Which of the Following Mechanisms is NOT Directly Involved in Inactivating

Question

Which of the following mechanisms is NOT directly involved in inactivating an activated RTK?
A)dephosphorylation by serine/threonine phosphatases
B)dephosphorylation by protein tyrosine phosphatases
C)removal of the RTK from the plasma membrane by endocytosis
D)digestion of the RTK in lysosomes

Accepted Answer

Dephosphorylation by serine/threonine phosphatases is not directly involved in inactivating an activated RTK (Receptor Tyrosine Kinase) because RTKs are primarily regulated through tyrosine phosphorylation and dephosphorylation, not serine/threonine phosphorylation.