PYR-41 is a ubiquitin-activating enzyme inhibitor (UBE1 inhibitor). PYR-41 blocks ubiquitination reactions but paradoxically leads to the accumulation of high MW ubiquitinated proteins. PYR-41 also mediated cross-linking of specific protein kinases (Bcr-Abl, Jak2) to inhibit their signaling activity. PYR-41 has demonstrated anti-tumor activity in animal studies, partially selective protein cross-linking may represent an alternate approach to affect signal transduction modules and ubiquitin cycle-regulatory proteins for cancer therapy. (Biochem Pharmacol. 2011 Aug 15;82(4):341-9.) (Note: PYR-41 in solution may exist as a mixture of E- and Z- isomers. HPLC may show two peaks depending on conditions).
相关文献及参考
[2]. Kapuria V, et al. Protein cross-linking as a novel mechanism of action of a ubiquitin-activating enzyme inhibitor with anti-tumor activity. Biochem Pharmacol. 2011 Aug 15;82(4):341-9.
[1]. Yang Y, et al. Inhibitors of ubiquitin-activating enzyme (E1), a new class of potential cancer therapeutics. Cancer Res. 2007 Oct 1;67(19):9472-81.
[1]. Yang Y, et al. Inhibitors of ubiquitin-activating enzyme (E1), a new class of potential cancer therapeutics. Cancer Res. 2007 Oct 1;67(19):9472-81.
[2]. Kapuria V, et al. Protein cross-linking as a novel mechanism of action of a ubiquitin-activating enzyme inhibitor with anti-tumor activity. Biochem Pharmacol. 2011 Aug 15;82(4):341-9.
安全信息
Storage condition
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).