Date published: 2026-3-22

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UBE2L3 Activators

UBE2L3, or ubiquitin-conjugating enzyme E2 L3, is an enzyme that is involved in the ubiquitination process, which tags proteins for degradation by the proteasome or alters their functional state. Direct chemical activators for UBE2L3 are not commonly described, as its activity is usually regulated through protein-protein interactions and post-translational modifications. The methods employed by UBE2L3 Activators are intricately tied to their structural features. Typically, these activators possess specific chemical motifs that enable selective binding to UBE2L3, ensuring a targeted and efficient response. The specificity of this interaction is crucial for the precise modulation of UBE2L3's enzymatic activity in the ubiquitination process. Advanced structural techniques, such as X-ray crystallography or nuclear magnetic resonance (NMR) spectroscopy, can be employed to unravel the details of the binding sites and conformational alterations induced by UBE2L3 Activators.

Understanding these molecular intricacies not only enhances our knowledge of UBE2L3 activation but also contributes to a broader understanding of cellular processes related to protein turnover, cellular homeostasis, and the regulation of essential pathways involved in maintaining protein quality control. The structural features of UBE2L3 Activators are meticulously crafted, often comprising unique chemical motifs that facilitate selective binding to the enzyme. This selectivity ensures a focused and effective response, avoiding unintended interactions with other cellular components. To delve into the molecular intricacies of these interactions, advanced structural techniques, such as X-ray crystallography or nuclear magnetic resonance (NMR) spectroscopy, can be applied. These methods unveil the precise binding sites and the induced conformational changes, providing a detailed blueprint of the UBE2L3 activation process.

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)

MG132 is a proteasome inhibitor that can indirectly increase ubiquitin-conjugated proteins' levels, potentially influencing UBE2L3 activity by feedback mechanisms.

Ubiquitin E1 Inhibitor, PYR-41

418805-02-4sc-358737
25 mg
$360.00
4
(1)

This compound is a specific inhibitor of the ubiquitin-activating enzyme E1 and could indirectly affect UBE2L3 activity by altering ubiquitin availability.

Lactacystin

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

Another proteasome inhibitor, Lactacystin, could indirectly affect UBE2L3 by causing the accumulation of ubiquitinated proteins and altering proteostatic feedback loops.

Thalidomide

50-35-1sc-201445
sc-201445A
100 mg
500 mg
$111.00
$357.00
8
(0)

Known for its teratogenic effects, Thalidomide and its derivatives (IMiDs) have been shown to induce the degradation of specific proteins by the proteasome, which could impact UBE2L3 activity indirectly by modifying the cellular protein degradation landscape.

Bortezomib

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

Velcade is a dipeptidyl boronic acid analog that inhibits the 26S proteasome complex, potentially affecting UBE2L3 activity by altering the turnover and degradation of ubiquitinated proteins.

PTP1B Inhibitor

765317-72-4sc-222227
sc-222227A
5 mg
25 mg
$231.00
$936.00
13
(2)

This small molecule inhibits the deubiquitinating enzyme USP14 and could affect UBE2L3 activity by modifying the dynamics of protein ubiquitination and deubiquitination.

Betulinic Acid

472-15-1sc-200132
sc-200132A
25 mg
100 mg
$117.00
$344.00
3
(1)

A naturally occurring pentacyclic triterpenoid that can induce apoptosis in cancer cells and may affect various components of the ubiquitin-proteasome system, potentially including UBE2L3.

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)

A steroidal lactone found in Withania somnifera (Ashwagandha), Withaferin A is known to disrupt proteasome activity and could, therefore, modulate UBE2L3 function indirectly.

Tunicamycin

11089-65-9sc-3506A
sc-3506
5 mg
10 mg
$172.00
$305.00
66
(3)

An inhibitor of N-linked glycosylation, Tunicamycin might affect the stability and function of proteins involved in the ubiquitin-proteasome pathway, potentially influencing UBE2L3 activity.