PBF Inhibitors
Chemical inhibitors of PBF can exert their inhibitory effects through various mechanisms impacting different cellular pathways and processes. Leptomycin B, for example, targets the nuclear export protein CRM1/exportin 1, essential for the transport of proteins like PBF between the nucleus and cytoplasm. By inhibiting CRM1, Leptomycin B causes PBF to accumulate in the nucleus, which functionally inhibits its cytoplasmic roles. Similarly, MLN4924 disrupts the cell cycle progression by inhibiting the NEDD8-activating enzyme, which is responsible for the neddylation process that controls protein turnover. This interference can prevent the proper regulation of proteins involved in cell cycle progression, including PBF, by disrupting neddylation-dependent pathways. Proteasome inhibitors such as Bortezomib and MG132 contribute to the functional inhibition of PBF by inducing the accumulation of proteins that are typically marked for degradation. This accumulation can include misfolded or dysfunctional PBF, leading to an impediment of cellular proteostasis and a subsequent decrease in the functional form of PBF.
Further, LDN-57444 inhibits the ubiquitin C-terminal hydrolase L1, a deubiquitinating enzyme that plays a critical role in the ubiquitin-proteasome pathway. Inhibition of this enzyme can lead to the dysregulation of proteins like PBF that are integral to cell cycle control. Pyr-41 targets the ubiquitin-activating enzyme E1, suppressing ubiquitin conjugation to proteins, which can inhibit the function of PBF by disrupting the ubiquitin-proteasome system. Histone deacetylase inhibitors such as Vorinostat (Suberoylanilide Hydroxamic Acid), Trichostatin A, and Sodium Butyrate alter chromatin structure and gene expression, which can indirectly inhibit PBF by affecting the transcriptional environment of genes associated with PBF's function. Additionally, Chloroquine and 3-Methyladenine inhibit autophagy, a process that regulates the turnover of cellular components. By blocking autophagy, these chemicals indirectly inhibit PBF through the accumulation of proteins that would otherwise be degraded. Lastly, Concanamycin A inhibits the V-ATPase protein complex, affecting the acidification of intracellular organelles and thereby inhibiting the function of proteins like PBF by altering their cellular trafficking and processing.
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| Product Name | CAS # | Catalog # | QUANTITY | Price | Citations | RATING |
|---|---|---|---|---|---|---|
Leptomycin B | 87081-35-4 | sc-358688 sc-358688A sc-358688B | 50 µg 500 µg 2.5 mg | $107.00 $416.00 $1248.00 | 35 | |
Leptomycin B inhibits the nuclear export protein CRM1/exportin 1, which is essential for the nuclear-cytoplasmic transport of proteins including PBF. The inhibition of CRM1 leads to the accumulation of PBF in the nucleus, thereby functionally inhibiting its cytoplasmic roles. | ||||||
MLN 4924 | 905579-51-3 | sc-484814 | 1 mg | $286.00 | 1 | |
MLN4924 inhibits NEDD8-activating enzyme, which is crucial for the neddylation process that regulates protein turnover. By inhibiting this enzyme, MLN4924 can prevent the proper regulation of proteins involved in cell cycle progression, potentially including PBF, by disrupting their neddylation-dependent pathways. | ||||||
Bortezomib | 179324-69-7 | sc-217785 sc-217785A | 2.5 mg 25 mg | $135.00 $1085.00 | 115 | |
Bortezomib is a proteasome inhibitor that can lead to the accumulation of proteins that are normally degraded, which may include misfolded or dysfunctional PBF. This accumulation indirectly inhibits PBF's function by overwhelming the proteostasis mechanisms, leading to reduced functional protein levels. | ||||||
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 similar to Bortezomib and can also lead to an indirect inhibition of PBF by causing an accumulation of proteins within the cell, including potentially misfolded PBF, which disrupts normal protein turnover and function. | ||||||
UCH-L1 Inhibitor Inhibitor | 668467-91-2 | sc-356182 | 10 mg | $204.00 | 1 | |
LDN-57444 is a potent inhibitor of the ubiquitin C-terminal hydrolase L1 (UCHL1), a deubiquitinating enzyme. By inhibiting UCHL1, this compound can disrupt the ubiquitin-proteasome pathway, potentially leading to the dysregulation of proteins like PBF that are involved in cell cycle control. | ||||||
Ubiquitin E1 Inhibitor, PYR-41 | 418805-02-4 | sc-358737 | 25 mg | $360.00 | 4 | |
Pyr-41 inhibits the ubiquitin-activating enzyme E1, leading to the suppression of ubiquitin conjugation to target proteins. This action can indirectly inhibit the function of PBF by disrupting the ubiquitin-proteasome system that regulates protein degradation and localization. | ||||||
Suberoylanilide Hydroxamic Acid | 149647-78-9 | sc-220139 sc-220139A | 100 mg 500 mg | $133.00 $275.00 | 37 | |
Vorinostat is a histone deacetylase inhibitor that alters chromatin structure and gene expression. By changing the acetylation status of histones, it can indirectly inhibit PBF by affecting the transcriptional environment of genes associated with PBF's function in thyroid hormone metabolism. | ||||||
Trichostatin A | 58880-19-6 | sc-3511 sc-3511A sc-3511B sc-3511C sc-3511D | 1 mg 5 mg 10 mg 25 mg 50 mg | $152.00 $479.00 $632.00 $1223.00 $2132.00 | 33 | |
Trichostatin A is another histone deacetylase inhibitor that can change the expression and function of various proteins involved in cell cycle and apoptosis. Its effect on histone acetylation can indirectly inhibit PBF by impacting the cellular pathways that PBF is involved in. | ||||||
Sodium Butyrate | 156-54-7 | sc-202341 sc-202341B sc-202341A sc-202341C | 250 mg 5 g 25 g 500 g | $31.00 $47.00 $84.00 $222.00 | 19 | |
Sodium Butyrate acts as a histone deacetylase inhibitor, thereby potentially altering the transcription of various genes. Its general effects on gene expression can indirectly inhibit PBF by influencing the cellular pathways that are crucial for PBF's activity. | ||||||
Chloroquine | 54-05-7 | sc-507304 | 250 mg | $69.00 | 2 | |
Chloroquine is known to inhibit autophagy by preventing autophagosome-lysosome fusion. Since autophagy can regulate the turnover of cellular components, including proteins, the inhibition of autophagy can lead to an accumulation of proteins and indirectly inhibit PBF function by disrupting cellular homeostasis. | ||||||