signaling 2

Which G-protein subunit is activated by Propranolol

• Gs alpha

• Gq alpha

• Gi alpha

• None

Glucagon receptor and adrenergic beta receptors use similar signal transduction network. What is the transducer

• Gs alpha

• Gq alpha

• Gi alpha

• None

The GPCR-Arrestin complex formation is facilitated by the phosphorylation of GPCR by

• PKA

• PKC

• GRK

• Phosphorylase Kinase

Pick the correct statement

• Calmodulin is a kinase

• Calmodulin binding fully activates CamK

• Calmodulin can activate CamK without calcium

• None

PKC is activated by

• both calcium and DAG

• both IP3 and DAG

• DAG only

• IP3 only

PICK THE BEST ANSWER

Epinephrine regulates blood glucose levels by

• Activating phosphorylase kinase

• Activating Glycogen phosphorylase

• Activating phosphorylase kinase and CREB

• Activating CREB