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描述 概述 Native, human, activated, C1r complement component. Generally the non-activated form composed of a single-chain glycoprotein. Present in normal human serum at 34 µg/ml. Non-activated C1r is found in circulating blood plasma as a dimer that associates with one C1q molecule and two C1s molecules to form the first component of complement (C1). Ensuing C1q binding to classical complement pathway activators, each C1r proenzyme monomer is activated by cleavage into two disulfide-linked fragments of M.W. 60,000 and 35,000. The 35 kDa peptide contains C1r enzymatic active site. Activated C1r continues activation via classical pathway by cleaving, and thus activating C1s. 产品目录编号 204878 品牌系列 Calbiochem®
参考 参考 Villiers, C.L., et al. 1983. Biochem. J. 215, 369.
Ziccardi, R.J. and Cooper, N.R. 1976. J. Immunol. 116, 496.产品信息 CAS号 80295-34-7 形式 Liquid 配方 In 140 mM NaCl, 10 mM imidazole, 2 mM EDTA, pH 7.4. Molar Mass 95000 生物信息 生物活性 ≥90% of C1r will bind with excess C1-INH 纯度 ≥90% by SDS-PAGE 来源 Prepared from serum that has been shown by certified tests to be negative for HBsAg and for antibodies to HIV and HCV. 浓缩标签 Please refer to vial label for lot-specific concentration
理化信息 污染物 IgG, IgA, IgM, albumin, C1s, C4BP, C1-INH: ≤trace amounts 储存和货运信息 货运代码 Dry Ice Only
毒性 Standard Handling
储存 ≤ -70°C
避免冻结 / 解冻 Avoid freeze/thaw
无需冷冻 No
特殊指南 Following initial thaw, aliquot and freeze (-70°C).
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