Binding of hormone to a receptor tyrosine kinase causes all of the following,except:
A)dimerization of the receptor.
B)autophosphorylation of the receptor.
C)activation of Ras through an interaction with GRB2 and Sos.
D)hydrolysis of GTP bound to Ras.

Question

Quizplus · Accepted Answer

The binding of hormone to a receptor tyrosine kinase activates Ras through an interaction with GRB2 and Sos, but does not cause hydrolysis of GTP bound to Ras. This hydrolysis occurs as a result of the intrinsic GTPase activity of Ras or through the action of RasGAP.

Binding of Hormone to a Receptor Tyrosine Kinase Causes All