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Anti-OCLN antibody produced in rabbit

Prestige Antibodies® Powered by Atlas Antibodies, affinity isolated antibody, buffered aqueous glycerol solution

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MDL number:
Human Protein Atlas Number:

biological source


Quality Level



antibody form

affinity isolated antibody

antibody product type

primary antibodies



product line

Prestige Antibodies® Powered by Atlas Antibodies


buffered aqueous glycerol solution

species reactivity



immunoblotting: 0.04-0.4 μg/mL
immunofluorescence: 0.25-2 μg/mL
immunohistochemistry: 1:200-1:500

immunogen sequence


UniProt accession no.

shipped in

wet ice

storage temp.


target post-translational modification


Gene Information

human ... OCLN(4950)

Related Categories

General description

Occludin (OCLN) is an important membrane protein that is localized in the tight junction (TJ). This protein is made up of four transmembrane proteins, a short N-terminal cytoplasmic domain, two extracellular loops, one intracellular turn, and a long C-terminal cytoplasmic domain. Occludin is expressed in the endothelial and epithelial cells of TJs. OCLN gene is mapped on the human chromosome at 5q13.2.


Occludin recombinant protein epitope signature tag (PrEST)


All Prestige Antibodies Powered by Atlas Antibodies are developed and validated by the Human Protein Atlas (HPA) project and as a result, are supported by the most extensive characterization in the industry.

The Human Protein Atlas project can be subdivided into three efforts: Human Tissue Atlas, Cancer Atlas, and Human Cell Atlas. The antibodies that have been generated in support of the Tissue and Cancer Atlas projects have been tested by immunohistochemistry against hundreds of normal and disease tissues and through the recent efforts of the Human Cell Atlas project, many have been characterized by immunofluorescence to map the human proteome not only at the tissue level but now at the subcellular level. These images and the collection of this vast data set can be viewed on the Human Protein Atlas (HPA) site by clicking on the Image Gallery link. We also provide Prestige Antibodies® protocols and other useful information.
Anti-OCLN antibody produced in rabbit has been used in immunohistochemical staining (1:500).

Biochem/physiol Actions

Occludin (OCLN) is involved in maintaining the integrity of the blood-brain barrier (BBB). Degradation of occludin may increase the permeability of the BBB, observed in several central nervous system disorders such as ischemic stroke. Mutations in the OCLN gene lead to the progression of human breast cancer. Mutations in this gene are also associated with brain calcification and chronic kidney disease in children. Mutations in the OCLN gene can also cause bilateral band-like calcification with polymicrogyria (BLC-PMG).

Features and Benefits

Prestige Antibodies® are highly characterized and extensively validated antibodies with the added benefit of all available characterization data for each target being accessible via the Human Protein Atlas portal linked just below the product name at the top of this page. The uniqueness and low cross-reactivity of the Prestige Antibodies® to other proteins are due to a thorough selection of antigen regions, affinity purification, and stringent selection. Prestige antigen controls are available for every corresponding Prestige Antibody and can be found in the linkage section.

Every Prestige Antibody is tested in the following ways:
  • IHC tissue array of 44 normal human tissues and 20 of the most common cancer type tissues.
  • Protein array of 364 human recombinant protein fragments.


Corresponding Antigen APREST83049

Physical form

Solution in phosphate-buffered saline, pH 7.2, containing 40% glycerol and 0.02% sodium azide

Legal Information

Prestige Antibodies is a registered trademark of Merck KGaA, Darmstadt, Germany


Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Storage Class

10 - Combustible liquids




Not applicable


Not applicable


Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)

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Shuhua Yuan et al.
Brain circulation, 6(3), 152-162 (2020-11-20)
Occludin is a key structural component of the blood-brain barrier (BBB) that has recently become an important focus of research in BBB damages. Many studies have demonstrated that occludin could regulate the integrity and permeability of the BBB. The function
Mary C O'Driscoll et al.
American journal of human genetics, 87(3), 354-364 (2010-08-24)
Band-like calcification with simplified gyration and polymicrogyria (BLC-PMG) is a rare autosomal-recessive neurological disorder showing highly characteristic clinical and neuroradiological features. Affected individuals demonstrate early-onset seizures, severe microcephaly, and developmental arrest with bilateral, symmetrical polymicrogyria (PMG) and a band of
M Saitou et al.
Molecular biology of the cell, 11(12), 4131-4142 (2000-12-05)
Occludin is an integral membrane protein with four transmembrane domains that is exclusively localized at tight junction (TJ) strands. Here, we describe the generation and analysis of mice carrying a null mutation in the occludin gene. Occludin -/- mice were
Tracey A Martin et al.
International journal of molecular medicine, 26(5), 723-734 (2010-09-30)
Occludin is an integral membrane protein localised at tight junctions (TJs). It has become clear that the TJ is an important structure that cancer cells must overcome in order to metastasize successfully. The purpose of this study was to elucidate
Whole genome sequencing identifies a novel occludin mutation in microcephaly with band-like calcification and polymicrogyria that extends the phenotypic spectrum.
Mahmoud F Elsaid et al.
American journal of medical genetics. Part A, 164A(6), 1614-1617 (2014-03-29)

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