○ Expression of simple proteins with various kinds of E. coli
〇 Establish a system of recombinant antibody expression in the medium. Antibody is stably expressed by extracting the gene of the hybridoma monoclonal antibody and incorporating it into the chromosome of CHO cells.
○ Expressing a protein with a complex three-dimensional structure in a medium using CHO cells
○ Production of recombinant antibody in the cocoon using transgenic silk worm