Date published: 2026-5-17

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SMEK1 Activators

SMEK1 Activators are distinct chemical entities that are designed to intensify the functional performance of SMEK1, a protein that plays a pivotal role in cellular processes including cell growth, apoptosis, and metabolism. These activators function through several direct and indirect pathways. Direct enhancement of SMEK1's functionality occurs through the inhibition of protein phosphatases such as PP2A, PP1, and PP4. Several compounds, including Epigallocatechin Gallate, Fostriecin, and Cantharidin, are potent inhibitors of these phosphatases. By inhibiting these phosphatases, they increase the overall phosphorylation, which can directly enhance the activation of SMEK1.

Indirect activators like Ionomycin, A23187, Forskolin, Isoprenaline, PMA, DAG, and cAMP operate by influencing various cellular processes that lead to the phosphorylation and activation of SMEK1. Ionomycin and A23187 increase intracellular calcium levels, activating calcium/calmodulin-dependent protein kinases (CaMKs) that can phosphorylate and activate SMEK1. Forskolin, Isoprenaline and cAMP increase cAMP levels, leading to the activation of Protein Kinase A (PKA). PKA can phosphorylate and activate SMEK1. PMA and DAG are potent activators of Protein Kinase C (PKC). PKC, like PKA and CaMKs, can phosphorylate and activate SMEK1.

SEE ALSO...

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

(−)-Epigallocatechin Gallate

989-51-5sc-200802
sc-200802A
sc-200802B
sc-200802C
sc-200802D
sc-200802E
10 mg
50 mg
100 mg
500 mg
1 g
10 g
$43.00
$73.00
$126.00
$243.00
$530.00
$1259.00
11
(1)

Epigallocatechin Gallate (EGCG) inhibits PP2A, a phosphatase that dephosphorylates SMEK1. Inhibition of PP2A can result in enhanced phosphorylation and activation of SMEK1.

Fostriecin

87860-39-7sc-202160
50 µg
$265.00
9
(1)

Fostriecin is a selective inhibitor of PP2A and PP4. By inhibiting these phosphatases, it can increase the phosphorylation and activation of SMEK1.

Cantharidin

56-25-7sc-201321
sc-201321A
25 mg
100 mg
$89.00
$279.00
6
(1)

Cantharidin is a potent inhibitor of PP2A. By inhibiting PP2A, it can increase the phosphorylation and activation of SMEK1.

Ionomycin, free acid

56092-81-0sc-263405
sc-263405A
1 mg
5 mg
$96.00
$264.00
2
(2)

Ionomycin increases intracellular calcium levels, which activates calcium/calmodulin-dependent protein kinases (CaMKs). CaMKs can phosphorylate and activate SMEK1.

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 is a calcium ionophore that increases intracellular calcium levels, activating CaMKs that can phosphorylate and activate SMEK1.

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)

Forskolin activates adenylate cyclase, increasing cAMP levels and subsequently activating PKA. PKA can phosphorylate and activate SMEK1.

Isoproterenol Hydrochloride

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

Isoprenaline is a β-adrenergic receptor agonist which increases cAMP levels, leading to the activation of PKA. PKA can phosphorylate and activate SMEK1.

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)

PMA is a potent activator of Protein Kinase C (PKC). PKC can phosphorylate and activate SMEK1.

1,2-Dioctanoyl-sn-glycerol

60514-48-9sc-202397
sc-202397A
10 mg
50 mg
$47.00
$254.00
2
(1)

DAG activates Protein Kinase C (PKC). PKC can phosphorylate and activate SMEK1.

Adenosine 3′,5′-cyclic monophosphate

60-92-4sc-217584
sc-217584A
sc-217584B
sc-217584C
sc-217584D
sc-217584E
100 mg
250 mg
5 g
10 g
25 g
50 g
$116.00
$179.00
$265.00
$369.00
$629.00
$1150.00
(1)

cAMP activates PKA. PKA can phosphorylate and enhance the activation of SMEK1.