negative regulation of protein ADP-ribosylation
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.
GO:0010835
regulation of protein ADP-ribosylation
is_a
GO:0043086
negative regulation of catalytic activity
is_a
negative regulation of protein amino acid ADP-ribosylation
exact