Determinants Present in the Receptor Carboxy Tail Are Responsible for Differences in Subtype-Specific Coupling of -Adrenergic Receptors to Phosphoinositide 3-Kinase
Figure 2
Akt activation following β-AR stimulation. HEK 293 cells were
transfected with -AR or -AR. Forty-eight hours after the
transfection, cells were stimulated with 1 μM isoproterenol for the indicated
times. Akt activation status was determined by immunoblot for the
phosphorylated form of Akt compared to the total amount of Akt after
stimulation of -AR () or -AR (■) expressing cells. Top panel is a
representative immunoblot of the experiments (). Data from
these experiments is quantitated in the bottom panel as described in Section
2
.
versus
0 minute.