Date published: 2026-4-1

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ASB-1 Inhibitors

ASB-1 inhibitors work by influencing the ubiquitin-proteasome system and related protein degradation pathways. This is because ASB-1 is an E3 ubiquitin ligase, and its main function is to mark proteins for degradation via the proteasome. Bortezomib, MG-132, Epoxomicin, and Lactacystin are all proteasome inhibitors. They inhibit the proteasome, preventing the degradation of proteins that have been marked by ubiquitination, which disrupts the role of ASB-1 in protein turnover. Eeyarestatin I is an inhibitor of the endoplasmic reticulum-associated degradation (ERAD) pathway, another protein degradation pathway. By inhibiting ERAD, Eeyarestatin I can disrupt the balance between protein synthesis and degradation, which can affect the function of ASB-1The ubiquitin-proteasome system is a key pathway that involves ASB-1, and the inhibitors of this system can effectively impede the ASB-1 protein function. For example, Ubistatins A and B inhibit the binding of ubiquitinated proteins to the proteasome, which in turn disrupts protein degradation and inhibits the function of E3 ubiquitin ligases like ASB-1. This mechanism is also shared by PR-619, a broad-spectrum deubiquitinase inhibitor, which disrupts the balance of ubiquitination and deubiquitination, key processes for the function of ASB-1.

The function of ASB-1 can also be influenced by chemicals that impact related pathways or processes. For instance, PYR-41, an irreversible inhibitor of ubiquitin-activating enzyme E1, influences the first step of the ubiquitination process and its inhibition can affect the function of E3 ubiquitin ligases like ASB-1. Similarly, MLN4924, a NEDD8-activating enzyme inhibitor, could affect ASB-1 function as NEDD8 modifies cullin proteins, which are part of the Cullin-RING E3 ubiquitin ligases that ASB-1 is a member of. Chloroquine, by disrupting lysosomal function, can affect the degradation of proteins marked by ASB-1. Auranofin, a Thioredoxin reductase inhibitor, can lead to oxidative stress, affecting the function of many proteins, including ASB-1.

SEE ALSO...

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Eeyarestatin I

412960-54-4sc-358130B
sc-358130
sc-358130A
sc-358130C
sc-358130D
sc-358130E
5 mg
10 mg
25 mg
50 mg
100 mg
500 mg
$114.00
$203.00
$354.00
$697.00
$1363.00
$5836.00
12
(1)

Eeyarestatin I is an inhibitor of the endoplasmic reticulum-associated degradation (ERAD) pathway, which is also involved in protein degradation. By inhibiting ERAD, Eeyarestatin I can disrupt the balance between protein synthesis and degradation, potentially affecting the function of ASB-1.

Leupeptin hemisulfate

103476-89-7sc-295358
sc-295358A
sc-295358D
sc-295358E
sc-295358B
sc-295358C
5 mg
25 mg
50 mg
100 mg
500 mg
10 mg
$73.00
$148.00
$316.00
$499.00
$1427.00
$101.00
19
(3)

Leupeptin is a protease inhibitor that can block the activity of various proteases. As ASB-1 is involved in protein degradation, inhibiting protease activity can disrupt the process and potentially affect ASB-1's function.

Epoxomicin

134381-21-8sc-201298C
sc-201298
sc-201298A
sc-201298B
50 µg
100 µg
250 µg
500 µg
$137.00
$219.00
$449.00
$506.00
19
(2)

Epoxomicin is another proteasome inhibitor. By inhibiting the proteasome, it can disrupt ASB-1's function in protein degradation and turnover.

Lactacystin

133343-34-7sc-3575
sc-3575A
200 µg
1 mg
$188.00
$575.00
60
(2)

Lactacystin is a specific proteasome inhibitor that can disrupt protein degradation. Like other proteasome inhibitors, it can potentially disrupt the function of ASB-1.

PR 619

2645-32-1sc-476324
sc-476324A
sc-476324B
1 mg
5 mg
25 mg
$77.00
$188.00
$431.00
1
(0)

PR-619 is a broad-spectrum deubiquitinase inhibitor. By inhibiting deubiquitinases, it can disrupt the balance of ubiquitination and deubiquitination processes, which are crucial for the function of E3 ubiquitin ligases like ASB-1.

Chloroquine Sulphate

132-73-0sc-337629
25 mg
$224.00
2
(0)

Chloroquine can affect the pH of intracellular compartments like lysosomes. By disrupting lysosomal function, it can affect the degradation of proteins marked for destruction by E3 ubiquitin ligases like ASB-1.

MLN 4924

905579-51-3sc-484814
1 mg
$286.00
1
(0)

MLN4924 is a NEDD8-activating enzyme inhibitor. NEDD8 is a ubiquitin-like protein that modifies cullin proteins. As cullin proteins are part of the Cullin-RING E3 ubiquitin ligases, which ASB-1 is a member of, inhibiting NEDD8 can affect ASB-1 function.

Auranofin

34031-32-8sc-202476
sc-202476A
sc-202476B
25 mg
100 mg
2 g
$153.00
$214.00
$4000.00
39
(2)

Auranofin is a Thioredoxin reductase inhibitor. This enzyme is necessary for maintaining the reduced state of many proteins. Its inhibition can lead to oxidative stress and thereby affect the function of many proteins, including ASB-1.