Native Human MCF-7 Cell Cyfra-21-1 Antigen

• Cat.No.: Cyfra-21-1-01H
• Product Overview: Native Human Cyfra-21-1 Antigen extracted from human MCF-7 Cell Supernatant.
  Purification: Ion-Exchange Chromatography. Product is 0.2 μm filtered.
  Contaminants: Elecsys CA125 Assay = 613.9 Units/mL (0.93%), Elecsys CA15-3 Assay = 12.00 Units/mL (0.02%), Elecsys CA19-9 Assay = 12.87 Units/mL (0.02%)

Specification

• Species: Human
• Source: MCF7
• Description: CYFRA 21-1 is a test measuring a cytokeratin-19 fragment that is soluble in human serum and may be a useful circulating tumor marker. The test was developed as sandwich ELISA based on two monoclonal antibodies, both reacting with keratin 19. The epitopes recognised by the antibodies are located on the rod region of the molecule.
• Form: Calibrator Grade, Liquid
• Applications: Suitable for use in Chemiluminescent Immunoassay. Each laboratory should determine an optimum working titer for use in its particular application. Other applications have not been tested butuse in such assays should not necessarily be excluded.
• Storage: Short-term store at 2-8 centigrade. Long term store at -20 centigrade. Avoid multiple/freeze thaw cycles.
• Storage Buffer: Phosphate-Buffered Saline, pH 7.4 ± 0.1

Gene Information

• Synonyms: Cyfra-21-1 Antigen; Cyfra-21-1; Cytokeratin 19 Fragment