Tight Junction Protein 1 Antibody

Novus Biologicals | Catalog # NBP3-11284

Novus Biologicals
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Key Product Details

Species Reactivity

Human, Mouse, Canine

Applications

Flow Cytometry, Immunocytochemistry/ Immunofluorescence

Label

Unconjugated

Antibody Source

Polyclonal Rabbit
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Product Specifications

Immunogen

Recombinant human GST-Tight Junction Protein 1 (aa 1-888)

Specificity

The polyclonal antibody recognizes both ZO-1 alpha-minus and alpha-plus.

Clonality

Polyclonal

Host

Rabbit

Applications for Tight Junction Protein 1 Antibody

Application
Recommended Usage

Flow Cytometry

Optimal dilutions of this antibody should be experimentally determined.

Immunocytochemistry/ Immunofluorescence

Optimal dilutions of this antibody should be experimentally determined.
Application Notes
Dilutions to be used depend on detection system applied. It is recommended that users test the reagent and determine their own optimal dilutions. The typical starting working dilution is 1:50.

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Flow Cytometry

Formulation, Preparation, and Storage

Purification

Protein A purified

Formulation

0.2 um filtered solution in PBS, 0.1% BSA

Preservative

0.02% Sodium Azide

Concentration

0.1 mg/ml

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Store at 4C.

Background: Tight Junction Protein 1

The polyclonal antibody recognizes human zona occludens 1 (ZO-1), an ~220 kDa tight junction protein belonging to the membrane-associated guanlyate kinase (MAGUK) family. Members of this family are involved in epithelial and endothelial intercellular junctions. They each contain at least one PSD95/Dlg/ZO-1 (PDZ) domain, a Src homology 3 (SH3) domain, and an enzymatically inactive guanylate kinase domain. PDZ domains are 90-amino acid protein-protein binding domains that recognize at least a 3-residue peptide motif in the COOH termini of their binding partners. PDZ domain-containing proteins, like ZO-1, typically act as scaffolding proteins that organize membrane receptors and cytosolic proteins into multimeric signaling complexes often at the sites of cell-cell contact. The effectiveness and stability of the epithelial barrier depends on a complex of proteins composing different intercellular junctions, which include tight junctions, adherens junctions, and desmosomes.
ZO-1 is a peripheral membrane protein bound on the cytoplasmic surface of junctional contacts and is expressed in all tight junctions regardless of their properties. ZO-1 immunoprecipitates with its family member ZO-2. ZO-1 was shown to undergo tyrosine phosphorylation during tight junction formation and remodeling. Two different isoforms of ZO-1, alpha-minus and alpha-plus, have been described, which result from alternative splicing of an mRNA encoded by a single gene. The ZO-1 alpha-plus contains an 80 amino acids motif called alpha which is not present in ZO-1 alpha-minus. The alpha-containing isoform is found in most epithelial cell junctions. The short isoform (ZO-1 alpha-minus) is found both in endothelial cells and the highly specialized epithelial junctions of renal glomeruli and Sertoli cells of the seminiferous tubules. This difference in distribution provides molecular distinction among tight junctions. The polyclonal antibody was raised against amino acids 432-1150 of human ZO-1 and recognizes both ZO-1 alpha-minus and alpha-plus. It cross reacts with mouse and dog ZO-1.

Alternate Names

DKFZp686M05161, MGC133289, Tight junction protein 1, tight junction protein 1 (zona occludens 1), tight junction protein ZO-1, TJP1, ZO1, ZO-1, zona occludens 1, Zona occludens protein 1, zonula occludens 1 protein, Zonula occludens protein 1

Gene Symbol

TJP1

Additional Tight Junction Protein 1 Products

Product Documents for Tight Junction Protein 1 Antibody

Certificate of Analysis

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Product Specific Notices for Tight Junction Protein 1 Antibody

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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