Date published: 2026-5-30

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Esp36 Activators

Chemical activators of Esp36 function by initiating various intracellular signaling pathways that lead to Esp36 phosphorylation. Phorbol 12-myristate 13-acetate (PMA) activates protein kinase C (PKC), which then phosphorylates Esp36, resulting in its activation. Similarly, forskolin acts by directly stimulating adenylate cyclase, which boosts the levels of cAMP within the cell. The surge in cAMP activates protein kinase A (PKA), which then phosphorylates and activates Esp36. Ionomycin, functioning as a calcium ionophore, raises intracellular calcium concentrations, thereby activating calmodulin-dependent kinases capable of phosphorylating Esp36. Isoproterenol operates through beta-adrenergic receptors to increase cAMP levels, subsequently activating PKA, which phosphorylates Esp36. Epinephrine, by engaging adrenergic receptors, also raises cAMP levels within the cell, leading to PKA activation and Esp36 phosphorylation.

Additional chemical activators include A23187 (Calcimycin) and N6-Benzoyladenosine. A23187 elevates intracellular calcium levels, potentially activating calcium-sensitive kinases that target Esp36. N6-Benzoyladenosine activates adenosine receptors that augment cAMP levels, leading to PKA activation and Esp36 phosphorylation. Rolipram hinders the breakdown of cAMP by inhibiting phosphodiesterase 4, which leads to sustained PKA activity and subsequent phosphorylation of Esp36. Atrial Natriuretic Peptide (ANP) binds to its receptor, leading to increased cGMP levels and activation of protein kinase G (PKG), which can phosphorylate Esp36. Sildenafil and Zaprinast both work by inhibiting phosphodiesterase 5, thus increasing cGMP levels, which activates PKG, leading to Esp36 phosphorylation. Lastly, IBMX, a nonspecific phosphodiesterase inhibitor, raises levels of both cAMP and cGMP, which can activate PKA or PKG, resulting in the phosphorylation and activation of Esp36. Each of these chemicals, through their unique mechanisms, ultimately contribute to the activation of Esp36 by facilitating its phosphorylation.

SEE ALSO...

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

PMA

16561-29-8sc-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
(6)

Esp36 can be activated by protein kinase C (PKC) which, when activated by Phorbol 12-myristate 13-acetate, phosphorylates target proteins. PKC-mediated phosphorylation of Esp36 leads to its functional activation.

Ionomycin

56092-82-1sc-3592
sc-3592A
1 mg
5 mg
$78.00
$270.00
80
(4)

As a calcium ionophore, ionomycin raises intracellular calcium levels which activate calmodulin-dependent kinases. These kinases can phosphorylate Esp36, resulting in its activation.

Isoproterenol Hydrochloride

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

Isoproterenol activates beta-adrenergic receptors leading to increased cAMP levels and subsequent activation of PKA. PKA then can target and phosphorylate Esp36, leading to its activation.

(−)-Epinephrine

51-43-4sc-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
(1)

By binding to adrenergic receptors, epinephrine increases intracellular cAMP, activating PKA which may phosphorylate and thereby activate Esp36.

A23187

52665-69-7sc-3591
sc-3591B
sc-3591A
sc-3591C
1 mg
5 mg
10 mg
25 mg
$55.00
$131.00
$203.00
$317.00
23
(1)

A23187 acts as a calcium ionophore, elevating intracellular calcium levels and potentially activating calcium-sensitive kinases that could phosphorylate and activate Esp36.

Rolipram

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

Rolipram inhibits phosphodiesterase 4, preventing cAMP breakdown, leading to activation of PKA. PKA can phosphorylate Esp36, leading to its activation.

Zaprinast (M&B 22948)

37762-06-4sc-201206
sc-201206A
25 mg
100 mg
$105.00
$250.00
8
(2)

By inhibiting phosphodiesterase 5, zaprinast increases cGMP levels in the cell, leading to the activation of PKG, which may phosphorylate and activate Esp36.

IBMX

28822-58-4sc-201188
sc-201188B
sc-201188A
200 mg
500 mg
1 g
$260.00
$350.00
$500.00
34
(1)

IBMX inhibits various phosphodiesterases, leading to increased levels of both cAMP and cGMP, which in turn can activate PKA or PKG. These kinases can then phosphorylate and activate Esp36.