Hormones

Question 1

G protein subunit that dissociates upon hormone binding

Answer 1

Alpha subunit

Question 2

Pathway used by nitric oxide and atrial natiuretic factor

Answer 2

cGMP pathway (effects are vasodilatory)

Question 3

Enzyme, Second Messenger, Protein Kinase of the CGMP pathway

Answer 3

Guanyl cyclase, CGMP, Protein Kinase G

Question 4

Pathway used by the E.coli heat stable toxin

Answer 4

CGMP (increased activity of CFTR = diarrhea)

Question 5

Insulin-sensitive glucose transporter

Answer 5

GLUT 4 (adipose, muscle)

Question 6

Enzyme, Second messenger, and Protein Kinase of Gs and Gi

Answer 6

Adenylyl cyclase, CAMP, Protein Kinase A

Question 7

Enzyme, Second messenger, and Protein Kinase of Gq

Answer 7

Phospholipase C, DAG/IP3,Ca, Protein Kinase C

Question 8

G protein of Alpha 1 receptors

Answer 8

Gq

Question 9

G protein of Alpha 2 receptors

Answer 9

Gi

Question 10

G protein of Beta receptors

Answer 10

Gs

Question 11

G protein of Muscarinic M1 receptors

Answer 11

Gq

Question 12

G protein of Muscarinic M3 receptors

Answer 12

Gi

Question 13

G protein of Muscarinic M3 receptors

Answer 13

Gq

Question 14

G protein of Dopamine D1 receptors

Answer 14

Gs

Question 15

G protein of Dopamine D2 receptors

Answer 15

Gi

Question 16

G protein of Histamine H1 receptors

Answer 16

Gq

Question 17

G protein of Histamine H2 receptors

Answer 17

Gs

Question 18

G protein of Vasopressin V1 receptors

Answer 18

Gq

Question 19

G protein of Vasopressin V2 receptors

Answer 19

Gs

Question 20

G protein of Vasopressin V3 receptors

Answer 20

Gq

Question 21

G protein affected by Cholera and E.coli toxin

Answer 21

Gs

Question 22

G protein affected by Pertussis toxin

Answer 22

Gi

Question 23

Enzyme in growth factor receptors, capable of auto-phosphorylation

Answer 23

Tyrosine kinase