Gastrointestinal tumor antigen is a large glycoprotein defined by a carbohydrate epitope, Ca19-9, located on a protein core mucin. It is referred to in the literature as sialylated Lewis A (Lea). It is over expressed by epithelial tumors of the gastro intestine including the stomach, small and large intestine, colon, pancreas and cervix. These mucins are largely carbohydrate, 80-90%.
Source:CA 19-9, from human adenocarcinoma cell line.
Contaminants:As demonstrated by RIA, less than 1% contamination with CA 125 and CA 15-3
Applications:Suitable for use for making standards, calibrators, and single analyte controls. Other applications not tested.
Recommended Dilution:Optimal dilutions to be determined by the researcher.
Storage and Stability:May 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 after receipt 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.
仕様
Size：25KU
Source Antigen：Human adenocarcinoma cell line
Grade：Cell Culture Grade
Purity：Cell culture concentrate
Form：Supplied as a liquid in PBS, pH 7.4, 0.09% sodium azide.
