Recombinant Human Coagulation Factor III/Tissue Factor, CF

Coagulation Factor III/Tissue Factor (TF), also known as thromboplastin and CD142, is an integral membrane protein found in a variety of cell types. It functions as a protein cofactor/receptor of Coagulation Factor VII, which is synthesized in the liver and circulated in the plasma (1). Upon binding of TF, the inactive factor VII is rapidly converted into activated VIIa. The resulting 1:1 complex of VIIa and TF initiates the coagulation pathway and has also important coagulation‑independent functions such as angiognesis (2). Synthesized as a 295 amino acid precursor, TF consists of a signal peptide (residues 1 to 32) and the mature chain (residues 33 to 295). As a type I membrane protein, it contains a transmembrane region (residues 252 to 274) and a cytoplasmic tail (residues 275 to 295) (3-6). The purified rhTF corresponds to the ectodomain (residues 34 to 251) and is potent in activating thermolysin-processed Recombinant Human Coagulation Factor VII (Catalog # http://www.rndsystems.com/product_results.aspx?k=2338-SE">2338‑SE) under the conditions described in Activity Assay Protocol.