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規格	1mg 5mg 25mg 100mg
CAS	88321-09-9
別名	N/A
化學名	ethyl (2S,3S)-3-[[(2S)-4-methyl-1-(3-methylbutylamino)-1-oxopentan-2-yl]carbamoyl]oxirane-2-carboxylate
分子式	C17H30N2O5
分子量	342.43
溶解度	≥ 17.1215mg/mL in DMSO
儲存條件	Store at -20°C
General tips	For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.
Shipping Condition	Evaluation sample solution : ship with blue ice All other available size: ship with RT , or blue ice upon request

產品描述：

E-64d, a membrane permeant derivative of E-64c, a thiol protease inhibitor1, was tested for ability to inhibit calpain activity in intact platelets.

E-64d inhibits severe acute respiratory syndrome coronavirus (SARS-CoV) and SARS-CoV-2 surface glycoprotein incorporation into pseudotyped vesicular stomatitis virus (VSV) particles in Vero cells, an effect that is reduced by expression of the serine protease TMPRSS2.

E-64c or E-64d also inhibited (lanes 3-8), demonstrating their effect on calpain. When the platelets were incubated with these inhibitors for I0 min and were then washed to remove extracellular inhibitor before lysis, neither E-64c nor leupeptin inhibited proteolysis, but E-64d did inhibit. E-64d was able to penetrate the platelet and was thus not removed by washing.E-64c failed to inhibit proteolysis in intact platelets, but E-64d, the permeant inhibitor, did inhibit intracellular proteolysis.E-64c and E-64d were each able to inhibit the protease activity in lysed platelets. This protease activity has been attributed to calpain by its absolute dependence on Ca 2+and by inhibition by known inhibitors of calpain. E-64d is able to enter the intact platelet: i) after washing to remove extracellular inhibitor, there was no protease activity detected after platelet lysis, and ii) activation of platelets preincubated with E-64d, but not E-64c, resulted in inhibition of proteolysis by calpain activated in intact platelets by A23187 plus calcium.

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1. 本產品僅供科研使用。請勿用于醫藥、臨床診斷或治療，食品及化妝品等用途。請勿存放于普通住宅區。

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原創作者：上海莼試生物技術有限公司

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E 64d

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