(6.2) Receptor Secondary Messenger and Location Flashcards
α1A secondary messenger
Gq
increase IP3/DAG
α1B secondary messenger
Gq
increase IP3/DAG
α1D secondary messenger
Gq
increase IP3/DAG
α2 A secondary messenger
Gi
Decrease cAMP
α2B secondary messenger
Gi
Decrease cAMP
α2C secondary messenger
Gi
Decrease cAMP
β1 secondary messenger
Gs
Increase cAMP
β2 secondary messenger
Gs
Increase cAMP
β3 secondary messenger
Gs
Increase cAMP
D1 secondary messenger
Gs
Increase cAMP
D2 secondary messenger
Gi
Decrease cAMP
D3 secondary messenger
Gi
Decrease cAMP
D4 secondary messenger
Gi
Decrease cAMP
D5 secondary messenger
Gs
Increase cAMP
M1 secondary messenger
Gq
increase IP3/DAG
M2 secondary messenger
Gi
Decrease cAMP
M3 secondary messenger
Gq
increase IP3/DAG
M4 secondary messenger
Gi
Decrease cAMP
M5 secondary messenger
Gq
increase IP3/DAG
NM secondary messenger
α2β
Na/K channel for depolarization
NN secondary messenger
α/β only
Na/K channel for Depolarization
Easy way to remember M receptors
Odds are Gq
Easy way to remember D receptors
D1 and D5 are increase cAMP
all others decrease cAMP
What Muscarinic receptor predominates the heart
M2
What muscarinic receptor primarily found in smooth muscle
M3 and M2
most common muscarinic receptor in most organs
M3
or otherwise about equal
Adrenergic receptor for relaxation of ciliary muscle for far vision
β2
adrenergic receptor for lacrimal secretions
α
adrenergic receptor for radial muscle contraction in eye
α1
adrenergic receptor to increase SA activity
β1>β2
adrenergic receptor to increase contractility and conduction speed
β1>β2
adrenergic receptor to increase AV activity
β1>β2
adrenergic receptor to increase his-purkinje system activity
β1>β2
adrenergic receptor to increase ventricular contractility and conduction velocity
β1>β2
adrenergic receptor for vasoconstriction
α1
adrenergic receptor for bronchodilation
β2
adrenergic receptor for pregnant uterine contraction
α1
adrenergic receptor for pregnant uterine relaxation
β2
adrenergic receptor for nonpregnant uterine relaxation
β2
adrenergic receptor for pilomotor contraction
α1
adrenergic receptor for localized skin secretions
α1
adrenergic receptor to increase salivary gland secretion
α1
adrenergic receptor to increase skeletal muscle contractility
β2
Eye muscarinic receptor
M3, M2
Muscarinic Receptor to slow SA node
M2»M3
Muscarinic Receptor to decrease contractility and conduction velocity in atria
M2»M3
Muscarinic Receptor to decrease AV conduction velocity
M2»M3
Muscarinic Receptor receptor to decrease activity of His-Purkinje system
M2»M3
not very effective
Muscarinic Receptor in blood vessel and arteries to vasodilate
this isn’t a thing :)
Muscarinic Receptor in endothelium to activate NO system
M3
Muscarinic Receptor for tracheal/bronchial constriction
M2=M3
Muscarinic Receptor to increase bronchial gland stimulation
M3, M2
M1 are generally found
in nerves
M2 are generally found
heart
nerves
smooth muscle
M3 are generally found
glands
smooth muscle
endothelium
M4 are generally found
CNS
M5 are generally found
CNS