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You are here:Home » Molecular Biology » MB-Cancer Markers » CA19-9 Cancer Antigen, Human (Pancreatic, GI or Ovarian Tumor Antigen, Sialyl Lewis a)

CA19-9 Cancer Antigen, Human (Pancreatic, GI or Ovarian Tumor Antigen, Sialyl Lewis a)

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Specifications

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.
Catalog #C0075-26A
Source
Human metastatic liver carcinoma
Activity~330KU/ml (Roche Elecsys)
ApplicationsSuitable for use as Immunogen, calibrator in immunoassays and in vitro studies. Other applications not tested.
Recommended DilutionsOptimal dilutions to be determined by the researcher.
Storage and StabilityMay be stored at 4°C for short-term only. For long-term storage, aliquot and store at -20°C. Aliquots are stable for at least 6 months at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
SourceHuman metastatic liver carcinoma
PurityPurified by gel filtration and column chromatography.
Concentration~330KU/ml
FormSupplied as a liquid in PBS, pH 7.4, 3% sucrose, 0.05% sodium azide.
Important NoteThis 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.


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