Technical Data

172073-AF
Clone Type
Monoclonal
Host
Mouse
Source
Human
Isotype
IgG3
Clone Number
SPM263
Grade
Affinity Purified
Applications
E FC IF IHC IP WB
Crossreactivity
Hu Mo Rt
Gene ID
3861 (Human); 16664 (Mouse)
Shipping Temp
Blue Ice
Storage Temp
4°C Do Not Freeze
Notes
Preservative Free
BSA Free
Mouse Anti-Cytokeratin 14 (CK-14, Dowling Meara, ebs3, ebs4, Epidermolysis Bullosa Simplex, k14, Keratin 14, Keratin Type I Cytoskeletal 14, Koebner, krt14, NFJ) (BSA & Azide Free)
CK-14, Dowling Meara, ebs3, ebs4, Epidermolysis Bullosa Simplex, k14, Keratin 14, Keratin Type I Cytoskeletal 14, Koebner, krt14, NFJ

Cytokeratin 14 (CK14) belongs to the type I (or A or acidic) subfamily of low molecular weight keratins and exists in combination with keratin 5 (type II or B or basic). CK14 is found in basal cells of squamous epithelia, some glandular epithelia, myoepithelium, and mesothelial cells. Anti-CK14 is useful in differentiating squamous cell carcinomas from poorly differentiated epithelial tumors. Anti-CK14 is one of the specific basal markers for distinguishing between basal and non-basal subtypes of breast carcinomas. Anti-CK14 is also a good marker for differentiation of intraductal from invasive salivary duct carcinoma by the positive staining of basal cells surrounding the in-situ neoplasm as well as for differentiation of benign prostate from prostate carcinoma. Furthermore, this antibody has been useful in separating oncocytic tumors of the kidney from its renal mimics, and in identifying metaplastic carcinomas of the breast.

Applications
Suitable for use in Immunofluorescence, Flow Cytometry, ELISA, Western Blot, Immunoprecipitation, Immunohistochemistry. Other applications not tested.
Recommended Dilution
Flow Cytometry: 0.5-1ug/million cells Immunofluorescence: 1-2ug/ml Immunoprecipitation: 1-2ug/500ug protein Western Blot: 0.5-1.0ug/ml Immunohistochemistry (Frozen & Formalin-fixed): 1-2ug/ml for 30 min 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) Optimal dilution for a specific application should be determined.
Positive Control
A431 cells. Skin or Squamous cell carcinoma
Storage and Stability
May be stored at 4°C. For long-term storage, aliquot and store at 4°C. Do not freeze. Aliquots are stable for 12 months after receipt. For maximum recovery of product, centrifuge the original vial prior to removing the cap. Further dilutions can be made in assay buffer.
Immunogen
A synthetic peptide of 15 amino acid from the C-terminus of human keratin 14. Cellular Localization: Cytoplasmic
Form
Supplied as a liquid in PBS. Also available with BSA and azide, see 172073.
Purity
Purified by Protein A/G affinity chromatography.
Specificity
Recognizes Cytokeratin 14. Species Crossreactivity: Human, Mouse, Rat

Intended for research use only. Not for use in human, therapeutic, or diagnostic applications.

References
1. Perkins W et. al. J Cutaneous Pathol, 1992, 19(6):476-82. 2. Kasper M. Histochemistry, 1991, 95(6):613-20. 3. Leigh I M et. al. (1988) Dermatology, 91:415.
USBio References
No references available
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