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Safety Information

CBL208

Sigma-Aldrich

Anti-Cytokeratin 20 Antibody, clone IT-Ks20.8

clone IT-Ks20.8, Chemicon®, from mouse

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About This Item

UNSPSC Code:
12352203
eCl@ss:
32160702
NACRES:
NA.41

biological source

mouse

Quality Level

100

antibody form

purified immunoglobulin

antibody product type

primary antibodies

clone

IT-Ks20.8, monoclonal

species reactivity

human

should not react with

mouse, rat

manufacturer/tradename

Chemicon®

technique(s)

immunohistochemistry: suitable (paraffin)
western blot: suitable

isotype

IgG2a

NCBI accession no.

NM_019010.1

UniProt accession no.

P35900

shipped in

wet ice

Gene Information

human ... KRT20(54474)
mouse ... Krt20(66809)
rat ... Krt20(286912)

General description

IT-Ks 20.8 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 intestinal 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.

Specificity

The antibody is specific for the 46 kDa polypeptide (cytokeratin 20).

Immunogen

Electrophoretically purified cytokeratin 20 from human intestinal mucosa

Application

Western blotting
Immunohistochemistry: 1:10 dilution of stock on frozen tissues, with one hour incubation at room temp or overnight at 2°-8°C. For paraffin sections, 1:100 dilution of antibody with protease pretreatment and/or heat induced epitope retrieval recommended.
Cytological material

Studies of cultured cell lines HT-29, LoVo, DLD-1, SW1116, CaCo-2 & RT-4.

Optimal working dilutions must be determined by the end user.
Detect Cytokeratin 20 using this Anti-Cytokeratin 20 Antibody, clone IT-Ks20.8 validated for use in WB, IH(P).
Research Category
Cell Structure
Research Sub Category
Cytokeratins

Linkage

Replaces: MABT150

Physical form

Format: Purified
Protein A purified immunoglobulin lyophilized from PBS, pH 7.4, containing 0.5% BSA and 0.09% sodium azide. Reconstitute with 1 mL distilled water.

Storage and Stability

Once reconstituted, maintain at 2°-8°C for up to 12 months from date of receipt. For extended storage, aliquots can be stored at -20°C. Avoid repeated freeze/thaw cycles.

Analysis Note

Control
Positive cell lines include HT-29, LoVo, DLD-1, SW 1116, CaCo-2 and RT-4.

Legal Information

CHEMICON is a registered trademark of Merck KGaA, Darmstadt, Germany

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

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Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H312 + H332 - H412

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Aquatic Chronic 3

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

PDSCL

Poisonous substance

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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P Harnden et al.
British journal of urology, 78(6), 870-875 (1996-12-01)
To investigate the dysregulation of cytokeratin 20 (CK20) expression in urothelial dysplasia and its potential as a diagnostic aid. Twenty-two patients were selected on the basis that they had undergone one or more biopsies showing dysplasia before the development of
V J Möbus et al.
British journal of cancer, 69(3), 422-428 (1994-03-01)
Two human ovarian (OV-MZ-10, OV-MZ-15) and two colon cancer cell lines (CO-MZ-5, CO-MZ-6) were newly established in permanent cell culture. These cell lines have been maintained in vitro for 5-6 years, the passage number varying from 25 to 228. They
The distribution and origin of keratin 20-containing taste buds in rat and human.
Zhang, C and Oakley, B
Differentiation, 61, 121-127 (1996)
Epithelial markers and differentiation in adnexal neoplasms of the skin: an immunohistochemical study including individual cytokeratins.
Demirkesen, C, et al.
Journal of cutaneous pathology, 22, 518-535 (1995)
I Moll et al.
Archives of dermatological research, 283(5), 300-309 (1991-01-01)
Human eccrine sweat gland ducts and benign and malignant eccrine poromas were studied for the expression of various cytokeratins (CK) and vimentin by applying immunoperoxidase and immunofluorescence microscopy to frozen or paraffin-embedded sections, and using two-dimensional gel electrophoresis and immunoblotting.

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