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PAC-1 315183-21-2
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Chemical Information
Product name:PAC-1 Purity:98% min
CAS NO:315183-21-2 Solubility:Soluble in DMSO, not in water
Molecular Formula:C23H28N4O2 Package:Package according to customer requirements
Molecular Weight:392.49 Storage:Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).
Quality control
PAC-1 activates procaspase-7 in a less efficient manner with EC50 of 4.5 μM. Elevated caspase 3 level in cancer cell lines allows PAC-1 to selectively induce apoptosis in a manner proportional to procaspase-3 concentration with IC50 of 0.35 μM for NCI-H226 cells to ~3.5 μM for UACC-62 cells. PAC-1 induces apoptosis in the primary cancerous cells with IC50 values of 3 nM to 1.41 μM, more potently than in the adjacent noncancerous cells with IC50 of 5.02 μM to 9.98 μM, which is also directly related to the distinct procaspase-3 concentration. PAC-1 activates procaspase-3 by chelating zinc ions, thus relieving the zinc-mediated inhibition and allowing procaspase-3 to auto-activate itself to caspase-3.  PAC-1 is capable to induce cell death in Bax/Bak double-knockout cells and Bcl-2 and Bcl-xL-overexpressing cells with the same efficacy as its wild-type counterpart in a delayed manner. PAC-1 induces cytochrome c release in a caspase-3 independent manner, which subsequently triggers downstream caspase-3 activation and cell death. PAC-1 can not induce cell death and caspase-3 activation in Apaf-1 knockout cells, suggesting that apoptosome formation is essential for caspase-3 activation by PAC-1-mediated cell death. 
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