• Product name
  • Description
    Rabbit polyclonal to Claudin 7
  • Tested applications
    Suitable for: WB, ICC/IFmore details
  • Species reactivity
    Reacts with: Human
    Predicted to work with: Dog, Pig
  • Immunogen

    Synthetic peptide conjugated to KLH derived from within residues 100 - 200 of Human Claudin 7.

    (Peptide available as ab108461.)

  • Positive control
    • This antibody gave a positive signal in Human prostate tissue lysate.


  • Form
  • Storage instructions
    Shipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C or -80°C. Avoid freeze / thaw cycle.
  • Storage buffer
    Preservative: 0.02% Sodium Azide
    Constituents: 1% BSA, PBS, pH 7.4
  • Concentration information loading...
  • Purity
    Immunogen affinity purified
  • Clonality
  • Isotype
  • Research areas


Our Abpromise guarantee covers the use of ab95221 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 µg/ml. Detects a band of approximately 20 kDa (predicted molecular weight: 22 kDa).
ICC/IF Use a concentration of 5 µg/ml.


  • Function
    Plays a major role in tight junction-specific obliteration of the intercellular space.
  • Tissue specificity
    Expressed in kidney, lung and prostate. Isoform 1 seems to be predominant, except in some normal prostate samples, where isoform 2 is the major form. Down-regulated in breast cancers, including ductal carcinoma in situ (DCIS), lobular carcinoma in situ (LCIS) and invasive ductal carcinoma (IDC) (at protein level), as well as in several cancer cell lines. Loss of expression correlates with histological grade, occurring predominantly in high-grade lesions.
  • Sequence similarities
    Belongs to the claudin family.
  • Post-translational
  • Cellular localization
    Cell membrane. Lateral cell membrane. Cell junction > tight junction. Co-localizes with EPCAM at the lateral cell membrane and tight junction.
  • Information by UniProt
  • Database links
  • Alternative names
    • CEPTR L2 antibody
    • CEPTRL 2 antibody
    • CEPTRL2 antibody
    • Claudin 1 antibody
    • Claudin 9 antibody
    • Claudin-7 antibody
    • Claudin1 antibody
    • Claudin7 antibody
    • Claudin9 antibody
    • CLD7_HUMAN antibody
    • CLDN 7 antibody
    • CLDN-7 antibody
    • CLDN7 antibody
    • Clostridium perfringens enterotoxin receptor like 2 antibody
    • CPETR L2 antibody
    • CPETRL 2 antibody
    • CPETRL2 antibody
    • Hs.84359 antibody
    see all

Anti-Claudin 7 antibody images

  • Anti-Claudin 7 antibody (ab95221) at 1 µg/ml + Human prostate tissue lysate (cirrhosis) - total protein (ab30307) at 10 µg

    Goat Anti-Rabbit IgG H&L (HRP) preadsorbed (ab97080) at 1/5000 dilution
    Developed using the ECL technique

    Performed under reducing conditions.

    Predicted band size : 22 kDa
    Observed band size : 22 kDa
    Additional bands at : 100 kDa. We are unsure as to the identity of these extra bands.

    Exposure time : 12 minutes
  • ICC/IF image of ab95221 stained MCF7 cells. The cells were 4% PFA fixed (10 min) and then incubated in 1%BSA / 10% normal goat serum / 0.3M glycine in 0.1% PBS-Tween for 1h to permeabilise the cells and block non-specific protein-protein interactions. The cells were then incubated with the antibody (ab95221, 5µg/ml) overnight at +4°C. The secondary antibody (green) was ab96899, DyLight® 488 goat anti-rabbit IgG (H+L) used at a 1/250 dilution for 1h. Alexa Fluor® 594 WGA was used to label plasma membranes (red) at a 1/200 dilution for 1h. DAPI was used to stain the cell nuclei (blue) at a concentration of 1.43µM.

References for Anti-Claudin 7 antibody (ab95221)

ab95221 has not yet been referenced specifically in any publications.

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