Date published: 2026-4-26

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Munc13-3 Activators

Munc13-3 activators encompass a variety of chemical classes that interact with cellular signaling pathways implicated in synaptic function and neurotransmission. These chemicals can modulate intracellular calcium levels, cyclic AMP (cAMP) concentration, or the activity of neurotransmitter receptors and ion channels. Through these actions, they indirectly influence the conditions that are conducive to the optimal activity of Munc13-3 in the nerve terminal.

Calcium dynamics are central to synaptic vesicle priming, with Munc13-3 being sensitive to changes in intracellular calcium concentration. Compounds like BAPTA-AM, Bay K 8644, and various calcium channel blockers modify calcium influx or buffering, thereby altering the activity landscape for Munc13-3. Enhancing cAMP levels, as achieved by Forskolin and Rolipram, can affect various proteins involved in synaptic plasticity, potentially upregulating the pathways in which Munc13-3 operates. Blockers of ion channels, such as 4-Aminopyridine and Omega-conotoxin GVIA, may increase synaptic demand and compensatory mechanisms, indirectly affecting Munc13-3's role in synaptic vesicle cycling.

SEE ALSO...

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

BAPTA/AM

126150-97-8sc-202488
sc-202488A
25 mg
100 mg
$138.00
$458.00
61
(2)

A calcium chelator that can buffer intracellular calcium levels, indirectly maintaining the calcium-dependent activation of Munc13-3 necessary for vesicle priming.

Forskolin

66575-29-9sc-3562
sc-3562A
sc-3562B
sc-3562C
sc-3562D
5 mg
50 mg
1 g
2 g
5 g
$78.00
$153.00
$740.00
$1413.00
$2091.00
73
(3)

An activator of adenylyl cyclase, increasing cAMP, which can modulate synaptic plasticity mechanisms potentially involving Munc13-3.

Rolipram

61413-54-5sc-3563
sc-3563A
5 mg
50 mg
$77.00
$216.00
18
(1)

A phosphodiesterase inhibitor that raises cAMP levels, potentially enhancing synaptic transmission processes that involve Munc13-3.

(±)-Bay K 8644

71145-03-4sc-203324
sc-203324A
sc-203324B
1 mg
5 mg
50 mg
$84.00
$196.00
$817.00
(0)

A calcium channel agonist that can increase intracellular calcium concentration, thereby potentially promoting the calcium-dependent function of Munc13-3.

(S)-3,5-DHPG

162870-29-3sc-204256
sc-204256A
5 mg
10 mg
$210.00
$353.00
2
(1)

An agonist for metabotropic glutamate receptors which can enhance synaptic efficacy, possibly requiring enhanced Munc13-3 activity for vesicle cycling.

Nifedipine

21829-25-4sc-3589
sc-3589A
1 g
5 g
$59.00
$173.00
15
(1)

A calcium channel blocker that indirectly affects synaptic transmission; its presence may alter the calcium dynamics that Munc13-3 responds to.

Ryanodine

15662-33-6sc-201523
sc-201523A
1 mg
5 mg
$223.00
$799.00
19
(2)

A modulator of the ryanodine receptor that can affect calcium release from intracellular stores, indirectly impacting Munc13-3 function.

Isoproterenol Hydrochloride

51-30-9sc-202188
sc-202188A
100 mg
500 mg
$28.00
$38.00
5
(0)

A beta-adrenergic receptor agonist that can increase cAMP and thereby modulate neurotransmitter release mechanisms involving Munc13-3.

Verapamil

52-53-9sc-507373
1 g
$374.00
(0)

A calcium channel blocker which can modulate calcium influx and thus, may indirectly affect the calcium-dependent regulation of Munc13-3.

Nicardipine hydrochloride

54527-84-3sc-202731
sc-202731A
1 g
5 g
$33.00
$83.00
5
(2)

Another calcium channel blocker with potential to modulate the activity of calcium-dependent processes, including those associated with Munc13-3.