Enzyme Research通过不断追求产品的zui高品质，赢得了世界各地凝血研究实验室的信任。
Enzyme Research Laboratories为生物技术公司,制药行业、医院和大学的研究实验室提供用于的纯化抗凝因子。除了其制造能力，Enzyme Research Laboratories也创新研发领域中的血液凝固技术。
Single Chain High Molecular Wt. Kininogen
HK 1300 Single Chain High Molecular Wt. Kininogen （Fitzgerald Factor）
High Molecular Weight Kininogen （HK） is a nonenzymatic cofactor of the contact activation system. HK is thought to have two functions in the contact activation system. First, HK links prekallikrein to a negatively charged surface thereby allowing activation to kallikrein by surface bound Factor α-Xlla. HK also forms a complex with Factor XI and accelerates its activation to XIa by α-Xlla. Also HK serves as a source of Bradykinin, a potent Vasoactive peptide important in hypotension studies. The protein purity is determined by SDS-PAGE
Buffer composition = 4 mM Sodium Acetate-HCl/0.15 M NaCl/pH 5.3
*Extinction Coefficient （1%） = 7.01
Molecular Weight = 120,000 daltons