Cytokeratin 18/19 antibody

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Human anti Cytokeratin 18/19

Cytokeratin 18/19 antibody recognizes the keratin, type I cytoskeletal 18 , also known as cell proliferation-inducing gene 46, protein cytokeratin-18, CK-18, keratin-18 or K18. The antibody has been extensively validated for western blotting using whole cell lysates.

Product Type
PrecisionAb™ Monoclonal
HuCAL Fab bivalent
Product CodeApplicationsDatasheetMSDSPack SizeList PriceQuantity
VMA00011 WB 100 µl
Human anti Human cytokeratin 18/19 antibody recognizes human cytokeratin 18, a amino acid type I intermediate filament protein expressed by epithelial cells. The intermediate filaments are expressed as heterodimers in epithelial tissues. Cytokeratin 18 (CK18) is often co-expressed with cytokeratin 8 (CK8). The CK18/CK8 heterodimer is the major cytokeratin pair found in simple epithelia such as that found in the liver, intestine and breast ducts. CK18 plays an important role in maintaining epithelial cell integrity.

This clone has also been demonstrated to cross-react with cytokeratin 19. Human anti Human cytokeratin 18/19 antibody recognizes cytokeratin 18 as a band of ~48 kDa and cytokeratin 19 as a band of ~44 kDa in western blotting under reducing conditions.

Product Details

Target Species
Western Blotting
Anti cytokeratin 18/19 antibody detects bands of approximately 44 kDa in HeLa cell lysates.
Product Form
A bivalent human recombinant Fab selected from the HuCAL® GOLD phage display library, expressed in E. coli. This Fab fragment is dimerized via a helix-turn-helix motif. The antibody is tagged with a myc-tag (EQKLISEEDL) and a his-tag (HHHHHH) at the C-terminus of the antibody heavy chain. This product is supplied as a liquid.
Recombinant human monoclonal antibody purified by metal chelate affinity chromatography
Buffer Solution
Phosphate buffered saline
Preservative Stabilisers
0.09% Sodium Azide (NaN3)
Recombinant human cytokeratin 18
Instructions For Use
Please refer to the PrecisionAb western blotting protocol. For additional information on secondary antibody dilution and exposure time see product web page.

Storage Information

Store undiluted at -20oC, avoiding repeated freeze thaw cycles.
As supplied, 12 months from date of despatch.

More Information

P05783 Related reagents
P08727 Related reagents
Entrez Gene
KRT18 Related reagents
KRT19 Related reagents
GO Terms
GO:0005515 protein binding
GO:0005198 structural molecule activity
GO:0007049 cell cycle
GO:0009653 anatomical structure morphogenesis
GO:0034451 centriolar satellite
GO:0043000 Golgi to plasma membrane CFTR protein transport
GO:0043066 negative regulation of apoptosis
GO:0044419 interspecies interaction between organisms
GO:0045095 keratin filament
GO:0048471 perinuclear region of cytoplasm
Sold under license of U.S. Patents 6753136, 7785859 and 8273688 and corresponding patents. This antibody was developed by Bio-Rad, Zeppelinstr. 4, 82178 Puchheim, Germany. PrecisionAb™ is a trademark of Bio-Rad Laboratories. His-tag is a registered trademark of EMD Biosciences.
For research purposes only

Applications of Cytokeratin 18/19 antibody

This product has been reported to work in the following applications. This information is derived from testing within our laboratories, peer-reviewed publications or personal communications from the originators. Please refer to references indicated for further information. For general protocol recommendations, please visit the antibody protocols page.
Application Name Verified Min Dilution Max Dilution
Western Blotting 1/1000

PrecisionAb antibodies have been extensively validated for the western blot application. The antibody has been validated at the suggested dilution. Where this product has not been tested for use in a particular technique this does not necessarily exclude its use in such procedures. Further optimization may be required dependant on sample type.

Secondary Antibodies Available

Description Product Code Pack Size Applications List Price Quantity
Mouse anti Penta Histidine Tag:HRP MCA5995P 125 µl E WB
Goat anti Human IgG F(ab')2:HRP STAR126P 0.5 ml E WB
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