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http://dx.doi.org/10.5352/JLS.2009.19.5.561

An Efficient Method for Production of Extracellular Human Tissue Factor in Escherichia coli  

Yoo, Hwan-Goo (Department of Chemistry)
Park, Yang-Jin (Department of Chemistry)
Lee, Woo-Yiel (Department of Pharmaceutical Engineering, Konyang University)
Publication Information
Journal of Life Science / v.19, no.5, 2009 , pp. 561-565 More about this Journal
Abstract
Human Tissue factor is an essential enzyme activator that forms a catalytic complex with factor VII/ VIIa, and catalyzes both the extrinsic and intrinsic blood coagulation cascades. The extracellular domain of human tissue factor is responsible for association with the biological partner. The efficient procedures for preparing biologically active human tissue factor are essential for the preclinical and clinical studies with coaguligands. An expression vector in Escherichia coli has been constructed to direct the production of extracellular human tissue factor without a fusion protein or a $His_6$ at the N-terminus. The recombinant human tissue factor was expressed in large amounts as a non-native state in E. coli. The recombinant protein was simply renatured during the DEAE-sephacel chromatographic purification procedure. Our expression and purification system does not require a protease treatment or an additional chromatographic step to remove a fusion contaminant, which provides a very useful alternative to conventional expression systems for the production of human tissue factor.
Keywords
Extracellular domain; expression system; human tissue factor; purification; refolding;
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