Rab 3C Activators
Rab 3C is a member of the Ras superfamily of small GTPases, which are key regulators of intracellular vesicle trafficking, particularly in the context of neurotransmitter release and hormone secretion. These proteins cycle between an inactive GDP-bound state and an active GTP-bound state, with their activity regulated by guanine nucleotide exchange factors (GEFs) that facilitate the exchange of GDP for GTP, and GTPase-activating proteins (GAPs) that stimulate GTP hydrolysis, returning the protein to its inactive state. Rab 3C, specifically, plays a crucial role in the regulation of vesicle docking and fusion at the plasma membrane, processes that are essential for the efficient release of neurotransmitters and hormones.
The activation of Rab 3C is intricately linked to its participation in these vesicular trafficking pathways. Its activation is mediated by the direct binding of GTP, which prompts a conformational change that allows Rab 3C to interact with various effector proteins. These interactions are critical for targeting vesicles to their appropriate destinations and for mediating the tethering and docking processes that precede vesicle fusion with the plasma membrane. The activation of Rab 3C can be influenced indirectly by various signaling pathways that modulate cellular cAMP levels, such as those activated by forskolin, IBMX, and PMA, among others. These pathways do not activate Rab 3C directly but influence its activity by altering the cellular environment in a way that promotes the association of Rab 3C with its effectors or enhances the activities of its GEFs. Through these mechanisms, Rab 3C plays a pivotal role in ensuring the fidelity and efficiency of vesicular transport, a process fundamental to cellular communication and homeostasis.
SEE ALSO...
| Product Name | CAS # | Catalog # | QUANTITY | Price | Citations | RATING |
|---|---|---|---|---|---|---|
Forskolin | 66575-29-9 | sc-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 | |
Forskolin directly increases intracellular cAMP levels, which can lead to the activation of cAMP-dependent pathways. This elevation in cAMP is crucial for enhancing the activity of Rab 3C by promoting its localization to specific membrane sites where it facilitates vesicle trafficking. | ||||||
IBMX | 28822-58-4 | sc-201188 sc-201188B sc-201188A | 200 mg 500 mg 1 g | $260.00 $350.00 $500.00 | 34 | |
IBMX inhibits phosphodiesterases, leading to an increase in intracellular cAMP levels. Elevated cAMP indirectly activates Rab 3C by stimulating pathways that enhance its guanine nucleotide exchange factor (GEF) activity, necessary for its active GTP-bound state. | ||||||
PMA | 16561-29-8 | sc-3576 sc-3576A sc-3576B sc-3576C sc-3576D | 1 mg 5 mg 10 mg 25 mg 100 mg | $41.00 $132.00 $214.00 $500.00 $948.00 | 119 | |
PMA activates protein kinase C (PKC), which plays a role in the regulation of vesicle trafficking. PKC activation can lead to the phosphorylation of proteins that interact with Rab 3C, promoting its activation and its role in vesicle docking and fusion. | ||||||
Cilostamide (OPC 3689) | 68550-75-4 | sc-201180 sc-201180A | 5 mg 25 mg | $92.00 $357.00 | 16 | |
Cilostamide selectively inhibits phosphodiesterase 3 (PDE3), leading to an increase in intracellular cAMP levels. This elevation in cAMP can indirectly activate Rab 3C by promoting the phosphorylation of proteins that regulate its activity in vesicle transport. | ||||||
Rolipram | 61413-54-5 | sc-3563 sc-3563A | 5 mg 50 mg | $77.00 $216.00 | 18 | |
Rolipram selectively inhibits phosphodiesterase 4 (PDE4), increasing intracellular cAMP levels. The rise in cAMP indirectly activates Rab 3C by stimulating pathways that enhance its guanine nucleotide exchange activity, crucial for its activation and function. | ||||||
Zaprinast (M&B 22948) | 37762-06-4 | sc-201206 sc-201206A | 25 mg 100 mg | $105.00 $250.00 | 8 | |
Zaprinast inhibits phosphodiesterases, particularly PDE5, leading to increased cAMP and cGMP levels. Elevated cAMP and cGMP can indirectly activate Rab 3C by enhancing signaling pathways that promote its activity in vesicle trafficking and fusion. | ||||||
Adenosine | 58-61-7 | sc-291838 sc-291838A sc-291838B sc-291838C sc-291838D sc-291838E sc-291838F | 1 g 5 g 100 g 250 g 1 kg 5 kg 10 kg | $34.00 $48.00 $300.00 $572.00 $1040.00 $2601.00 $4682.00 | 1 | |
Adenosine activates adenosine receptors, leading to an increase in intracellular cAMP levels through the inhibition of adenylate cyclase. This increase in cAMP indirectly activates Rab 3C by stimulating pathways that enhance its activation and function in vesicle trafficking. | ||||||
Spectinomycin dihydrochloride pentahydrate | 22189-32-8 | sc-203279 sc-203279A | 5 g 10 g | $84.00 $122.00 | 9 | |
SNAP releases nitric oxide (NO), which can lead to the activation of soluble guanylate cyclase (sGC) and an increase in cGMP levels. Elevated cGMP indirectly activates Rab 3C by influencing pathways that regulate its role in vesicular transport and docking. | ||||||
Lithium | 7439-93-2 | sc-252954 | 50 g | $214.00 | ||
Lithium chloride influences the Wnt signaling pathway, which is involved in numerous cellular processes including vesicle trafficking. Through modulation of this pathway, lithium chloride can indirectly activate Rab 3C by affecting proteins and mechanisms that enhance its trafficking role. | ||||||