Roche 10165921001 Pronase蛋白酶E
公司简介
罗氏总部位于瑞士巴塞尔，在制药和诊断领域是世界领先的以研发为基础，以创新为驱动的健康医疗公司之一。作为全球**的生物技术公司之一，罗氏在抗肿瘤、抗病毒、炎症、代谢和中枢神经系统领域拥有切实有效的差异化药品；同时罗氏也是体外诊断和基于组织的肿瘤诊断的市场***，以及糖尿病管理领域的先驱者。罗氏倡导的“个性化医疗”方案旨在提供创新的药品和诊断工具，从而切实改善人类的健康水准、生活质量以及患者的生存期。
在成功收购德国宝灵曼公司（Boehringer Mannheim GmbH.）后，成立了专业服务于科学研究领域用户的罗氏诊断生命科学部（Roche Life Science），凭借半个多世纪在生命科学研究领域积累的经验，罗氏诊断生命科学部已成为在此领域中具重要地位的试剂及系统供应商之一。罗氏诊断生命科学部还为生命科学行业、生物制药行业和诊断行业提供所需的原料、试剂组分和试剂盒，罗氏诊断生命科学部为客户进行量身定制产品，满足客户个性化需求。
产品介绍
General description
Pronase is a mixture of several nonspecific endo- and exoproteases that digest proteins down to single amino acids.
Other Notes
仅用于生命科学研究。不可用于诊断。
Preparation Note
Stabilizers: Protective effect of calcium ions
Calcium is highly effective in preventing pronase activity. The activity of a diluted solution containing 0.01–0.1 M calcium was stable over 24 hours at neutral pH at 4 to 8 °C. Pronase is also protected from heat inactivation by low levels of calcium.
Working concentration: 0.5 to 2 mg/ml
Working solution: Solvent is recommended in distilled water.
Stock solution is prepared by adding pronase powder to distilled water (10 to 20 mg/ml).
Storage conditions (working solution): -15 to -25 °C
Reconstitution
The lyophilizate is soluble in water (10 to 20 mg/ml).
Specificity
Pronase has a broad specificity, breaking down virtually all proteins into their individual amino acids; resolves carboxylic acids and alcohols.
Unit Definition
A unit of non-specific protease activity increases the rate of release of folin-positive amino acids and peptides from casein, at +40 °C and pH 7.5. For one unit (U) 1 μmol/min tyrosine is released, and for the unit "PU", the value is 1 μg/minute (1 U = 181 PU); for the unit "PUK", it is 0.1/minute (measured is the change in absorbance of molybdenum blue, formed by reaction with the folin ′s reagent under conditions such that 1 PUK = 50 PU).
Application
Use Pronase to completely hydrolyze proteins in research applications. Pronase is used for the degradation of proteins during the isolation of DNA and RNA, such as in the extraction of phage DNA or the isolation of plasmid DNA. It is not necessary to let pronase self-digest prior to use. It is also used in histochemistry and cell culture for tissue dissociation in conjunction with collagenase and trypsin,[4][2][1] and for the production of glycopeptides from purified glycoproteins. It has been used for the dechorionation of Zebrafish embryos.[3]
性质
sterility:non-sterile
form:lyophilized powder
specific activity activity:~7.0 units/mg protein (at 40°C with casein as the substrate, pH 7.5, equivalent to approximately 1270 PU/mg or approximately 25 PUK/mg.)
packaging:pkg of 1 g (10165921001)
pkg of 5 g (11459643001)
mfr. no.：Roche
limit：35–40 °C optimum reaction temp.
optimum pH：7.0 - 8.0
pH-range：6.0 - 9.0
shipped in：wet ice
storage temp.：2-8°C
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