Prekallikrein, Human Plasma Fletcher Factor Native prekallikrein from human plasma. Single-chain glycoprotein that participates in the early phase of blood coagulation, kinin formation, and fibrinolysis. 产品信息 Form Liquid Formulation In 150 mM NaCl, 4 mM NaOAc-HCl, pH 5.3. Molar mass 86000 Avoid freeze/thaw 是的 Specific activity 22-28 units/mg (clotting assay) Purity ≥95% 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