This antibody detects a 54 kDa band, corresponding to keratin 7, and a 46 kDa band, corresponding to keratin 17 by Western blot. Reacts only with keratin 7 in formalin-fixed paraffin-embedded sections.
Cytokeratins are 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. They range in molecular weight between ~40 kDa and ~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 Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Protein Aliases: 39.1; CK-17; CK-7; cytokeratin 7; Cytokeratin-17; Cytokeratin-7; K17; K7; keratin 17, type I; keratin 7, type II; keratin, 55K type II cytoskeletal; keratin, simple epithelial type I, K7; Keratin, type I cytoskeletal 17; Keratin, type II cytoskeletal 7; Keratin-17; Keratin-7; Sarcolectin; type II mesothelial keratin K7; Type-II keratin Kb7
Gene Aliases: 39.1; CK-17; CK7; K17; K2C7; K7; KRT17; KRT7; PC; PC2; PCHC1; SCL