CSP )]
UMLS (CSP) C0596043 Relation/PAR: Glycosylation