Question

You have identified a novel cytoplasmic protein. Through sequence analysis you are able to identify the presence of a number of serine/threonine phosphorylation motifs. Based on these data, you hypothesize that this protein may be a substrate for what kind of enzyme?

Answer 1

The protein will be substrate for protein kinases

Answer 2

Answer: The protein will be a substrate for protein kinases

Explanation: Kinases are a class of enzymes that catalyze the addition of a phosphoryl group to a protein. The kinase will add a phosphoryl group to the protein at its serine/ threonine residues.