• Product name

  • Description

    Rabbit polyclonal to Occludin
  • Host species

  • Tested applications

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

    Reacts with: Human
  • Immunogen

    Recombinant fragment corresponding to Human Occludin aa 285-430.
    Database link: Q16625

  • Positive control

    • WB: MCF7 whole cell lysate. IHC-P: Human colon cancer tissue. ICC/IF: MCF7 cells.


  • Form

  • Storage instructions

    Shipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C long term. Avoid freeze / thaw cycle.
  • Storage buffer

    pH: 7.40
    Preservative: 0.03% Proclin
    Constituents: 50% Glycerol, PBS
  • Concentration information loading...
  • Purity

    Protein G purified
  • Purification notes

    Purity >95%
  • Clonality

  • Isotype

  • Research areas


Our Abpromise guarantee covers the use of ab235986 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
ICC/IF 1/50 - 1/200.
IHC-P 1/200 - 1/500.
WB 1/500 - 1/5000. Predicted molecular weight: 59 kDa.


  • Function

    May play a role in the formation and regulation of the tight junction (TJ) paracellular permeability barrier. It is able to induce adhesion when expressed in cells lacking tight junctions.
  • Tissue specificity

    Localized at tight junctions of both epithelial and endothelial cells. Highly expressed in kidney. Not detected in testis.
  • Involvement in disease

    Defects in OCLN are the cause of band-like calcification with simplified gyration and polymicrogyria (BLCPMG) [MIM:251290]; also known as pseudo-TORCH syndrome. BLCPMG is a neurologic disorder with characteristic clinical and neuroradiologic features that mimic intrauterine TORCH infection in the absence of evidence of infection. Affected individuals have congenital microcephaly, intracranial calcifications, and severe developmental delay.
  • Sequence similarities

    Belongs to the ELL/occludin family.
    Contains 1 MARVEL domain.
  • Domain

    The C-terminal is cytoplasmic and is important for interaction with ZO-1. Sufficient for the tight junction localization. Involved in the regulation of the permeability barrier function of the tight junction (By similarity). The first extracellular loop participates in an adhesive interaction.
  • Post-translational

    Phosphorylated upon DNA damage, probably by ATM or ATR. Dephosphorylated by PTPRJ. The tyrosine phosphorylation on Tyr-398 and Tyr-402 reduces its ability to interact with TJP1.
  • Cellular localization

    Membrane. Cell junction > tight junction.
  • Information by UniProt
  • Database links

  • Alternative names

    • BLCPMG antibody
    • FLJ08163 antibody
    • FLJ18079 antibody
    • FLJ77961 antibody
    • FLJ94056 antibody
    • MGC34277 antibody
    • Occludin antibody
    • Ocln antibody
    • OCLN_HUMAN antibody
    • Phosphatase 1 regulatory subunit 115 antibody
    • PPP1R115 antibody
    • PTORCH1 antibody
    • Tight junction protein occludin antibody
    see all


  • Anti-Occludin antibody (ab235986) at 1/500 dilution + MCF7 (Human breast adenocarcinoma cell line) whole cell lysate

    Goat polyclonal to rabbit IgG at 1/50000 dilution

    Predicted band size: 59 kDa

  • Paraffin-embedded human colon cancer tissue stained for Occludin using ab235986 at 1/400 dilution in immunohistochemical analysis.

    After dewaxing and hydration, antigen retrieval was mediated by high pressure in a citrate buffer (pH 6.0). Section was blocked with 10% normal goat serum 30 minutes at RT. Then primary antibody (1% BSA) was incubated at 4°C overnight. The primary is detected by a biotinylated secondary antibody and visualized tissue using an HRP conjugated SP system.

  • 4% formaldehyde-fixed, 0.2% Triton X-100 permeabilized MCF7 (Human breast adenocarcinoma cell line) cells stained for Occludin (green) using ab235986 at 1/133 dilution in ICC/IF, followed by an Alexa Fluor 488® conjugated Goat Anti-Rabbit IgG (H+L). Counterstained with DAPI.


ab235986 has not yet been referenced specifically in any publications.

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