Recombinant streptavidin-protein chimeras useful for conjugation of molecules in the immune system

摘要

A novel recombinant streptavidin-protein A chimeric protein which allows conjugation of antibody molecules with biological materials. The chimeric protein is efficiently expressed in Escherichia coli and is purified by simple procedures. The purified chimetic protein can bind one biotin molecule and one to two immunoglobulin molecules per subunit.