Cytokeratin 17 (KRT17) Mouse Monoclonal Antibody [Clone ID: SPM560]

Specifications

Product Data
Clone Name	SPM560
Applications	FC, IF, IHC, WB
Recommend Dilution	Flow Cytometry: 0.5-1 μg/106 cells. Immunofluorescence: 1-2 μg/ml. Western Blotting: 0.5-1 μg/ml. Immunohistochemistry on Formalin-Fixed Paraffin Sections: 0.5-1.0 μg/ml for 30 minutes at RT. Staining of formalin-fixed tissues requires boiling tissue sections in 10mM Citrate Buffer, pH 6.0, for 10-20 min followed by cooling at RT for 20 minutes. Positive Control: Skin.
Reactivity	Bovine, Goat, Human, Porcine, Rat
Host	Mouse
Clonality	Monoclonal
Immunogen	The cytoskeletal fraction of Rat colon epithelium.
Specificity	Cytokeratin 17 (CK17) is a member of the Cytokeratin subfamily of intermediate filament proteins (IFP’s). It is unique in that it is normally expressed in the basal cells of complex epithelia but not in stratified or simple epithelia. CK17 is expressed in the nail bed, hair follicle, sebaceous glands and other epidermal appendages. Antibody to CK17 is an excellent tool to distinguish myoepithelial cells from luminal epithelium of various glands such as mammary, sweat and salivary. CK17 is expressed in epithelial cells of various origins, such as bronchial epithelial cells and skin appendages. It may be considered as “epithelial stem cell” marker because CK17 Ab marks basal cell differentiation. CK17 can be useful when included in a panel of antibodies against TTF-1, napsin A, CK5&6, p63, and SOX-2 for diagnostic differentiation between lung adenocarcinoma (LADC) and lung squamous cell carcinoma (SCLC), especially for poorly-differentiated lung carcinoma. CK17 is expressed in SCLC much higher than in LADC. In breast carcinomas, approximately 20% of patients show no expression of ER, PR and Her2, which are defined as triple negative tumor. Eighty-five percent of the triple negative breast carcinomas immunoreact with basal cytokeratins including anti-CK17. Also important is that cases of triple negative breast carcinoma with expression of CK17 show an aggressive clinical course. The histologic differentiation of ampullary cancer, intestinal vs. pancreatobiliary, is very important for treatment. Usually anti-CK17 and anti-MUC1 immunoreactivity represents pancreatobiliary subtype whereas anti-MUC2 and anti-CDX-2 positivity defines intestinal subtype. Cellular Localization: Cytoplasmic.
Formulation	10mM PBS State: Purified State: Liquid purified IgG fraction from Bioreactor Concentrate Stabilizer: 0.05% BSA Preservative: 0.05% Sodium Azide
Concentration	lot specific
Purification	Protein A/G Chromatography
Conjugation	Unconjugated
Storage Condition	Store undiluted at 2-8°C.
Predicted Protein Size	46 kDa
Gene Name	keratin 17
Database Link	Entrez Gene 3872 Human UniProt ID Q04695
Synonyms	Cytokeratin-17, Keratin-17, Keratin 17, KRT17, CK17, K17
Reference Data

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