Enzyme Research 是一家擁有超過25年的酶研究的實驗室，生產和開發多種用于基本凝血研究的多種酶和輔因子。在過去的十年Enzyme Research Laboratories為科學家參與止血和血栓形成的研究提供了寶貴支持。Enzyme Research通過不斷追求產品的zui高品質，贏得了世界各地凝血研究實驗室的信任。

Human Factor VIIa

HFVIIa             Human Factor VIIa

Prepared from purified Human Factor VII using Human Factor XIIa. The Factor Xlla is removed using affinity chromatography. Purity is determined by SDS-PAGE. Human Factor VIIa reduces to 29,500 and 23,500 with the addition of 2-mercaptoethanol. Activity is determined via clotting assay.  Factor Vlla, in the presence of calcium ions and Tissue factor, activates Factors IX and X to their enzymatically active forms, Factor IXa and Xa.

Buffer composition = 20 mM Tris-HCl/0.1 M NaCl/pH 7.4
*Extinction Coefficient （1%） = 13.9
Molecular Weight = 50,000 daltons

Also available: des-Gla-Human Factor VIIa and 
Factor VIIa inactivated

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