Description: This LP5K monoclonal antibody reacts with human cytokeratin 7 (K7), a 54-kDa type II (or basic) keratin expressed either alone or paired with cytokeratin 19 in simple epithelia, mesothelium, urothelium, and pseudostratified epithelium. Expression of cytokeratin 7 in the gastric foveolar, intestinal, and stratified squamous epithelia is extremely low or undetectable. Cytokeratins form the intracellular cytoskeletal network that maintains the integrity and stability of cells and tissues. In addition, most carcinomas express cytokeratin 7. The coordinated expression of this keratin with cytokeratin 20 is commonly used as a diagnostic marker for a variety of carcinomas. Applications Reported: This LP5K antibody has been reported for use in immunoblotting (WB) and immunocytochemistry (ICC). Applications Tested: This LP5K antibody has been tested by immunofluorescent staining of paraformaldehyde fixed and permeabilized cells. This can be used at less than or equal to 10 µg/mL. It is recommended that the antibody be titrated for optimal performance in the assay of interest. Purity: Greater than 90%, as determined by SDS-PAGE. Aggregation: Less than 10%, as determined by HPLC. Filtration: 0.2 µm post-manufacturing filtered.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 maligcies. 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.
|Immunocytochemistry, Immunofluorescence, Western Blot|
|PBS with 0.09% sodium azide; pH 7.2|
For Research Use Only.
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