R9AP Activators
R9AP employ various mechanisms to enhance its activity by modulating the cellular levels of cyclic AMP (cAMP) and protein kinase A (PKA) activity. Forskolin, a labdane diterpene, is known for its ability to directly activate adenylate cyclase, the enzyme responsible for converting ATP to cAMP. An increase in cAMP levels leads to the activation of PKA, which can phosphorylate R9AP, thus enhancing its activity. Similarly, IBMX, a non-selective inhibitor of phosphodiesterases, prevents the breakdown of cAMP, sustaining its cellular concentration and facilitating the activation of PKA, which in turn may activate R9AP through phosphorylation. Prostaglandin E2 (PGE2) achieves a similar outcome by binding to its specific G-protein-coupled receptors, thereby stimulating adenylate cyclase to produce more cAMP and activate PKA, which can then phosphorylate R9AP.
Epinephrine and isoproterenol, both agonists at beta-adrenergic receptors, activate adenylate cyclase via Gs protein-coupled receptors, resulting in elevated cAMP and subsequent PKA activation, leading to the phosphorylation of R9AP. Dopamine engages with D1-like receptors, and histamine interacts with H2 receptors, both resulting in increased adenylate cyclase activity, raising cAMP levels, and activating PKA, which potentially leads to R9AP activation. Rolipram specifically inhibits phosphodiesterase 4, thereby preserving cAMP levels within the cell and leading to PKA activation, which may phosphorylate R9AP. Glucagon, by binding to its receptor, stimulates adenylate cyclase, increasing cAMP and thus PKA activity, potentially affecting R9AP activity. Terbutaline and salbutamol, as beta2-adrenergic agonists, increase cAMP via adenylate cyclase activation, with the resulting PKA activation leading to phosphorylation of R9AP. Lastly, caffeine, by inhibiting phosphodiesterases non-selectively, maintains cAMP levels, leading to PKA-mediated activation of R9AP through phosphorylation.
| Product Name | CAS # | Catalog # | QUANTITY | Price | Citations | RATING |
|---|---|---|---|---|---|---|
IBMX | 28822-58-4 | sc-201188 sc-201188B sc-201188A | 200 mg 500 mg 1 g | $260.00 $350.00 $500.00 | 34 | |
Isobutylmethylxanthine (IBMX) inhibits phosphodiesterases, preventing the breakdown of cAMP. The resultant increase in cAMP levels can activate PKA, which may subsequently phosphorylate and activate R9AP. | ||||||
PGE2 | 363-24-6 | sc-201225 sc-201225C sc-201225A sc-201225B | 1 mg 5 mg 10 mg 50 mg | $57.00 $159.00 $275.00 $678.00 | 37 | |
Prostaglandin E2 (PGE2) binds to its G-protein-coupled receptors, leading to an increase in intracellular cAMP levels via adenylate cyclase activation. The increase in cAMP activates PKA, which could lead to the phosphorylation and activation of R9AP. | ||||||
(−)-Epinephrine | 51-43-4 | sc-205674 sc-205674A sc-205674B sc-205674C sc-205674D | 1 g 5 g 10 g 100 g 1 kg | $41.00 $104.00 $201.00 $1774.00 $16500.00 | ||
Epinephrine binds to the beta-adrenergic receptors, which are coupled to Gs proteins, leading to the activation of adenylate cyclase and an increase in cAMP. Higher cAMP levels activate PKA, potentially leading to the activation of R9AP through phosphorylation. | ||||||
Dopamine | 51-61-6 | sc-507336 | 1 g | $290.00 | ||
Dopamine can bind to D1-like dopamine receptors, which are linked to the activation of adenylate cyclase, increasing cAMP levels. Elevated cAMP can activate PKA, which may phosphorylate and activate R9AP. | ||||||
Histamine, free base | 51-45-6 | sc-204000 sc-204000A sc-204000B | 1 g 5 g 25 g | $94.00 $283.00 $988.00 | 7 | |
Histamine can bind to H2 receptors, which activate adenylate cyclase, increasing cAMP levels. The subsequent activation of PKA can lead to the phosphorylation and activation of R9AP. | ||||||
Isoproterenol Hydrochloride | 51-30-9 | sc-202188 sc-202188A | 100 mg 500 mg | $28.00 $38.00 | 5 | |
Isoproterenol is a synthetic beta-adrenergic receptor agonist that activates adenylate cyclase, thereby increasing cAMP levels. The activation of PKA by cAMP can lead to the phosphorylation and activation of R9AP. | ||||||
Rolipram | 61413-54-5 | sc-3563 sc-3563A | 5 mg 50 mg | $77.00 $216.00 | 18 | |
Rolipram inhibits phosphodiesterase 4, leading to an increase in cAMP levels within cells. This increase in cAMP can activate PKA, which may lead to the phosphorylation and activation of R9AP. | ||||||
Terbutaline Hemisulfate | 23031-32-5 | sc-204911 sc-204911A | 1 g 5 g | $92.00 $378.00 | 2 | |
Terbutaline is a beta2-adrenergic agonist that activates adenylate cyclase and increases cAMP levels. Increased cAMP activates PKA, which can phosphorylate and activate R9AP. | ||||||
Salbutamol | 18559-94-9 | sc-253527 sc-253527A | 25 mg 50 mg | $94.00 $141.00 | ||
Salbutamol is a selective beta2-adrenergic receptor agonist that stimulates adenylate cyclase, leading to increased cAMP levels. The cAMP-dependent activation of PKA can result in the phosphorylation and activation of R9AP. | ||||||
Caffeine | 58-08-2 | sc-202514 sc-202514A sc-202514B sc-202514C sc-202514D | 50 g 100 g 250 g 1 kg 5 kg | $33.00 $67.00 $97.00 $192.00 $775.00 | 13 | |
Caffeine is a non-selective phosphodiesterase inhibitor, leading to increased cAMP levels by preventing its degradation. The increased cAMP levels activate PKA, which may result in phosphorylation and activation of R9AP. | ||||||