Coagulation Factor XIa, Human Plasma Native coagulation factor XIa from human plasma prepared from homogeneous Factor XI by activation with human Factor XIIa. Factor XIIa is removed after activation. In vivo, Factor XI is activated to Factor XIa via Factor XIIa and High Molecular Weight Kininogen (Cat. No. 422686). Factor XIa activates Factor IX to Factor IXa in a reaction that does not require membrane surfaces. 产品信息 Form Liquid Formulation In 150 mM NaCl, 4 mM sodium acetate buffer, pH 5.3. Molar mass 160000 Avoid freeze/thaw 是的 Purity homogeneous by SDS-PAGE Source Prepared from plasma that has been shown by certified tests to be negative for HBsAg and for antibodies to HIV and HCV. 商店和运输信息 Storage ≤ -70°C Ship Dry Ice Only Standard Handling