PROTEIN L HAVING IMMUNITY GLOBULIN COUPLING ACTIVITY AND SUBFRAGMENT, MANUFACTURE THEREOF, REAGENT KIT, MEDICINE COMPOSITION AND LEPTOCOCCUS MAGNUS SPECIES

摘要

This invention relates to a new protein L and subfragments thereof with binding activity for all classes of immunoglobulins from different species, a process for preparing the same, a reagent kit, a pharmaceutical composition. The process for preparing the protein and subfragments thereof is characterized in that the microorganism P. magnus 312 is treated with proteolytic enzymes or mutanolysin.