AIM: To explore the clinical significance of the polymorphism of coagulation factor XⅢ A subunit gene (Val 34/Leu), and FXⅢ antigen and activity in plasma of patients with myocardial infarction or brain infarction.

The antigenic activity of expressed protein was identified by Western blot and antibody blocking reaction.

Cloning and expression of protein fiber1 gene of chicken embryo lethal orphan virus and identification of expressed protein antigenicity;

Cloning and expression of antigenic region of glycoprotein gC gene from infectious bovine rhinotrachetis virus;