Term Name:	negative regulation of protein ADP-ribosylation
Synonyms:	negative regulation of protein amino acid ADP-ribosylation
Definition:	Any process that decreases the frequency, rate or extent of protein ADP-ribosylation. Protein ADP-ribosylation is the transfer, from NAD, of ADP-ribose to protein amino acids.
Ontology:	GO: Biological Process [GO:0010836]    QuickGO    AmiGO