Login

Forgot your password?
New User?
Remember me
banner banner

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

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

Pricing

  For pricing information, USA customers sign in.
  Outside USA? Please contact your distributor for pricing.

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 #C0075-14
ContaminantsCA125: 1%
CA72-4: 1%
CA15-3: 1%
Activity~50,000 U/ml (Roche EIA)
ApplicationsSuitable for use as an antigen in immunological protocols.
Storage and StabilityMay be stored at 4°C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Aliquots are stable for 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 ascites fluids
PurityHighly purified. Contaminants
FormSupplied as a liquid in PBS, pH 7.2, 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.


External Links