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ABT146

Sigma-Aldrich

Anti-Occludin Antibody

from rabbit, purified by affinity chromatography

Synonym(s):

Occludin

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About This Item

UNSPSC Code:
12352203
eCl@ss:
32160702
NACRES:
NA.41

biological source

rabbit

Quality Level

antibody form

affinity isolated antibody

antibody product type

primary antibodies

clone

polyclonal

purified by

affinity chromatography

species reactivity

human

species reactivity (predicted by homology)

bovine (based on 100% sequence homology), mouse (based on 100% sequence homology), porcine (based on 100% sequence homology), canine (based on 100% sequence homology), primate (based on 100% sequence homology), rat (based on 100% sequence homology), equine (based on 100% sequence homology)

packaging

antibody small pack of 25 μg

technique(s)

western blot: suitable

NCBI accession no.

UniProt accession no.

shipped in

ambient

target post-translational modification

unmodified

Gene Information

General description

Occludin is a 65-kDa integral plasma-membrane protein located at the tight junctions. It is required for cytokine-induced regulation of the tight junction paracellular permeability barrier. Occludin is believed to prevent the transport of macromolecules through the tight junction. Encoded by the OLCN gene, occludin spans the plasma membrane four times, forming two extracellular loops and exposing its NH2 and COOH terminus to the cytosol. This cytoplasmic tail binds directly to the ZO family of proteins, which link the protein complex to the actin cytoskeleton. Phosphorylation/dephosphorylation plays a major role in regulation of occludin and tight junctions. Expression of occludin is required for infection of liver cells by hepatitis C virus (HCV).

Specificity

This antibody recognizes the N-terminus of Occludin.

Immunogen

Epitope: N-terminus
KLH-conjugated linear peptide corresponding to the N-terminus of human Occludin.

Application

Research Category
Cell Structure
Research Sub Category
ECM Proteins
This Anti-Occludin Antibody is validated for use in Western Blotting for the detection of Occludin.

Quality

Evaluated by Western Blot in human kidney tissue lysate.

Western Blot Analysis: 0.2 µg/mL of this antibody detected Occludin in 10 µg of human kidney tissue lysate.

Target description

~63 kDa observed. The calculated molecular weight is 63 kDa, however Occludin has been shown ranging from ~55 to ~65 kDa in western blots (Florian, P., et al. (2003). Biochemical and Biophysical Research Communications. 304:5-10).

Physical form

Affinity purified
Purified rabbit polyclonal in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.

Storage and Stability

Stable for 1 year at 2-8°C from date of receipt.

Analysis Note

Control
Human kidney tissue lysate

Other Notes

Concentration: Please refer to the Certificate of Analysis for the lot-specific concentration.

Disclaimer

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.

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Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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The blood-brain barrier (BBB) is formed by brain capillary endothelial cells (BECs) supported by pericytes and astrocytes. The BBB maintains homeostasis and protects the brain against toxic substances circulating in the blood, meaning that only a few drugs can pass

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