• Product nameAnti-Cytokeratin 18 antibody
    See all Cytokeratin 18 primary antibodies
  • Description
    Mouse monoclonal to Cytokeratin 18
  • Tested applicationsSuitable for: WB, ICC/IF, IHC-P, Flow Cytmore details
  • Species reactivity
    Reacts with: Human
  • Immunogen

    Recombinant full length protein, corresponding to amino acids 1-431 of Human Cytokeratin 18



Our Abpromise guarantee covers the use of ab55395 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
WB Use a concentration of 1 - 5 µg/ml.
ICC/IF Use a concentration of 10 µg/ml.
IHC-P Use a concentration of 3 µg/ml.
Flow Cyt Use 0.5µg for 106 cells. ab170191-Mouse monoclonal IgG2a, is suitable for use as an isotype control with this antibody.


  • FunctionInvolved in the uptake of thrombin-antithrombin complexes by hepatic cells (By similarity). When phosphorylated, plays a role in filament reorganization. Involved in the delivery of mutated CFTR to the plasma membrane. Together with KRT8, is involved in interleukin-6 (IL-6)-mediated barrier protection.
  • Tissue specificityExpressed in colon, placenta, liver and very weakly in exocervix. Increased expression observed in lymph nodes of breast carcinoma.
  • Involvement in diseaseDefects in KRT18 are a cause of cirrhosis (CIRRH) [MIM:215600].
  • Sequence similaritiesBelongs to the intermediate filament family.
  • Post-translational
    Phosphorylation at Ser-34 increases during mitosis. Hyperphosphorylated at Ser-53 in diseased cirrhosis liver. Phosphorylation increases by IL-6.
    Proteolytically cleaved by caspases during epithelial cell apoptosis. Cleavage occurs at Asp-238 by either caspase-3, caspase-6 or caspase-7.
    O-glycosylated at multiple sites; glycans consist of single N-acetylglucosamine residues.
  • Cellular localizationCytoplasm > perinuclear region.
  • Information by UniProt
  • Database links
  • Alternative names
    • Cell proliferation inducing gene 46 protein antibody
    • Cell proliferation inducing protein 46 antibody
    • Cell proliferation-inducing gene 46 protein antibody
    • CK 18 antibody
    • CK-18 antibody
    • CK18 antibody
    • CYK 18 antibody
    • CYK18 antibody
    • Cytokeratin 18 antibody
    • Cytokeratin endo B antibody
    • Cytokeratin-18 antibody
    • K 18 antibody
    • K18 antibody
    • K1C18_HUMAN antibody
    • KA18 antibody
    • Keratin 18 antibody
    • Keratin 18, type I antibody
    • Keratin D antibody
    • keratin, type I cytoskeletal 18 antibody
    • Keratin-18 antibody
    • Krt18 antibody
    see all

Anti-Cytokeratin 18 antibody images

  • Cytokeratin 18 antibody (ab55395) used in immunofluorescence at 10ug/ml on HeLa cells.
  • Cytokeratin 18 antibody (ab55395) used in immunohistochemistry at 3ug/ml on formalin fixed and paraffin embedded human liver tissue.
  • Cytokeratin 18 antibody (ab55395) at 1ug/lane + HeLa cell lysate at 25ug/lane.
  • Overlay histogram showing MCF7 cells stained with ab55395 (red line). The cells were fixed with 80% methanol (5 min) and then permeabilized with 0.1% PBS-Tween for 20 min. The cells were then incubated in 1x PBS / 10% normal goat serum / 0.3M glycine to block non-specific protein-protein interactions followed by the antibody (ab55395, 0.5µg/1x106 cells) for 30 min at 22ºC. The secondary antibody used was DyLight® 488 goat anti-mouse IgG (H+L) (ab96879) at 1/500 dilution for 30 min at 22ºC. Isotype control antibody (black line) was mouse IgG2a [ICIGG2A] (ab91361, 1µg/1x106 cells) used under the same conditions. Acquisition of >5,000 events was performed. This antibody gave a positive signal in MCF7 cells fixed with 4% paraformaldehyde (10 min)/permeabilized with 0.1% PBS-Tween for 20 min used under the same conditions.

References for Anti-Cytokeratin 18 antibody (ab55395)

This product has been referenced in:
  • Bhardwaj A  et al. Restoration of PPP2CA expression reverses epithelial-to-mesenchymal transition and suppresses prostate tumour growth and metastasis in an orthotopic mouse model. Br J Cancer 110:2000-10 (2014). Mouse . Read more (PubMed: 24642616) »

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