Recombinant
RabMAb

Recombinant Anti-Cytokeratin 18 antibody [E431-1] (HRP) (ab194126)

Overview

  • Product name

    Anti-Cytokeratin 18 antibody [E431-1] (HRP)
    See all Cytokeratin 18 primary antibodies
  • Description

    Rabbit monoclonal [E431-1] to Cytokeratin 18 (HRP)
  • Host species

    Rabbit
  • Conjugation

    HRP
  • Tested applications

    Suitable for: IHC-P, WBmore details
  • Species reactivity

    Reacts with: Human
  • Immunogen

    Full length native protein (purified) corresponding to Human Cytokeratin 18.
    Database link: P05783

  • Positive control

    • WB: A431 whole cell lysate. IHC-P: Human pancreatic cancer tissue.
  • General notes

    Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMab® patents.

Properties

Applications

Our Abpromise guarantee covers the use of ab194126 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
IHC-P 1/100. Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.
WB 1/5000. Detects a band of approximately 48 kDa (predicted molecular weight: 48 kDa).

Target

  • Function

    Involved 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 specificity

    Expressed in colon, placenta, liver and very weakly in exocervix. Increased expression observed in lymph nodes of breast carcinoma.
  • Involvement in disease

    Defects in KRT18 are a cause of cirrhosis (CIRRH) [MIM:215600].
  • Sequence similarities

    Belongs to the intermediate filament family.
  • Post-translational
    modifications

    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 localization

    Cytoplasm > 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

Images

  • IHC image of Cytokeratin 18 staining in a section of formalin-fixed paraffin-embedded human pancreatic cancer tissue*, performed on a Leica BOND. The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH6, epitope retrieval solution 1) for 20mins. The section was then incubated with ab194126 at 1/100 dilution, for 15 mins at room temperature. DAB was used as the chromogen. The section was then counterstained with haematoxylin and mounted with DPX. The inset negative control image is taken from an identical assay without primary antibody.

    For other IHC staining systems (automated and non-automated) customers should optimize variable parameters such as antigen retrieval conditions, primary antibody concentration and antibody incubation times.

    *Tissue obtained from the Human Research Tissue Bank, supported by the NIHR Cambridge Biomedical Research Centre

  • Anti-Cytokeratin 18 antibody [E431-1] (HRP) (ab194126) at 1/5000 dilution + A431 (Human epithelial carcinoma cell line) whole cell lysate at 10 µg

    Developed using the ECL technique.

    Performed under reducing conditions.

    Predicted band size: 48 kDa
    Observed band size: 48 kDa


    Exposure time: 3 minutes


    This blot was produced using a 4-12% Bis-tris gel under the MOPS buffer system. The gel was run at 200V for 50 minutes before being transferred onto a Nitrocellulose membrane at 30V for 70 minutes. The membrane was then blocked for an hour using 2% Bovine Serum Albumin before being incubated with ab194126 overnight at 4°C. Antibody binding was visualised using ECL development solution ab133406.

References

ab194126 has not yet been referenced specifically in any publications.

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