计算溶液所需的质量、体积或浓度。
,适用于对基线干扰要求严格的色谱和分析工作流程。
-80℃储存。特低温运输 。请查阅批次 COA 获取详细规格。
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在色谱分析、有机合成和交叉偶联反应领域已被 89 篇同行评审文献引用。
可抑制丝氨酸蛋白酶例如胰蛋白酶(trypsin)和胰凝乳蛋白酶(chymotrypsin),也可抑制半胱氨酸蛋白酶和乙酰胆碱酯酶。有效浓度为0.1-1mM。抑制丝氨酸蛋白酶,如胰蛋白酶和胰凝乳蛋白酶。 还可抑制半胱氨酸蛋白酶(可通过还原的硫醇可逆)和哺乳动物乙酰胆碱酯酶。 不如DFP有效或具有毒性。 有效浓度0.1-1 mM。 pH 7.5时半衰期 = 1小时。 苯基甲磺酰氟已用于以下应用: · 细胞分级分离。 · 在核蛋白提取中作为补充剂。 · 胆固醇酯酶(CE)和假胆碱酯酶(PCE)抑制剂。 · 在离心之前用于血液的收集以量化血浆ANP的水平。
Information
PMSF PMSF (Phenylmethylsulfonyl Fluoride, Benzylsulfonyl fluoride) is an irreversible serine/cysteine protease inhibitor.
In vitro
Although human trypsin is less susceptible to inhibition by PMSF, PMSF rapidly inactivates purified chymotrypsin from human pancreas. PMSF also rapidly inhibits acetylcholinesterase from human red cells. As an inhibitor of phosphatidylinositol-specific phospholipase C, PMSF treatment at 2 mM almost completely inhibits carbachol-stimulated inositol incorporation into phosphatidylinositol (PI) of longitudinal smooth muscle of guinea pig ileum, while it has no effect on potassium-stimulated inositol incorporation. In contrast to its specific inhibition of carbachol-stimulated phosphoinositide turnover, PMSF produces a transient inhibition of contraction by both carbachol and potassium. PMSF has been shown to inhibit the addition of ethanolamine phosphate to glycosylphosphatidylinositol (GPI) intermediates in Trypanosoma brucei. PMSF also inhibits the acylation of the inositol residue of GPI intermediates in bloodstream form T. brucei. PMSF inhibits ethanolamine phosphate addition and inositol acylation for procyclic forms of T. brucei but not for mammalian HeLa cells. PMSF is the more reactive inactivator of mouse acetylcholinesterase (AChE), as the 8-fold higher BSF concentration is necessary to achieve even a 6-fold slower inactivation than that using PMSF.
In vivo
Intraperitoneal injection of PMSF produces dose-dependent analgesia in Sprague-Dawley rats. PMSF significantly enhances the analgesic effect of beta-endorphin (END) in rats. Mice receiving i.p. injections of PMSF exhibit cannabinoid effects that include antinociception, hypothermia and immobility with ED50 of 86 mg/kg, 224 mg/kg and 206 mg/kg, respectively. Pretreatment with an inactive dose of PMSF (30 mg/kg) enhances the effects of anandamide on tail-flick response (antinociception), spontaneous activity and mobility by 5-, 10- and 8-fold, respectively. Administration of PMSF 12 hours prior to PSP causes complete protection in organophosphorus ester-induced delayed neuropathy (OPIDN) in hens, but PMSF administered 4 hours after PSP potentiates its neurotoxic effects. Pretreatment with PMSF (30 mg/kg, i.p.) prior to an injection of 1 or 10 mg/kg 3H-anandamide results 5 minutes later in enhanced brain levels of anandamide compared to those obtained with 3H-anandamide plus vehicle injection. Pretreatment with PMSF inhibits tri-ortho-cresyl phosphate (TOCP)-induced neurofilament (NF) degradation, and protects hens against the development of organophosphate-induced delayed neuropathy (OPIDN). Administration of PMSF enhances the characteristic cannabimimetic effects of Δ(9)-tetrahydrocannabinol (THC) or anandamide (AEA) in ICR mice, by inhibiting the enzyme fatty acid amide hydrolase.
Cell Data
cell lines:
Concentrations:
Incubation Time:
Powder Purity:≥98%
H301: 吞咽会中毒
H314: 造成严重的皮肤灼伤和眼睛损伤
P260: 不要吸入灰尘/烟雾/气体/雾/蒸汽/喷雾。
P264: 处理后要彻底洗手。
P270: 使用本产品时,请勿进食、饮水或吸烟。
P280: 戴防护手套/穿防护服/戴防护眼罩/戴防护面具。
P310: 立即致电解毒中心或医生。
P330: 漱口
P363: 再次使用之前,请清洗受污染的衣物。
P301+P310: 如误吞咽:立即呼叫急救中心/医生。
P301+P330+P331: 如误吞咽:漱口。不要诱导呕吐。
P303+P361+P353: 如皮肤(或头发)沾染:立即脱掉所有沾染的衣服。用水清洗皮肤/淋浴。
P304+P340: 如误吸入:将人转移到空气新鲜处,保持呼吸舒适体位。
P305+P351+P338: 如进入眼睛:用水小心冲洗几分钟。如戴隐形眼镜并可方便地取出,取出隐形眼镜。继续冲洗。
P405: 密闭存放
P501: 将内容物/容器处理到。。。
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| 批号(Lot Number) | 证书类型 | 货号 |
|---|---|---|
| 分析证书 | P408676 |