Exogenous gene expression vector containing chick .beta.-actin gene promoter

Abstract From the Canadian patent

The present invention is directed to an expression vector for the expression of an exogenous gene in an animal cell, which contains a chick .beta.-actin gene promoter and a restriction enzyme site to incorporate an exogenous gene downstream of said promoter and a process for expressing an exogenous gene, which comprises incorporating said exogenous gene into the expression vector at the restriction enzyme site to incorporate the exogenous gene, introducing said vector into an animal cell and culturing the obtained transformed animal cell. The expression system of the present invention can be applied to an expression of any exogenous gene and has an extremely high expression of efficiency …