Fitzgerald Industries International, Inc. CA 19-9 protein 30-AC15

Purified native Human CA 19-9 protein Background: Mucin glucoprotein (CA-19-9) is a sialyl Lewisa structure which is synthesized from type 1 blood group precursor chains and is present in individuals expressing the Lewisa and/or Lewisb blood group antigens. In normal tissues, sialyl Lewisa antigen is present in ductal epithelium of the breast, kidney, salivary gland, and sweat glands. Its expression is greatly enhanced in serum as well as in the majority of tumor cells in gastrointestinal (GI) carcinomas.