RECOMBINANT IGG-BINDING G-PROTEIN OF STREPTOCOCCUS Russian patent published in 1996 - IPC

FIELD: genetic engineering, medicine. SUBSTANCE: immunoglobulin G binding the protein G is prepared by cloning gene G-protein from streptococcus G148 in E. coli. Protein is isolated from E. coli cells and purified by affinitive chromatography followed by separation of homogeneous protein. Protein shows high yield and binding constants and can be used in immunology, immunochemistry and medicinal diagnosis. EFFECT: increased yield, homogeneity and high affinity of G-protein. 8 dwg, 2 tbl