Date published: 2026-3-3

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Josephin-3 Inhibitors

Josephin-3 is a member of the Josephin family of proteins, a set of proteins that have been identified for their unique deubiquitinating enzymatic activity. Deubiquitinating enzymes, or DUBs, are crucial components in the ubiquitin-proteasome system (UPS), a major cellular machinery responsible for protein degradation. The UPS plays an essential role in maintaining protein homeostasis within the cell by tagging misfolded or damaged proteins with ubiquitin chains, signaling them for degradation. Josephin-3, by virtue of its deubiquitinating activity, can cleave these ubiquitin tags, thereby influencing the fate of the target protein. This means that Josephin-3 can modulate the turnover of specific proteins, impacting various cellular processes, from cell cycle regulation to response to cellular stress.

In the context of Josephin-3 inhibitors, these are chemical entities designed to specifically target and modulate the enzymatic activity of Josephin-3. By inhibiting its function, these molecules can affect the ubiquitin-dependent protein degradation process. Such modulation can lead to the accumulation or reduction of specific proteins within the cell, depending on the context. These inhibitors, therefore, provide a valuable tool for researchers keen on understanding the precise role of Josephin-3 in cellular protein homeostasis. By studying the effects of Josephin-3 inhibitors, insights can be gleaned into the broader workings of the UPS and the myriad cellular processes it influences. Moreover, understanding how these inhibitors interact with Josephin-3 can shed light on the protein's structure, function, and its potential role in various cellular pathways.

SEE ALSO...

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

MG-132 [Z-Leu- Leu-Leu-CHO]

133407-82-6sc-201270
sc-201270A
sc-201270B
5 mg
25 mg
100 mg
$60.00
$265.00
$1000.00
163
(3)

Proteasome inhibitor that may affect ubiquitin-proteasome system-related proteins. If "Josephin-3" functions within this system, its expression might be modulated.

Lactacystin

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

Another proteasome inhibitor that could potentially impact proteins involved in the ubiquitin-proteasome pathway.

Bortezomib

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

Known to inhibit the proteasomal pathway. Could indirectly affect the expression of proteins with Josephin domains if they are part of this pathway.

Ixazomib

1072833-77-2sc-489103
sc-489103A
10 mg
50 mg
$311.00
$719.00
(0)

A derivative of Bortezomib, inhibits proteasomal functions.

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)

A potent, selective, and irreversible proteasome inhibitor. Might impact Josephin domain proteins if they are involved in proteasomal degradation.

Withaferin A

5119-48-2sc-200381
sc-200381A
sc-200381B
sc-200381C
1 mg
10 mg
100 mg
1 g
$130.00
$583.00
$4172.00
$20506.00
20
(1)

Has been shown to inhibit proteasomal activity. Could affect proteins with roles in this pathway.

Carfilzomib

868540-17-4sc-396755
5 mg
$41.00
(0)

Proteasome inhibitor that might influence the ubiquitin-proteasome system and related proteins.

Ruxolitinib

941678-49-5sc-364729
sc-364729A
sc-364729A-CW
5 mg
25 mg
25 mg
$251.00
$500.00
$547.00
16
(1)

While primarily a JAK inhibitor, off-target effects could potentially impact other pathways, including those related to protein degradation.

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)

Has diverse cellular effects, including modulation of protein degradation pathways. If "Josephin-3" is part of these pathways, its expression might be affected.

Celastrol, Celastrus scandens

34157-83-0sc-202534
10 mg
$158.00
6
(1)

Known to modulate the proteasome and heat shock response, which could indirectly influence Josephin domain proteins.