earticle

영어

Many thousands of recombinant proteins have been successfully produced in baculovirus - infected insect cells and larvae. In this study, to improve its value and the yield of recombinant protein production, we constructed transgenic silkworm using Heat shock genes with regard to
protein folding. This time, we adapted GAL4/UAS system to express at necessary time point and to carry genes for foreign protein. First, we generated two transgenic cells and silkworm lines that carried the silkworm heat shock proteins, UAS-HOP and UAS-HSC70 and UASHSP70 and UAS-HSP40 construct plus 3xP3-DsRED. Subsequently, to drive the GAL4 gene as activator vector, we engineered Baculoviruses that contain the GAL4 under the P10 promoter linked to the expression cassette of interest foreign genes under the polyhedron promoter. Also, activator vector linked to the GAL4 was designed expressing 6xHis and 6xHis-GST tag. Infection of silkworm larvae with recombinant virus, His-tagged human C3d gene was more efficiently produced transgenic silkworm than that of wild-type, but not His-GST tagged. We show the
possibility in use of HSPs transgenic silkworm system by GAL4/UAS BmNPV that can generate the efficient production of foreign protein.