Date published: 2026-5-12

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PA28β Activators

PA28β Activators encompass a diverse array of chemical compounds that indirectly enhance the functional activity of PA28β, a protein involved in the regulation of proteasome activity and protein degradation. Forskolin, by elevating intracellular cAMP levels, leads to the activation of PKA, which in turn can phosphorylate substrates that indirectly promote the activity of PA28β. Similarly, Epigallocatechin gallate, primarily through its antioxidative properties, stabilizes the cellular environment, which is beneficial for the structural and functional integrity of PA28β. Curcumin, affecting inflammatory pathways, particularly through NF-κB signaling, and Resveratrol, through SIRT1 activation, both contribute to the modulation of proteasome function, indirectly enhancing PA28β activity. Sodium butyrate, acting as a histone deacetylase inhibitor, alters protein acetylation and thereby potentially influences PA28β activity. Proteasome inhibitors like MG132 and Bortezomib, despite their primary inhibitory action, can induce compensatory mechanisms that lead to enhanced PA28β function.

Rapamycin, as an mTOR inhibitor, shifts cellular reliance towards proteasome-mediated degradation, indirectly promoting PA28β activity. Lithium chloride's role in modulating GSK-3β indirectly affects PA28β by altering protein degradation pathways. Sulforaphane, activating the Nrf2 pathway, enhances PA28β activity in response to oxidative stress by regulating proteasome-dependent degradation. Metformin, through AMPK activation, influences cellular energy regulation, which is closely linked to protein degradation processes involving PA28β. Finally, Pioglitazone, a PPARγ agonist, indirectly enhances PA28β activity by affecting metabolic pathways, highlighting the interconnectedness of metabolic regulation and proteasome function. Collectively, these activators, through their targeted effects on various cellular signaling and metabolic pathways, facilitate the enhancement of PA28β-mediated functions, crucial for maintaining cellular proteostasis.

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Items 1 to 10 of 11 total

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Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

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, a labdane diterpenoid, enhances the activity of PA28β by increasing cAMP levels within cells. Elevated cAMP levels activate protein kinase A (PKA), which can phosphorylate various substrates. This phosphorylation cascade can indirectly lead to the enhanced activation of PA28β, which is involved in the regulation of proteasome activity and protein degradation.

(−)-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)

This catechin, predominantly found in green tea, can modulate cellular antioxidant pathways. By reducing oxidative stress, Epigallocatechin gallate may indirectly stabilize the structure and function of PA28β, as oxidative damage can impair the protein degradation process in which PA28β is involved.

Curcumin

458-37-7sc-200509
sc-200509A
sc-200509B
sc-200509C
sc-200509D
sc-200509F
sc-200509E
1 g
5 g
25 g
100 g
250 g
1 kg
2.5 kg
$37.00
$69.00
$109.00
$218.00
$239.00
$879.00
$1968.00
47
(1)

Curcumin, a principal component of turmeric, influences inflammatory pathways, particularly NF-κB signaling. By modulating this pathway, Curcumin can indirectly affect the activity of PA28β, which is linked to the proteasome-dependent degradation of proteins, including those involved in inflammation.

Resveratrol

501-36-0sc-200808
sc-200808A
sc-200808B
100 mg
500 mg
5 g
$80.00
$220.00
$460.00
64
(2)

Resveratrol, a stilbenoid found in grapes, acts as an activator of SIRT1, a protein deacetylase. Through the activation of SIRT1, Resveratrol can indirectly influence the activity of PA28β by modulating the degradation of various regulatory proteins that control proteasome function.

Sodium Butyrate

156-54-7sc-202341
sc-202341B
sc-202341A
sc-202341C
250 mg
5 g
25 g
500 g
$31.00
$47.00
$84.00
$222.00
19
(3)

This short-chain fatty acid acts as a histone deacetylase inhibitor. Sodium butyrate can indirectly enhance the activity of PA28β by altering the acetylation status of proteins involved in proteasome regulation, thereby potentially affecting the protein degradation pathway.

Rapamycin

53123-88-9sc-3504
sc-3504A
sc-3504B
1 mg
5 mg
25 mg
$63.00
$158.00
$326.00
233
(4)

As an mTOR inhibitor, Rapamycin can indirectly enhance PA28β activity by influencing cellular pathways related to protein synthesis and degradation. Reduced mTOR activity may lead to increased dependence on proteasome-mediated degradation, where PA28β plays a crucial role.

Lithium

7439-93-2sc-252954
50 g
$214.00
(0)

This inorganic compound is known for its role in modulating GSK-3β, a kinase implicated in various cellular processes. Lithium chloride's inhibition of GSK-3β can indirectly affect PA28β activity by altering the degradation pathways of proteins regulated by GSK-3β.

Bortezomib

179324-69-7sc-217785
sc-217785A
2.5 mg
25 mg
$135.00
$1085.00
115
(2)

Bortezomib is a well-known proteasome inhibitor. Similar to MG132, its inhibitory action on the proteasome can lead to compensatory upregulation or enhanced activity of PA28β, which is part of the proteasome complex.

D,L-Sulforaphane

4478-93-7sc-207495A
sc-207495B
sc-207495C
sc-207495
sc-207495E
sc-207495D
5 mg
10 mg
25 mg
1 g
10 g
250 mg
$153.00
$292.00
$489.00
$1325.00
$8465.00
$933.00
22
(1)

Found in cruciferous vegetables, Sulforaphane activates the Nrf2 pathway, which is involved in cellular responses to oxidative stress. By activating Nrf2, Sulforaphane may indirectly enhance PA28β activity through the regulation of proteasome-dependent protein degradation under oxidative stress conditions.

Metformin

657-24-9sc-507370
10 mg
$79.00
2
(0)

Primarily known as an antidiabetic drug, Metformin can activate AMPK, which is involved in cellular energy homeostasis. The activation of AMPK by Metformin can lead to enhanced PA28β activity by influencing cellular energy regulation and protein degradation pathways.