FASP1 Inhibitors
Chemical inhibitors of FASP1 can act through various mechanisms to achieve functional inhibition. Okadaic Acid, Calyculin A, Cantharidin, Microcystin-LR, Endothall, Tautomycin, and Fostriecin all share a common mechanism of action by targeting protein phosphatases such as PP1 and PP2A. These phosphatases are responsible for the dephosphorylation of proteins, which is a critical regulatory mechanism for protein activity and cellular processes. By inhibiting PP1 and PP2A, these chemicals can cause an accumulation of phosphorylated proteins within the cell, including FASP1. When FASP1 remains in a hyperphosphorylated state, its activity can be hampered, effectively leading to functional inhibition. The phosphorylation status of FASP1 is crucial for its activity, and the prevention of dephosphorylation through the inhibition of these phosphatases can thus directly affect its function.
Another group of chemical inhibitors, including Ionomycin, Rubratoxin B, Cyclosporin A, FK506 (Tacrolimus), and Sirolimus (Rapamycin), work by disrupting cellular signaling pathways that indirectly influence the function of FASP1. Ionomycin, for instance, elevates intracellular calcium levels, which can activate a cascade of calcium-dependent protein kinases and phosphatases, ultimately leading to the modification of FASP1 activity through changes in phosphorylation patterns. Rubratoxin B directly inhibits PP2A, influencing the phosphorylation state of FASP1 and its activity. Cyclosporin A and FK506 form complexes with intracellular proteins to inhibit the phosphatase activity of calcineurin, which can lead to increased phosphorylation and inactivation of target proteins, including FASP1. Lastly, Sirolimus binds to FKBP12 and inhibits mTOR, a master regulator of protein synthesis and cell growth, thereby indirectly affecting the functional state of FASP1.
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| Product Name | CAS # | Catalog # | QUANTITY | Price | Citations | RATING |
|---|---|---|---|---|---|---|
Okadaic Acid | 78111-17-8 | sc-3513 sc-3513A sc-3513B | 25 µg 100 µg 1 mg | $291.00 $530.00 $1800.00 | 78 | |
Okadaic Acid is a specific inhibitor of protein phosphatases 1 (PP1) and 2A (PP2A). Inhibition of PP2A can lead to increased phosphorylation levels of various proteins. Given that FASP1 activity is regulated by phosphorylation, the inhibition of PP2A by Okadaic Acid can result in the functional inhibition of FASP1 by maintaining it in a hyperphosphorylated and inactive state. | ||||||
Calyculin A | 101932-71-2 | sc-24000 sc-24000A | 10 µg 100 µg | $163.00 $800.00 | 59 | |
Calyculin A, like Okadaic Acid, is an inhibitor of PP1 and PP2A. By preventing the dephosphorylation of proteins that are substrates to these phosphatases, Calyculin A can cause hyperphosphorylation of FASP1, which may lead to its functional inhibition. | ||||||
Cantharidin | 56-25-7 | sc-201321 sc-201321A | 25 mg 100 mg | $89.00 $279.00 | 6 | |
Cantharidin is another potent inhibitor of PP1 and PP2A. By blocking the action of these phosphatases, Cantharidin can cause an accumulation of phosphorylated proteins, potentially including FASP1, thereby leading to its inactivation. | ||||||
Endothall | 145-73-3 | sc-201325 sc-201325A | 20 mg 100 mg | $49.00 $203.00 | 1 | |
Endothall disrupts the action of PP2A. This disruption can impact FASP1 by preventing its dephosphorylation, which is necessary for its proper function, thereby inhibiting FASP1 activity. | ||||||
Fostriecin | 87860-39-7 | sc-202160 | 50 µg | $265.00 | 9 | |
Fostriecin selectively inhibits PP2A over PP1. This selective inhibition can alter the phosphorylation balance within the cell, potentially inhibiting FASP1 through hyperphosphorylation. | ||||||
Ionomycin | 56092-82-1 | sc-3592 sc-3592A | 1 mg 5 mg | $78.00 $270.00 | 80 | |
Ionomycin is a calcium ionophore that elevates intracellular calcium levels. Elevated calcium levels can activate various calcium-dependent protein kinases and protein phosphatases, which can alter the phosphorylation state of FASP1, leading to its inhibition. | ||||||
Cyclosporin A | 59865-13-3 | sc-3503 sc-3503-CW sc-3503A sc-3503B sc-3503C sc-3503D | 100 mg 100 mg 500 mg 10 g 25 g 100 g | $63.00 $92.00 $250.00 $485.00 $1035.00 $2141.00 | 69 | |
Cyclosporin A is an immunosuppressant that forms a complex with cyclophilin, inhibiting the activity of calcineurin. Inhibition of calcineurin affects the phosphorylation state of numerous proteins, which could include FASP1, leading to its functional inhibition. | ||||||
FK-506 | 104987-11-3 | sc-24649 sc-24649A | 5 mg 10 mg | $78.00 $151.00 | 9 | |
FK506 binds to FKBP12, creating a complex that inhibits calcineurin. As calcineurin is involved in dephosphorylating various proteins, its inhibition by FK506 complex can lead to the functional inhibition of FASP1. | ||||||
Rapamycin | 53123-88-9 | sc-3504 sc-3504A sc-3504B | 1 mg 5 mg 25 mg | $63.00 $158.00 $326.00 | 233 | |
Sirolimus binds to FKBP12 and inhibits mTOR, which is involved in protein synthesis and cell cycle progression. By inhibiting mTOR, Sirolimus can impact the functionality of proteins involved in these processes, including FASP1, leading to its inhibition. | ||||||