Synapsin IIb Inhibitors
Chemical inhibitors of Synapsin IIb act by modulating the phosphorylation status of this protein, which is crucial for its role in synaptic vesicle dynamics. Phorbol 12-myristate 13-acetate (PMA) is a unique compound in this context, as it activates protein kinase C (PKC), leading to increased phosphorylation of Synapsin IIb. This phosphorylation inhibits the ability of Synapsin IIb to bind synaptic vesicles, thereby affecting neurotransmitter release. In contrast, Ro 31-8220 serves as a potent PKC inhibitor, preventing the phosphorylation of Synapsin IIb and maintaining it in a state conducive to synaptic vesicle association. Similarly, Gö 6983, with its broad-spectrum PKC inhibitory activity, and Bisindolylmaleimide I, with its selective action, both prevent the phosphorylation of Synapsin IIb, thus impeding its vesicle mobilization activity. Staurosporine, another potent protein kinase inhibitor, also targets PKC among other kinases, thereby inhibiting Synapsin IIb phosphorylation. Chelerythrine Chloride specifically inhibits PKC, which in turn prevents Synapsin IIb phosphorylation, maintaining its unphosphorylated state necessary for normal synaptic function.
Furthermore, Ruboxistaurin targets PKCβ, a specific isoform of PKC that is likely involved in Synapsin IIb phosphorylation. By inhibiting PKCβ, Ruboxistaurin reduces Synapsin IIb phosphorylation. H-89 and KT 5720 are inhibitors of protein kinase A (PKA), another kinase that can phosphorylate Synapsin IIb. Inhibition by these compounds results in decreased phosphorylation of Synapsin IIb. KN-62 and Autocamtide-2-related inhibitory peptide are selective for calcium/calmodulin-dependent protein kinase II (CaMKII), which can also phosphorylate Synapsin IIb. The inhibition of CaMKII by these compounds leads to reduced phosphorylation and functional inhibition of Synapsin IIb's role in neurotransmitter release. Lastly, LY294002 inhibits phosphoinositide 3-kinases (PI3K), which indirectly affects Synapsin IIb activity by modulating the activity of downstream kinases responsible for its phosphorylation.
SEE ALSO...
| Product Name | CAS # | Catalog # | QUANTITY | Price | Citations | RATING |
|---|---|---|---|---|---|---|
PMA | 16561-29-8 | sc-3576 sc-3576A sc-3576B sc-3576C sc-3576D | 1 mg 5 mg 10 mg 25 mg 100 mg | $41.00 $132.00 $214.00 $500.00 $948.00 | 119 | |
Phorbol 12-myristate 13-acetate (PMA) activates protein kinase C (PKC), which in turn phosphorylates Synapsin IIb. This phosphorylation can inhibit the ability of Synapsin IIb to bind to synaptic vesicles and affect neurotransmitter release. | ||||||
Ro 31-8220 | 138489-18-6 | sc-200619 sc-200619A | 1 mg 5 mg | $92.00 $245.00 | 17 | |
Ro 31-8220 is a potent PKC inhibitor that can prevent the phosphorylation of Synapsin IIb by PKC. Inhibition of phosphorylation preserves Synapsin IIb in an unphosphorylated state, which is necessary for its association with synaptic vesicles and normal function. | ||||||
Gö 6983 | 133053-19-7 | sc-203432 sc-203432A sc-203432B | 1 mg 5 mg 10 mg | $105.00 $299.00 $474.00 | 15 | |
Gö 6983 is a broad-spectrum PKC inhibitor. By inhibiting PKC, Gö 6983 can reduce the phosphorylation of Synapsin IIb, thus functionally inhibiting its vesicle mobilization activity. | ||||||
Bisindolylmaleimide I (GF 109203X) | 133052-90-1 | sc-24003A sc-24003 | 1 mg 5 mg | $105.00 $242.00 | 36 | |
Bisindolylmaleimide I selectively inhibits PKC, which could prevent Synapsin IIb from being phosphorylated. The absence of phosphorylation on Synapsin IIb can inhibit its normal role in neurotransmitter release. | ||||||
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 potent inhibitor of protein kinases, including PKC. By inhibiting PKC, Staurosporine can inhibit the phosphorylation of Synapsin IIb and thus its function in synaptic vesicle dynamics. | ||||||
Chelerythrine chloride | 3895-92-9 | sc-3547 sc-3547A | 5 mg 25 mg | $90.00 $317.00 | 17 | |
Chelerythrine is an inhibitor of PKC. By inhibiting PKC, Chelerythrine can prevent the phosphorylation of Synapsin IIb, maintaining it in a state that inhibits its ability to regulate neurotransmitter release. | ||||||
Ruboxistaurin | 169939-94-0 | sc-507364 | 25 mg | $1080.00 | ||
Ruboxistaurin is a selective inhibitor of PKCβ, which may be involved in phosphorylating Synapsin IIb. By inhibiting PKCβ, Ruboxistaurin can reduce Synapsin IIb phosphorylation and its associated synaptic vesicle release. | ||||||
KT 5720 | 108068-98-0 | sc-3538 sc-3538A sc-3538B | 50 µg 100 µg 500 µg | $138.00 $220.00 $972.00 | 47 | |
KT 5720 is a selective PKA inhibitor. By inhibiting PKA, KT 5720 can decrease the phosphorylation of Synapsin IIb, which is crucial for its ability to modulate neurotransmitter release. | ||||||
KN-62 | 127191-97-3 | sc-3560 | 1 mg | $136.00 | 20 | |
KN-62 is a selective inhibitor of calcium/calmodulin-dependent protein kinase II (CaMKII). CaMKII can phosphorylate Synapsin IIb, and its inhibition by KN-62 can lead to the functional inhibition of Synapsin IIb's role in synaptic vesicle trafficking. | ||||||
LY 294002 | 154447-36-6 | sc-201426 sc-201426A | 5 mg 25 mg | $123.00 $400.00 | 148 | |
LY294002 is a potent inhibitor of phosphoinositide 3-kinases (PI3K). PI3K signaling can affect the activity of downstream kinases that phosphorylate Synapsin IIb, and its inhibition can thus lead to a functional inhibition of Synapsin IIb. | ||||||