KRT20 antibody
Quick Overview for KRT20 antibody (ABIN111168)
Target
See all KRT20 AntibodiesReactivity
Host
Clonality
Conjugate
Application
Clone
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Specificity
- IT-Ks 20.3 represents an excellent marker for certain types of carcinomas such as adenocarcinomas of the colon, transitional cell carcinomas of the bladder and Merkel cell tumors of the skin. Very sensitive detection of intestestinal and gastric foveolar epithelium, urothelial umbrella cells, Merkel cells of epidermis as well as tumors originating therefrom (e.g. primary and metastatic colorectal carcinoma). Adenocarcinomas of breast, lung, endometrium and ovary (non-mucinous) as well as neuroendocrine tumors of the lung are essentially negative. Polypeptide recognized: protein IT (keratin K20, Mr 46 000, formerly also designated cytokeratin 20).
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Purification
- Protein A affinity chromatography
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Immunogen
- Electrophoretically purified keratin K20 from human intestinal mucosa.
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Isotype
- IgG1
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Application Notes
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Immunohistochemistry on frozen sections: 1: 10. Western Blot. Incubation Time: 1 h at RT or over night at 2-8C.
Other applications not tested.
Optimal dilutions are dependent on conditions and should be determined by the user. -
Restrictions
- For Research Use only
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Reconstitution
- Restore in 1 mL dist. water
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Buffer
- Contains 0.09 % sodium azide, 0.5 % BSA in PBS buffer, pH 7.4
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Preservative
- Sodium azide
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Precaution of Use
- This product contains sodium azide: a POISONOUS AND HAZARDOUS SUBSTANCE which should be handled by trained staff only.
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Handling Advice
- Avoid repeated freezing and thawing.
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Storage
- 4 °C/-20 °C
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Storage Comment
- Prior to reconstitution store at 2-8 °C. Following reconstitution store undiluted at 2-8 °C for one month or (in aliquots) at -20 °C for longer.
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- KRT20 (Keratin 20 (KRT20))
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Alternative Name
- Cytokeratin 20
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Background
- Cytokeratin 20 is a type I keratin which is primarily expressed in gastric and intestinal epithelium, urothelium, and Merkel-cells. The keratins are intermediate filament proteins responsible for the structural integrity of epithelial cells and are subdivided into cytokeratins and hair keratins. The type I cytokeratins consist of acidic proteins which are arranged in pairs of heterotypic keratin chains. Their genes are clustered in a region of chromosome 17q12-q21. Cytokeratin 20 is a major cellular protein of mature enterocytes and goblet cells and is specifically expressed in the gastric and intestinal mucosa. It is also expressed in adenocarcinomas of the colon, stomach, pancreas and the bile system and is present in mucinous ovarian tumors, transitional-cell and Merkel-cell carcinomas. Notably, the squamous cell carcinomas and adenocarcinomas of the breast, lung, and endometrium, non-mucinous tumors of the ovary, and small cell carcinomas lack cytokeratin 20.Synonyms: CK20, Cytokeratin 20, K20, KRT20, Keratin type I cytoskeletal 20, Keratin-20, Protein IT
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Gene ID
- 54474
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NCBI Accession
- NP_061883
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UniProt
- P35900
Target
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