Search Thermo Fisher Scientific
Search Thermo Fisher Scientific
Ks 19.2 represents an excellent marker to discriminate glandular epithelial carcinoma from those of different origin. No reaction with hepatocellular carcinoma! Polypeptide Reacting: MW 40 000 polypeptide (keratin K19; formerly also designated cytokeratin 19) of human glandular epithelia. The epitope has been localized on aa. 352-368 (VRADSERQNQEYQRLMD) of the alpha -helical fragment.Tumors specifically detected: All tested adenocarcinoma; cholangio carcinoma of liver; renal cell carcinoma; transitional cell carcinoma of the bladder; ovary carcinoma; squamous cell carcinoma of cervix, bronchus and lung (intermediate type); mesothelioma; carcinoid tumor of bronchus; breast carcinoma; thymoma. Reactivity on cultured cell lines: MCF-7. This antibody was used in a Sandwich ELISA, and pairs with products 61010PROGEN, 690010PROGEN, and 690010S.
Cytokeratin 19 is part of a subfamily of intermediate filament proteins and are characterized by a remarkable biochemical diversity, represented in human epithelial tissues by at least 20 different polypeptides. Cytokeratins range in molecular weight from 40-68 kDa and isoelectric pH between 4.9 - 7.8. The individual human cytokeratins are numbered 1 to 20. The various epithelia in the human body usually express cytokeratins which are not only characteristic of the type of epithelium, but also related to the degree of maturation or differentiation within an epithelium. Cytokeratin subtype expression patterns are used to an increasing extent in the distinction of different types of epithelial malignancies. The cytokeratin antibodies are not only of assistance in the differential diagnosis of tumors using immunohistochemistry on tissue sections, but are also a useful tool in cytopathology and flow cytometric assays. For example, cytokeratin 19 is not expressed in hepatocytes, therefore, it is useful in the identification of liver metastasis.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Protein Aliases: 40-kDa keratin intermediate filament; C K1CS; CK 19; CK-19; cytokeratin 19; Cytokeratin-19; K19; keratin 19; keratin 19, type I; Keratin, type I cytoskeletal 19; keratin, type I, 40-kd; Keratin-19; MGC15366; Type I keratin Ka19
Gene Aliases: CK19; K19; K1CS; Ka19; Krt1-19; KRT19
UniProt ID: (Human) P08727, (Bovine) P08728, (Rat) Q63279
Entrez Gene ID: (Human) 3880, (Bovine) 514812, (Rat) 360626, (Rabbit) 100344434
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