Keratins is a family of about 20 proteins that form intermediate filament in epithelial cells. Obligate heteropolymers of a type I and a type II subunit, they contribute to the structure and strength of the cytoskeleton. Mutations in keratin genes cause keratinopathies, inherited diseases of the skin and its appendages. Keratins include more than 20 unique gene products (termed K1-K20) that are divided into type I (K9-K20) and type II (K1-K8). Most epithelial cells express at least one type I and one type II keratin as their predominant intermediate filament protein complement in an epithelial cell-specific manner. Cytokeratin 15 belongs to the acidic or type I keratin family and assembles into a keratin filament network paired with K5, its basic, type II keratin expression partner. It is expressed in a discontinuous manner in the basal cell layer of adult skin epidermis, but continuously in the basal layer of fetal skin epidermis and nail Human K15 is encoded on chromosome 17q21.2.
Applications:
Suitable for use in Immunohistochemistry. Other applications not tested.
Recommended Dilution:
Immunohistochemistry (formalin fixed paraffin embedded): 1:25-1:75
Optimal dilutions to be determined by the researcher.
Positive Control:
Skin
Storage and Stability:
May be stored at 4 degrees C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20 degrees C. Aliquots are stable for at least 12 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
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