MSY4 Inhibitors
Chemical inhibitors of MSY4 function through various mechanisms to impede its activity within the cell. Oligomycin A disrupts ATP synthesis by targeting the mitochondrial ATP synthase complex, leading to a reduction in the cellular ATP levels required for MSY4's RNA-binding activity and stability. Without sufficient ATP, MSY4 cannot maintain its functional conformation, resulting in inhibition. H-89 operates by inhibiting protein kinase A (PKA), a kinase known to phosphorylate MSY4. When PKA is inhibited, MSY4 remains unphosphorylated, preventing it from achieving the conformation necessary for its proper function. Similarly, Staurosporine, a broad-spectrum kinase inhibitor, and Roscovitine, which inhibits cyclin-dependent kinases, work to prevent phosphorylation events that are essential for MSY4's activity. Genistein, as a tyrosine kinase inhibitor, and Staurosporine also reduce phosphorylation of MSY4, albeit with less specificity, affecting its activity and regulatory roles.
Further regulation of MSY4 is linked to other signaling pathways and cellular mechanisms. Okadaic Acid inhibits protein phosphatases PP1 and PP2A, which are responsible for dephosphorylating proteins. By doing so, it can lead to an abnormal phosphorylation state of MSY4, hindering its normal function. LY294002 and Wortmannin both inhibit phosphoinositide 3-kinases (PI3K), which may be upstream of MSY4 in the signaling cascade, thus reducing its activation. PD98059 and U0126 specifically target MEK enzymes within the MAPK/ERK pathway, a signaling route that can modulate MSY4 activity. If MSY4 is indeed regulated by the MAPK/ERK pathway, its activity will be diminished as a result of these inhibitors. Lastly, Rapamycin, an inhibitor of the mammalian target of rapamycin (mTOR) pathway, which plays a role in protein synthesis and cell growth, can have a downregulating effect on MSY4 if it is involved in these processes. SP600125 adds another layer of regulation by inhibiting the c-Jun N-terminal kinase (JNK), thus potentially reducing MSY4 activity if it is regulated by JNK signaling pathways. Each of these chemicals, through their targeted inhibition of specific enzymes and pathways, can lead to a decrease in the functional activity of MSY4.
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| Product Name | CAS # | Catalog # | QUANTITY | Price | Citations | RATING |
|---|---|---|---|---|---|---|
Oligomycin A | 579-13-5 | sc-201551 sc-201551A sc-201551B sc-201551C sc-201551D | 5 mg 25 mg 100 mg 500 mg 1 g | $179.00 $612.00 $1203.00 $5202.00 $9364.00 | 26 | |
Oligomycin A targets the ATP synthase complex in mitochondria, which is essential for ATP production. MSY4 requires ATP for its RNA-binding activity and stabilization within the cell, hence inhibition of ATP synthesis by Oligomycin A reduces the energy availability for MSY4, leading to its functional inhibition. | ||||||
Genistein | 446-72-0 | sc-3515 sc-3515A sc-3515B sc-3515C sc-3515D sc-3515E sc-3515F | 100 mg 500 mg 1 g 5 g 10 g 25 g 100 g | $45.00 $164.00 $200.00 $402.00 $575.00 $981.00 $2031.00 | 46 | |
Genistein is a tyrosine kinase inhibitor. While it is less specific, tyrosine kinases can phosphorylate MSY4 and regulate its activity. By inhibiting these kinases, Genistein can reduce the phosphorylation and thus the functional activity of MSY4. | ||||||
Staurosporine | 62996-74-1 | sc-3510 sc-3510A sc-3510B | 100 µg 1 mg 5 mg | $82.00 $153.00 $396.00 | 113 | |
Staurosporine is a broad-spectrum kinase inhibitor. It can inhibit a wide range of kinases that could phosphorylate MSY4, which is critical for MSY4's function in RNA binding and regulation. This broad inhibition can lead to decreased MSY4 activity. | ||||||
Roscovitine | 186692-46-6 | sc-24002 sc-24002A | 1 mg 5 mg | $94.00 $265.00 | 42 | |
Roscovitine specifically inhibits cyclin-dependent kinases (CDKs). If CDKs are involved in phosphorylating MSY4, their inhibition by Roscovitine would prevent MSY4's phosphorylation-dependent activity. | ||||||
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 potent inhibitor of protein phosphatases PP1 and PP2A, which can dephosphorylate a wide range of proteins. If MSY4 function is regulated by dephosphorylation, the inhibition of these phosphatases would lead to aberrant MSY4 activity, effectively inhibiting its normal function. | ||||||
LY 294002 | 154447-36-6 | sc-201426 sc-201426A | 5 mg 25 mg | $123.00 $400.00 | 148 | |
LY294002 is a phosphoinositide 3-kinases (PI3K) inhibitor. If MSY4 is downstream of PI3K signaling, LY294002 inhibition of PI3K can reduce MSY4 activity by preventing its activation through this pathway. | ||||||
PD 98059 | 167869-21-8 | sc-3532 sc-3532A | 1 mg 5 mg | $40.00 $92.00 | 212 | |
PD98059 is a specific inhibitor of the mitogen-activated protein kinases (MEK), which is part of the MAPK/ERK pathway. MSY4 may be regulated by this pathway, and thus inhibition by PD98059 can lead to reduced MSY4 activity. | ||||||
Wortmannin | 19545-26-7 | sc-3505 sc-3505A sc-3505B | 1 mg 5 mg 20 mg | $67.00 $223.00 $425.00 | 97 | |
Wortmannin is another inhibitor of PI3K. Similar to LY294002, if MSY4 activity is regulated by the PI3K pathway, inhibition by Wortmannin would lead to decreased MSY4 activity. | ||||||
Rapamycin | 53123-88-9 | sc-3504 sc-3504A sc-3504B | 1 mg 5 mg 25 mg | $63.00 $158.00 $326.00 | 233 | |
Rapamycin specifically inhibits the mammalian target of rapamycin (mTOR) pathway, which is involved in protein synthesis and cell growth. If MSY4 function is related to this pathway, Rapamycin can inhibit MSY4's role in these processes. | ||||||
U-0126 | 109511-58-2 | sc-222395 sc-222395A | 1 mg 5 mg | $64.00 $246.00 | 136 | |
U0126 specifically inhibits MEK1/2, preventing the activation of the MAPK/ERK pathway. If MSY4 functions downstream of this pathway, U0126 would inhibit its activity. | ||||||