• Product name
    Anti-Cytokeratin 20 antibody
    See all Cytokeratin 20 primary antibodies
  • Description
    Rabbit polyclonal to Cytokeratin 20
  • Tested applications
    Suitable for: WB, IHC-P, ICC/IFmore details
  • Species reactivity
    Reacts with: Mouse, Human
  • Immunogen

    Recombinant fragment, corresponding to a region within amino acids 75-287 of Human Cytokeratin 20 (NP_061883).

  • Positive control
    • HeLa cell, HT29 xenograft



Our Abpromise guarantee covers the use of ab97511 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 1/500 - 1/3000. Predicted molecular weight: 48 kDa.
IHC-P 1/100 - 1/500.
ICC/IF 1/100 - 1/200.


  • Function
    Plays a significant role in maintaining keratin filament organization in intestinal epithelia. When phosphorylated, plays a role in the secretion of mucin in the small intestine.
  • Tissue specificity
    Expressed predominantly in the intestinal epithelium. Expressed in luminal cells of colonic mucosa. Also expressed in the Merkel cells of keratinized oral mucosa; specifically at the tips of some rete ridges of the gingival mucosa, in the basal layer of the palatal mucosa and in the taste buds of lingual mucosa.
  • Sequence similarities
    Belongs to the intermediate filament family.
  • Developmental stage
    First detected at embryonic week 8 in individual 'converted' simple epithelial cells of the developing intestinal mucosa. In later fetal stages, synthesis extends over most goblet cells and a variable number of villus enterocytes. In the developing gastric and intestinal mucosa, expressed in all enterocytes and goblet cells as well as certain 'low-differentiated' columnar cells, whereas the neuroendocrine and Paneth cells are negative.
  • Post-translational
    Hyperphosphorylation at Ser-13 occurs during the early stages of apoptosis but becomes less prominent during the later stages. Phosphorylation at Ser-13 also increases in response to stress brought on by cell injury.
    Proteolytically cleaved by caspases during apoptosis. Cleavage occurs at Asp-228.
  • Cellular localization
  • Information by UniProt
  • Database links
  • Alternative names
    • CD20 antibody
    • CK 20 antibody
    • CK-20 antibody
    • CK20 antibody
    • Cytokeratin-20 antibody
    • Cytokeratin20 antibody
    • K1C20_HUMAN antibody
    • K20 antibody
    • KA20 antibody
    • Keratin 20 antibody
    • keratin 20, type I antibody
    • keratin 21, rat, homolog of antibody
    • Keratin antibody
    • Keratin type I cytoskeletal 20 antibody
    • Keratin-20 antibody
    • Keratin20 antibody
    • KRT 20 antibody
    • KRT 21 antibody
    • KRT20 antibody
    • KRT21 antibody
    • MGC35423 antibody
    • OTTHUMP00000164518 antibody
    • Protein IT antibody
    • type I cytoskeletal 20 antibody
    see all

Anti-Cytokeratin 20 antibody images

  • Anti-Cytokeratin 20 antibody (ab97511) at 1/3000 dilution + HeLa whole cell lysate at 30 µg

    Predicted band size : 48 kDa
    10% SDS PAGE
  • Ab97511 staining Cytokeratin 20 in Mouse urinary bladder by Immunohistochemistry (IHC-P-paraformaldehyde-fixed, paraffin embedded sections). Sample was incubated with primary antibody at a 1:500 dilution. 

  • Ab97511 staining Cytokeratin 20 in HT29 xenograft by Immunohistochemistry (IHC-P - paraformaldehyde - fixed, paraffin embedded sections). Samples were incubated with primary antibody at 1:100 dilution. 

  • Immunofluorescence analysis of Cytokeratin 20 in paraformaldehyde fixed HeLa, using ab97511 at a 1/200 dilution.
    Lower image (2): merged with DNA probe.

References for Anti-Cytokeratin 20 antibody (ab97511)

This product has been referenced in:
  • Fasano M  et al. Small bowel metastasis from pancreatic cancer in a long-term survival patient with synchronous advanced malignant pleural mesothelioma: A case report and literature review. Oncol Lett 12:4505-4509 (2016). IHC-P ; Human . Read more (PubMed: 28105159) »
  • Liu H  et al. Single-cell clones of liver cancer stem cells have the potential of differentiating into different types of tumor cells. Cell Death Dis 4:e857 (2013). IHC-P ; Human . Read more (PubMed: 24136221) »

See all 2 Publications for this product

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