|Application ||WB, IHC, E|
|Clone Names||5A8A4; 3G8D12|
|Calculated MW||16533 Da|
|Description||p16 (cyclin-dependent kinase inhibitor 2A, INK4a) is a tumor suppressor protein. It is a specific inhibitor of Cdk 4 / Cdk 6, and a tumor suppressor involved in the pathogenesis of a variety of malignancies. Recent analyses of the p16 INK4a gene revealed homozygous deletions, nonsense, missense, or frameshift mutations in several human cancers. Although the frequency of p16 INK4a abnormalities is higher in tumor derived cell lines than in unselected primary tumors, significant subsets of clinical cases with aberrant p16 INK4a gene have been reported among melanomas, gliomas, esophageal, pancreatic, lung, and urinary bladder carcinomas, and some types of leukemia.|
|Immunogen||Purified recombinant fragment of P16 expressed in E. Coli.|
|Formulation||Ascitic fluid containing 0.03% sodium azide.|
|Other Names||Cyclin-dependent kinase inhibitor 2A, isoforms 1/2/3, Cyclin-dependent kinase 4 inhibitor A, CDK4I, Multiple tumor suppressor 1, MTS-1, p16-INK4a, p16-INK4, p16INK4A, CDKN2A, CDKN2, MTS1|
|Dilution||WB~~1/500 - 1/2000|
IHC~~1/500 - 1/2000
|Storage||Maintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C in small aliquots to prevent freeze-thaw cycles.|
|Precautions||Human P16 Antibody is for research use only and not for use in diagnostic or therapeutic procedures.|
|Function||Acts as a negative regulator of the proliferation of normal cells by interacting strongly with CDK4 and CDK6. This inhibits their ability to interact with cyclins D and to phosphorylate the retinoblastoma protein.|
|Cellular Location||Cytoplasm. Nucleus|
|Tissue Location||Widely expressed but not detected in brain or skeletal muscle. Isoform 3 is pancreas-specific|
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1. Bai, F. et al. Mol. Cell. Biol.2003 23, 1269-1277. 2. Lowe, S.W. and Sherr, C.J. Curr. Opin. Genet.2003 Dev.13, 77-83.3. Sherr, C.J. Nat. Rev. Mol. Cell Biol.2001 2, 731-737.
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