General description

Cytokeratin 20 is a 46-kDa intermediate filament protein that reacts primarily with gastricand intestinal epithelium, urothelium, and Merkel cells. Anti-Cytokeratin 20 is usefulin the identification of specific types of these epithelial cells under normal, hyperplastic,and neoplastic conditions. Cytokeratin 20 has been detected in various adenocarcinomas,including those of the colon and stomach. Merkel cell carcinomas have shown reactivity. Incontrast, carcinomas of the breast are generally non-reactive.

Legal Information

Cell Marque is a trademark of Sigma-Aldrich Co. LLC

Linkage

Cytokeratin 20 Positive Control Slides , Product No. 320S, are available for immunohistochemistry (formalin-fixed, paraffin-embedded sections).

Other Notes

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Physical form

Solution in Tris Buffer, pH 7.3-7.7, with 1% BSA and ﹤0.1% Sodium Azide

Preparation Note

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Quality