What Posttranslational Modification Occurs on the Protein CPEB to Initiate

Question

What posttranslational modification occurs on the protein CPEB to initiate mRNA translation?
A)phosphorylation
B)acetylation
C)ubiquitination
D)methylation
E)glycosylation

Accepted Answer

The posttranslational modification that occurs on the protein CPEB to initiate mRNA translation is phosphorylation. When CPEB is phosphorylated, it activates the mRNA by inducing the polyadenylation of the 3’ end of the mRNA, which in turn triggers translation.