The solubility of this product in DMSO has not been tested. A 200 mM stock solution can be prepared using ethanol, methanol, and 2-propanol. It is known to have 100 mM solubility in DMSO. The product is insoluble in aqueous solutions. Stock solutions of PMSF in 100% isopropanol are stable for at least 9 months at 15 to 25 °C. Storing in a desiccator may be useful.
价格与库存信息目前不能提供
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产品名称
苯甲磺酰氟, ≥98.5% (GC)
生物来源
synthetic
质量水平
方案
≥98.5% (GC)
表单
powder
mp
91-94 °C
溶解性
dry solvents (ethanol, methanol, and 2-propanol): 200 mM (Stock solution are stable for months at 4°C.)
H2O: unstable
SMILES字符串
FS(=O)(=O)Cc1ccccc1
InChI
1S/C7H7FO2S/c8-11(9,10)6-7-4-2-1-3-5-7/h1-5H,6H2
InChI key
YBYRMVIVWMBXKQ-UHFFFAOYSA-N
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一般描述
苯甲基磺酰氟(PMSF)是一种广泛使用的丝氨酸蛋白酶抑制剂，可有效抑制胰凝乳蛋白酶、凝血酶和胰蛋白酶等酶。 PMSF通过磺化丝氨酸蛋白酶反应位点的丝氨酸残基中的羟基残基，发挥抑制作用。
应用
PMSF常用在裂解缓冲液中，通过抑制蛋白酶、避免其在细胞或组织裂解后降解，从而在蛋白分离和样品制备过程中保留目标蛋白。 PMSF在水溶性培养基中不稳定。 因此，在水溶性培养基中使用前，通常采用无水有机溶剂（例如100％乙醇或无水异丙醇）制备PMSF储备溶液。
PMSF的常见特性和优点包括：
PMSF的常见特性和优点包括：
- 抑制丝氨酸蛋白酶，如胰蛋白酶和胰凝乳蛋白酶
- 同时还可抑制半胱氨酸蛋白酶（通过还原硫醇可逆）和哺乳动物的乙酰胆碱酯酶
- 有效性和毒性均不及DFP
- 有效浓度0.1-1 mM。
- pH 7.5时半衰期 = 1小时。
生化/生理作用
PMSF的摄入将产生与其抗胆碱酯酶作用无关的镇痛作用，并延长中枢给药的β-内啡肽的镇痛作用。[5]
相关产品
警示用语：
Danger
危险声明
危险分类
Acute Tox. 3 Oral - Skin Corr. 1B
储存分类代码
6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
WGK
WGK 3
闪点(°F)
Not applicable
闪点(°C)
Not applicable
个人防护装备
Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
其他客户在看
C Pinsky et al.
Life sciences, 31(12-13), 1193-1196 (1982-09-20)
Intraperitoneal (IP) injection of the serine proteinase inhibitor phenylmethylsulfonyl fluoride (PMSF) produced dose-dependent analgesia in Sprague-Dawley rats. AD50 was 2.9 +/- 1.4 (S.E.) mg kg-1, the analgesia was antagonized by naloxone but unaffected by atropine. PMSF significantly enhanced the analgesic
Estrogen receptors activate atrial natriuretic peptide in the rat heart.
Jankowski M, et al.
Proceedings of the National Academy of Sciences of the USA, 98(20), 11765-11770 (2001)
Salivary esterase activity and its association with the biodegradation of dental composites.
Finer Y and Santerre JP.
Journal of Dental Research, 83(1), 22-26 (2004)
Lise Boussemart et al.
Nature, 513(7516), 105-109 (2014-08-01)
In BRAF(V600)-mutant tumours, most mechanisms of resistance to drugs that target the BRAF and/or MEK kinases rely on reactivation of the RAS-RAF-MEK-ERK mitogen-activated protein kinase (MAPK) signal transduction pathway, on activation of the alternative, PI(3)K-AKT-mTOR, pathway (which is ERK independent)
Rui Chen et al.
The Journal of biological chemistry, 287(36), 30800-30811 (2012-07-19)
Hypoxia-inducible factors (HIFs) are oxygen-sensitive transcription factors. HIF-1α plays a prominent role in hypoxic gene induction. HIF-2α target genes are more restricted but include erythropoietin (Epo), one of the most highly hypoxia-inducible genes in mammals. We previously reported that HIF-2α
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实验方案
Thrombin is an endolytic serine protease that selectively cleaves the Arg–Gly bonds of fibrinogen to form fibrin and release fibrinopeptides A and B.
凝血酶是一种内溶性丝氨酸蛋白酶，可选择性裂解纤维蛋白原的精氨酸-甘氨酸键，从而形成纤维蛋白并释放纤维蛋白肽A和B。
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Can this PMSF powder be dissolved in DMSO, and if yes, then to what concentration where and how to store the reconstituted vial?
1 answer-
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At what temperature should the stock Product P7626, Phenylmethanesulfonyl fluoride (PMSF), be stored?
1 answer-
A 200 mM PMSF solution in dry solvent has been reported to remain active for at least 9 months at
2-8 °C. 100 mM PMSF solutions in isopropanol may be stored at –20 °C for several months. For more information please view the Product Data Sheet: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/product/documents/348/427/p7626pis-ms.pdfHelpful?
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What is the effective amount of Product P7626, Phenylmethanesulfonyl fluoride (PMSF), to be used?
1 answer-
The effective concentration range is 0.1-1 mM. A final concentration of 5 mM was used for proteinase K inhibition.
Helpful?
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How should Product P7626, Phenylmethanesulfonyl fluoride (PMSF), solutions be prepared?
1 answer-
Stock solutions of 100-200 mM can be prepared in anhydrous isopropanol or anhydrous absolute ethanol. PMSF is unstable in the presence of water.
Helpful?
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What does Product P7626, Phenylmethanesulfonyl fluoride (PMSF), inhibit?
1 answer-
PMSF is a serine protease inhibitor, inhibiting the activity of enzymes such as thrombin, trypsin, papain, chymotrypsin and proteinase K. It also inhibits mammalian acetylcholinesterases.
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What is the Department of Transportation shipping information for this product?
1 answer-
Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
Helpful?
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How should stock solutions of Product P7626, Phenylmethanesulfonyl fluoride (PMSF), be stored?
1 answer-
A 200 mM solution in dry solvent is stable for at least 9 months when stored at 2-8°C.
Helpful?
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