PLAT, as known as tissue-type plasminogen activator isoform 1, is a secreted serine protease synthesized by endothelial cells. This protein is secreted as a single chain polypeptide precursor which is cleaved in turn by plasmin. Also, it plays a role clinical medicine to treat stroke in cell migration and tissue remodeling. It is implicated in normal neural function and is suggested as a regulatory molecule in neurodegenerative diseases. Recombinant human PLAT, fused to His-tag at C-terminus, was expressed in insect cell and purified by using conventional chromatography techniques.