Fbxw12 Inhibitors
Chemical inhibitors of Fbxw12 operate through various mechanisms to impair the protein's function. Apigenin, a compound found in plant sources, disrupts cellular signaling pathways by inhibiting the PI3K/Akt pathway, a critical route for cell survival and proliferation. By doing so, Apigenin affects the downstream processes that Fbxw12 is involved in, leading to its functional inhibition. This occurs as the PI3K/Akt pathway is involved in the regulation of proteins like Fbxw12, and its inhibition can prevent the activation or prompt the degradation of such proteins. Alternatively, proteasome inhibitors such as MG132, Epoxomicin, Lactacystin, Bortezomib, Carfilzomib, and Ixazomib all prevent the degradation of ubiquitinated proteins by binding to the proteasome, thereby causing an accumulation of Fbxw12's substrates. This accumulation can lead to a functional inhibition of Fbxw12, as the protein becomes overwhelmed with substrates that cannot be further processed due to the blockade of proteasomal activity.
The functional inhibition of Fbxw12 can also be achieved by targeting other parts of the ubiquitination pathway. MLN4924 inhibits the NEDD8-activating enzyme, which is essential for the neddylation process that activates E3 ubiquitin ligases like Fbxw12. This inhibition prevents Fbxw12 from tagging substrates for degradation, effectively inhibiting its function. PYR-41 targets the ubiquitin-activating enzyme E1, an upstream enzyme in the ubiquitination cascade. Inhibition of E1 by PYR-41 leads to reduced ubiquitin activation, which is a prerequisite for Fbxw12 to exert its effects. Parthenolide disrupts the function of Fbxw12 by inhibiting the NF-κB transcription factor, potentially leading to reduced expression of proteins that interact with or regulate Fbxw12, which in turn disrupts the protein's ubiquitination process.
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| Product Name | CAS # | Catalog # | QUANTITY | Price | Citations | RATING |
|---|---|---|---|---|---|---|
Apigenin | 520-36-5 | sc-3529 sc-3529A sc-3529B sc-3529C sc-3529D sc-3529E sc-3529F | 5 mg 100 mg 1 g 5 g 25 g 100 g 1 kg | $33.00 $214.00 $734.00 $1151.00 $2348.00 $3127.00 $5208.00 | 22 | |
Apigenin inhibits the PI3K/Akt pathway, which is integral to cell survival and proliferation. By inhibiting this pathway, Apigenin can reduce the activity of proteins regulated by PI3K/Akt, such as Fbxw12, which may be stabilized or activated by this signaling route, leading to its functional inhibition by preventing its activation or promoting its degradation. | ||||||
MG-132 [Z-Leu- Leu-Leu-CHO] | 133407-82-6 | sc-201270 sc-201270A sc-201270B | 5 mg 25 mg 100 mg | $60.00 $265.00 $1000.00 | 163 | |
MG132 is a proteasome inhibitor that prevents the degradation of ubiquitinated proteins. Fbxw12, being an F-box protein, is part of the ubiquitin-proteasome system. By inhibiting the proteasome, MG132 can lead to the accumulation of proteins targeted by Fbxw12, which may cause feedback inhibition of Fbxw12's activity due to the buildup of its substrates. | ||||||
Epoxomicin | 134381-21-8 | sc-201298C sc-201298 sc-201298A sc-201298B | 50 µg 100 µg 250 µg 500 µg | $137.00 $219.00 $449.00 $506.00 | 19 | |
Epoxomicin is another proteasome inhibitor, which works similarly to MG132. It binds irreversibly to the proteasome, inhibiting the degradation of ubiquitinated proteins. This inhibition can cause an accumulation of Fbxw12 substrates, leading to a functional inhibition of Fbxw12 by overwhelming the protein with its undegraded substrates, and potentially altering its ubiquitination activity. | ||||||
Lactacystin | 133343-34-7 | sc-3575 sc-3575A | 200 µg 1 mg | $188.00 $575.00 | 60 | |
Lactacystin is a specific inhibitor of the proteasome that can lead to the accumulation of proteins ubiquitinated by Fbxw12. The build-up of these proteins can cause a functional inhibition of Fbxw12 by saturating its capacity to ubiquitinate substrates, thus inhibiting its function in the ubiquitin-proteasome pathway. | ||||||
Bortezomib | 179324-69-7 | sc-217785 sc-217785A | 2.5 mg 25 mg | $135.00 $1085.00 | 115 | |
Bortezomib is a proteasome inhibitor used to prevent the breakdown of polyubiquitinated proteins. By preventing the degradation of these proteins, Fbxw12 is functionally inhibited as it relies on the proteasome to execute its role in protein turnover. The accumulation of its substrates could lead to a negative feedback on Fbxw12's activity. | ||||||
Carfilzomib | 868540-17-4 | sc-396755 | 5 mg | $41.00 | ||
Carfilzomib is a selective proteasome inhibitor. By inhibiting the proteasome, it indirectly leads to the functional inhibition of Fbxw12. The accumulation of polyubiquitinated proteins, which are normally substrates for Fbxw12, can inhibit the function of Fbxw12 due to the build-up of these substrates and possible feedback inhibition mechanisms. | ||||||
MLN 4924 | 905579-51-3 | sc-484814 | 1 mg | $286.00 | 1 | |
MLN4924 inhibits the NEDD8-activating enzyme, which is necessary for the neddylation process that activates the E3 ubiquitin ligases. As Fbxw12 is part of an E3 ubiquitin ligase complex, inhibition by MLN4924 would prevent its activation through neddylation, leading to a functional inhibition of its activity in tagging substrates for degradation. | ||||||
Ubiquitin E1 Inhibitor, PYR-41 | 418805-02-4 | sc-358737 | 25 mg | $360.00 | 4 | |
PYR-41 is an inhibitor of ubiquitin-activating enzyme E1. By inhibiting E1, PYR-41 prevents the ubiquitination cascade, which is essential for the function of Fbxw12 as an E3 ligase. This leads to a functional inhibition of Fbxw12 because it cannot ubiquitinate its substrates without the upstream activation of ubiquitin by E1. | ||||||
Parthenolide | 20554-84-1 | sc-3523 sc-3523A | 50 mg 250 mg | $81.00 $306.00 | 32 | |
Parthenolide inhibits NF-κB, a transcription factor that can regulate the expression of various components in the ubiquitin-proteasome pathway. By inhibiting NF-κB, Parthenolide may decrease the expression of proteins that interact with or are involved in the regulation of Fbxw12, leading to its functional inhibition by disrupting the ubiquitination process it mediates. | ||||||
Ixazomib | 1072833-77-2 | sc-489103 sc-489103A | 10 mg 50 mg | $311.00 $719.00 | ||
Ixazomib is a proteasome inhibitor, and like other inhibitors of the proteasome, it can lead to the functional inhibition of Fbxw12 by preventing the degradation of ubiquitinated substrates. This can cause an accumulation of these substrates, which could inhibit Fbxw12's function by feedback inhibition. | ||||||