Date published: 2025-11-25

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FBXO16 Inhibitors

Chemical inhibitors of FBXO16 can impede its function in the ubiquitin-proteasome system (UPS), a cellular pathway responsible for degrading misfolded, damaged, or regulatory proteins. Proteasome inhibitors such as MG132, Bortezomib, Epoxomicin, Lactacystin, MLN2238 (Ixazomib), Carfilzomib, Delanzomib, Marizomib, Oprozomib, Withaferin A, and Celastrol disrupt this protein degradation machinery. FBXO16, as part of an E3 ubiquitin ligase complex, tags proteins with ubiquitin molecules, signaling them for degradation by the proteasome. By inhibiting the proteasome, these chemicals can cause an accumulation of proteins that FBXO16 would typically mark for degradation. This accumulation can saturate the UPS and impair the turnover of proteins, leading to a functional inhibition of FBXO16. The buildup of ubiquitinated proteins due to proteasome inhibition can also feedback inhibit the activity of FBXO16 by hindering its access to substrates or by altering its regulatory state. Furthermore, PR-619, a broad-spectrum deubiquitinase inhibitor, can also modulate the activity of FBXO16. Deubiquitinases are enzymes that remove ubiquitin molecules from proteins, often rescuing them from degradation. By inhibiting deubiquitinases, PR-619 can lead to an abnormal accumulation of ubiquitinated proteins. This aberrant ubiquitination can, in turn, obstruct the normal function of FBXO16 by either directly altering its substrates or by disrupting the finely tuned balance of ubiquitination and deubiquitination that FBXO16 relies on to execute its role in protein turnover. Consequently, the inhibition of deubiquitinases can indirectly inhibit the function of FBXO16 by preventing it from tagging proteins for degradation effectively, thereby functionally inhibiting the protein's role in the UPS.

Items 1 to 10 of 11 total

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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
$56.00
$260.00
$980.00
163
(3)

MG132 is a proteasome inhibitor that can stabilize proteins targeted for degradation. FBXO16 is an F-box protein that is part of the ubiquitin-proteasome system. By inhibiting the proteasome, MG132 could lead to an accumulation of proteins that are normally ubiquitinated and degraded by the complex that includes FBXO16, potentially disrupting FBXO16s ability to function properly in protein turnover.

Bortezomib

179324-69-7sc-217785
sc-217785A
2.5 mg
25 mg
$132.00
$1064.00
115
(2)

Bortezomib is another proteasome inhibitor. Similar to MG132, its inhibition of the proteasome could indirectly inhibit FBXO16 by causing a build-up of proteins that FBXO16 would normally help ubiquitinate and degrade, thereby hindering its functional role.

Epoxomicin

134381-21-8sc-201298C
sc-201298
sc-201298A
sc-201298B
50 µg
100 µg
250 µg
500 µg
$134.00
$215.00
$440.00
$496.00
19
(2)

Epoxomicin is a selective proteasome inhibitor. It can lead to the accumulation of polyubiquitinated proteins, which could interfere with the normal function of FBXO16 as it plays a role in tagging proteins for proteasomal degradation.

Lactacystin

133343-34-7sc-3575
sc-3575A
200 µg
1 mg
$165.00
$575.00
60
(2)

Lactacystin is a proteasome inhibitor that could inhibit the degradation pathway in which FBXO16 is involved by preventing the turnover of substrates that FBXO16 targets, which could impair the function of FBXO16.

Ixazomib

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

Ixazomib is a proteasome inhibitor that can inhibit the degradation of proteins involved in the ubiquitin-proteasome system, where FBXO16 functions. This could indirectly inhibit FBXO16 by limiting its ability to tag substrates for degradation.

Carfilzomib

868540-17-4sc-396755
5 mg
$40.00
(0)

As a proteasome inhibitor, Carfilzomib could indirectly inhibit FBXO16 by causing an accumulation of substrates that FBXO16 would typically ubiquitinate, potentially disrupting the proteins normal function.

Delanzomib, free base

847499-27-8sc-396774
sc-396774A
5 mg
10 mg
$160.00
$300.00
(0)

Delanzomib, a proteasome inhibitor, could prevent the degradation of proteins that FBXO16 targets for ubiquitination, indirectly inhibiting FBXO16 by disrupting its role in protein turnover.

Oprozomib

935888-69-0sc-477447
2.5 mg
$280.00
(0)

Oprozomib, by inhibiting the proteasome, can lead to the accumulation of ubiquitinated proteins, potentially inhibiting FBXO16s function in the ubiquitin-proteasome degradation pathway.

Withaferin A

5119-48-2sc-200381
sc-200381A
sc-200381B
sc-200381C
1 mg
10 mg
100 mg
1 g
$127.00
$572.00
$4090.00
$20104.00
20
(1)

Withaferin A, although not a traditional proteasome inhibitor, has been shown to disrupt proteasomal activity, which could interfere with FBXO16s role in protein ubiquitination and degradation.

Celastrol, Celastrus scandens

34157-83-0sc-202534
10 mg
$155.00
6
(1)

Celastrol has been reported to inhibit proteasomal activity and could indirectly inhibit FBXO16 by causing a backlog of proteins that FBXO16 would normally help to degrade.