Technical Data
CA19-9 Cancer Antigen (Pancreatic, GI or Ovarian Tumor Antigen, Sialyl Lewis a)
Molecular Biology Storage: -20CShipping: Blue Ice
CA19-9 (Sialyl Lewis a) is a carbohydrate antigenic determinant identified as a sialylated lacto-N-fucopentose II, an oligosaccharide biochemically related to the Lewis a blood group antigen. In malignant tissues positive staining of tumor cells is observed in most adenocarcinomas of the pancreas and stomach, and in a large proportion of colon and gall bladder tumors. The antigen is also expressed in approximately half of primary and metastatic ovarian tumors. In normal tissues, positive staining is also observed in column or epithelium of the pancreas stomach, liver, gall bladder and in bronchial glands of the lung.
Source: Human pancreatic tumor fluids
Purity: Contaminants: 5% CA153, 5% CA125
Concentration: ~40-50Ku/ml
Form: Supplied as a sterile-filtered liquid in 50mM TRIS, pH 7.4, 140mM sodium chloride, 15mM sodium azide.
Specificity: Reactive to Centocor 19-9 kit tracer.

Important Note: This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.
Intended for research use only. Not for use in human, therapeutic, or diagnostic applications.