Clone Number: EP1601Y
Immunogen: Unknown or proprietery to MONOSAN and/or its suppliers
Concentration: n/a
Storage buffer: Tris Buffer, pH 7.3-7.7, containing 1% BSA and <0.1% Sodium Azide
Additional info: Cytokeratin 5 is an intermediate filament protein of 58 kD molecular weight within the cytokeratin family. It is a type II (basic) cytokeratin. Antibodies to this protein identify basal cells of squamous and glandular epithelia, myoepithelia, and mesothelium. Anti-cytokeratin 5 has been reported useful in the differential diagnosis of metastatic carcinoma in the pleura versus epithelioid mesothelioma. Epithelioid mesotheliomas are strongly positive in almost all cases, but a minority of pulmonary adenocarcinomas will show focal immunoreactivity. Almost all squamous cell carcinomas, half of transitional carcinomas, and many undifferentiated large cell carcinomas immunostain with anti-CK 5. Anti-CK 5, along with antip63, affords a high sensitivity and specificity for squamous differentiation. Myoepithelial cells of the breast, glandular epithelia, and basal cells of the prostate are labeled with anti-CK. This antibody, along with anti-CK 14, has found application in identifying basal-like breast carcinoma.
References: Ordonez NG. Human Pathology. 2007; 38:1–16/Kargi A, et al. Appl Immunohistochem Mol Morphol.; 15:415–420 (2007)/Clarke CL, et al. J Pathol.; 204:147-52 (2004)
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