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描述 概述 Native coagulation factor α-XIIa from human plasma prepared from homogeneous Factor XII using dextran sulfate. Dextran sulfate is removed after activation. α-XIIa is a serine protease responsible for activation of Factor XI to Factor XIa. Factor XIIa and prekallikrein are thought to be involved in a reciprocal activation mechanism whereby Factor XIIa activates prekallikrein to kallikrein, which in turn converts Factor XII to Factor XIIa. 产品目录编号 233493 品牌系列 Calbiochem®
产品信息 形式 Liquid 配方 In 150 mM NaCl, 4 mM sodium acetate buffer, pH 5.3. Molar Mass 80000 生物信息 纯度 homogeneous by SDS-PAGE 来源 Prepared from plasma that has been shown by certified tests to be negative for HBsAg and for antibodies to HIV and HCV. 特异活性 50 units/mg protein (clotting assay). Clotting activity is determined by comparison to a standard curve produced using normal pooled human plasma 浓缩标签 Please refer to vial label for lot-specific concentration
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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