Insulin binds to a receptor that
(I)is coupled to a G protein.
(II)possesses tyrosine kinase activity.
(III)possesses serine/threonine phosphatase activity.
(IV)interact with proteins homologous to Src
A)I,II,III
B)II only
C)I,III
D)II,IV
E)I,IV

Question

Quizplus · Accepted Answer

Insulin binds to a receptor that possesses tyrosine kinase activity (II) and can interact with proteins homologous to Src (IV). Insulin receptors are not coupled to G proteins nor do they possess serine/threonine phosphatase activity.

Insulin Binds to a Receptor That