negative regulation of protein ubiquitination
down regulation of protein ubiquitination
exact
down-regulation of protein ubiquitination
exact
downregulation of protein ubiquitination
exact
inhibition of protein ubiquitination
narrow
Any process that stops, prevents, or reduces the frequency, rate or extent of the addition of ubiquitin groups to a protein.
GO:0031396
regulation of protein ubiquitination
is_a
GO:1903321
negative regulation of protein modification by small protein conjugation or removal
is_a
GO:0016567
protein ubiquitination
negatively_regulates