Rabaptin-5β Inhibitors
Chemical inhibitors of Rabaptin-5β disrupt its function by targeting various molecular pathways and cellular processes that are essential for its role in vesicle trafficking. GTPγS, a non-hydrolyzable analog of GTP, binds to Rab GTPases in their active form, irreversibly activating them. This persistent activation prevents Rabaptin-5β from interacting with the GTPases necessary for its function. Conversely, GDP keeps Rab GTPases in their inactive state, thereby also inhibiting Rabaptin-5β, which requires the active form of Rab GTPases to facilitate vesicle movement. Brefeldin A operates by impeding ARF-dependent activation of Rab GTPases, thus indirectly restraining the activity of Rabaptin-5β by disrupting upstream signaling. Similarly, SecinH3 targets cytohesins to inhibit ARF activation, leading to a downstream effect on Rabaptin-5β's role in vesicle trafficking.
In addition to these direct inhibitors of Rab GTPase activation, several compounds interfere with processes that are ancillary to Rabaptin-5β's function. Dynasore hinders dynamin-dependent endocytosis, a prerequisite for the vesicle trafficking that Rabaptin-5β regulates. Meanwhile, ML141 and CID 1067700, as inhibitors of Cdc42 and Rac1, respectively, impede signaling pathways that converge on or influence the vesicle trafficking pathways where Rabaptin-5β is active. NSC23766, another Rac1 inhibitor, similarly affects the GTPase signaling essential for the proper vesicle formation and movement that Rabaptin-5β facilitates. IKK-16, by inhibiting IκB kinase, indirectly impacts Rabaptin-5β's function by altering the NF-κB signaling pathway, which can affect vesicle trafficking. Exo1 disrupts the Exocyst complex, crucial for vesicle tethering, a process in which Rabaptin-5β is implicated. Lastly, Y-27632 and SMIFH2 target the actin cytoskeleton dynamics, which are essential for vesicle movement and docking, and by doing so, they indirectly impede the function of Rabaptin-5β in these processes.
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| Product Name | CAS # | Catalog # | QUANTITY | Price | Citations | RATING |
|---|---|---|---|---|---|---|
Guanosine 5′-O-(3-thiotriphosphate) tetralithium salt | 94825-44-2 | sc-202639 | 10 mg | $465.00 | ||
Rabaptin-5β, a Rab effector protein, requires GTP-bound Rab proteins for its function. GTPγS irreversibly activates Rab proteins, preventing Rabaptin-5β from interacting with its target GTPases in their active form, thereby inhibiting its function. | ||||||
Guanosine 5′-diphosphate sodium salt hydrate (GDP) | 146-91-8 non-salt | sc-507402 | 10 mg | $645.00 | ||
As Rabaptin-5β functions with Rab GTPases, GDP, by binding to these GTPases, keeps them in their inactive form, thus inhibiting Rabaptin-5β from performing its role in vesicle trafficking. | ||||||
Brefeldin A | 20350-15-6 | sc-200861C sc-200861 sc-200861A sc-200861B | 1 mg 5 mg 25 mg 100 mg | $31.00 $53.00 $124.00 $374.00 | 25 | |
This agent disrupts the ARF-dependent activation of Rab GTPases; since Rabaptin-5β functions downstream of these GTPases, Brefeldin A's action results in the functional inhibition of Rabaptin-5β. | ||||||
Dynamin Inhibitor I, Dynasore | 304448-55-3 | sc-202592 | 10 mg | $89.00 | 44 | |
Rabaptin-5β is involved in endocytic vesicle trafficking. Dynasore inhibits dynamin-dependent endocytosis, thereby preventing Rabaptin-5β from exerting its effects on vesicle fusion and trafficking. | ||||||
ML 141 | 71203-35-5 | sc-362768 sc-362768A | 5 mg 25 mg | $137.00 $512.00 | 7 | |
This inhibitor of Cdc42, a small GTPase, indirectly inhibits Rabaptin-5β by blocking the Cdc42-dependent signaling pathways that may intersect with Rabaptin-5β's role in vesicle formation and trafficking. | ||||||
2-(Benzoylcarbamothioylamino)-5,5-dimethyl-4,7-dihydrothieno[2,3-c]pyran-3-carboxylic Acid | 314042-01-8 | sc-503400 | 10 mg | $300.00 | ||
As a selective inhibitor of Rac1, this compound indirectly inhibits Rabaptin-5β by disrupting Rac1-mediated signaling pathways that are potentially involved in the same cellular processes as Rabaptin-5β. | ||||||
SecinH3 | 853625-60-2 | sc-203260 | 5 mg | $278.00 | 6 | |
By inhibiting cytohesins, SecinH3 disrupts ARF activation, which is crucial for Rab GTPase function. This, in turn, indirectly inhibits Rabaptin-5β by impairing the vesicular trafficking processes it is involved in. | ||||||
IKK 16 | 1186195-62-9 | sc-204009 sc-204009A | 10 mg 50 mg | $223.00 $942.00 | 2 | |
IKK-16 is an inhibitor of IκB kinase, which is involved in the NF-κB signaling pathway. By disrupting this pathway, it indirectly inhibits Rabaptin-5β, as NF-κB can influence the trafficking pathways where Rabaptin-5β operates. | ||||||
Exo1 | 461681-88-9 | sc-200752 sc-200752A | 10 mg 50 mg | $84.00 $297.00 | 4 | |
Exo1 inhibits Exocyst complex function, which is essential for vesicle tethering to the plasma membrane, a process that Rabaptin-5β regulates. Therefore, Exo1 indirectly inhibits the functional role of Rabaptin-5β in vesicle trafficking. | ||||||
Y-27632, free base | 146986-50-7 | sc-3536 sc-3536A | 5 mg 50 mg | $186.00 $707.00 | 88 | |
As a ROCK inhibitor, Y-27632 disrupts actin cytoskeleton dynamics, which are essential for vesicle movement and docking. As Rabaptin-5β is involved in vesicle trafficking, its function is indirectly inhibited by this compound. | ||||||