Tight Junction Protein 1 Antibody

Novus Biologicals | Catalog # NBP1-49669

Novus Biologicals
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Key Product Details

Species Reactivity

Validated:

Human, Mouse, Canine

Cited:

Human, Mouse

Applications

Validated:

Immunohistochemistry, Immunohistochemistry-Paraffin, Immunohistochemistry-Frozen, Western Blot, Immunocytochemistry/ Immunofluorescence

Cited:

Immunohistochemistry-Paraffin

Label

Unconjugated

Antibody Source

Polyclonal Guinea Pig IgG
View all Tight Junction Protein 1 Primary Antibodies »

Product Specifications

Immunogen

The polyclonal antibody is raised against a human peptide antigen corresponding to ten residues at the splice junction and as such recognizes specifically ZO-1 alpha-minus.

Reactivity Notes

Mouse reactivity reported in scientific literature (PMID: 23871805).

Marker

Intercellular Junctions/Tight Junction Marker

Specificity

The polyclonal antibody is raised against a human peptide antigen corresponding to ten residues at the splice junction and as such recognizes specifically ZO-1 alpha-minus.

Clonality

Polyclonal

Host

Guinea Pig

Isotype

IgG

Applications for Tight Junction Protein 1 Antibody

Application
Recommended Usage

Immunocytochemistry/ Immunofluorescence

1:10-1:500

Immunohistochemistry

1:10-1:500

Immunohistochemistry-Frozen

1:10-1:500

Immunohistochemistry-Paraffin

1:10-1:500

Western Blot

1:100-1:2000
Application Notes
For immunohistology, immunofluorescence and Western blotting, 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.

Formulation, Preparation, and Storage

Purification

Immunogen affinity purified

Formulation

PBS, containing 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.

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

Entrez Gene IDs

7082 (Human)

Gene Symbol

TJP1

UniProt

Q07157 (Human)

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.

Citations for Tight Junction Protein 1 Antibody

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Protocols

Find general support by application which include: protocols, troubleshooting, illustrated assays, videos and webinars.

FAQs for Tight Junction Protein 1 Antibody

Showing  1 - 3 of 3 FAQs Showing All

  • Q: The data sheet for the ZO-1 tight junction antibody (NBP1-49669) states to store at 4C. Would it be okay to aliquot and store at -20C or -80C (or perhaps better)? This is an affinity purified antibody in PBS containing 0.1% BSA and 0.02% Sodium Azide, so I would suspect this might be better.

    A: The recommended storage conditions for this antibody are 4C. Under recommended storage conditions, this product is considered stable for at least one year and carries a guarantee for 6 months. Our experience with this antibody is for long term storage at 4C. I would not recommend freezing this antibody. Some antibodies can be very sensitive to freezing and will loose their reactivity if you do so.

  • Q: We tested both NBP1-49669 and R-079-100 by WB, but failed to obtain signal. May we ask your suggestion for positive control? We found NBL1-17341 may be an option for R-079-100, but is there any other lysate which can be suggested and is easier to get?

    A: In our catalog, NBP2-10877 as well as NBP2-05057 are the products that are suggested as lysates for ZO-1 tight junction protein antibody (NBP1-49669). You already know NBL1-17341 may be an option for VRL1 Antibody (R-079-100). I do not see any other products in our collection that will go along ZO-1 tight junction protein antibody (NBP1-49669) and VRL1 antibody (R-079-100).

  • Q: Would you please help confirm if this ZO-1 tight junction protein antibody (cat. no. NBP1-49669) is suitable for ICC?

    A: Yes, this antibody has been validated to be useful in Immunocytochemistry/Immunofluorescence.

  • Q: The data sheet for the ZO-1 tight junction antibody (NBP1-49669) states to store at 4C. Would it be okay to aliquot and store at -20C or -80C (or perhaps better)? This is an affinity purified antibody in PBS containing 0.1% BSA and 0.02% Sodium Azide, so I would suspect this might be better.

    A: The recommended storage conditions for this antibody are 4C. Under recommended storage conditions, this product is considered stable for at least one year and carries a guarantee for 6 months. Our experience with this antibody is for long term storage at 4C. I would not recommend freezing this antibody. Some antibodies can be very sensitive to freezing and will loose their reactivity if you do so.

  • Q: We tested both NBP1-49669 and R-079-100 by WB, but failed to obtain signal. May we ask your suggestion for positive control? We found NBL1-17341 may be an option for R-079-100, but is there any other lysate which can be suggested and is easier to get?

    A: In our catalog, NBP2-10877 as well as NBP2-05057 are the products that are suggested as lysates for ZO-1 tight junction protein antibody (NBP1-49669). You already know NBL1-17341 may be an option for VRL1 Antibody (R-079-100). I do not see any other products in our collection that will go along ZO-1 tight junction protein antibody (NBP1-49669) and VRL1 antibody (R-079-100).

  • Q: Would you please help confirm if this ZO-1 tight junction protein antibody (cat. no. NBP1-49669) is suitable for ICC?

    A: Yes, this antibody has been validated to be useful in Immunocytochemistry/Immunofluorescence.

  • Q: The data sheet for the ZO-1 tight junction antibody (NBP1-49669) states to store at 4C. Would it be okay to aliquot and store at -20C or -80C (or perhaps better)? This is an affinity purified antibody in PBS containing 0.1% BSA and 0.02% Sodium Azide, so I would suspect this might be better.

    A: The recommended storage conditions for this antibody are 4C. Under recommended storage conditions, this product is considered stable for at least one year and carries a guarantee for 6 months. Our experience with this antibody is for long term storage at 4C. I would not recommend freezing this antibody. Some antibodies can be very sensitive to freezing and will loose their reactivity if you do so.

  • Q: We tested both NBP1-49669 and R-079-100 by WB, but failed to obtain signal. May we ask your suggestion for positive control? We found NBL1-17341 may be an option for R-079-100, but is there any other lysate which can be suggested and is easier to get?

    A: In our catalog, NBP2-10877 as well as NBP2-05057 are the products that are suggested as lysates for ZO-1 tight junction protein antibody (NBP1-49669). You already know NBL1-17341 may be an option for VRL1 Antibody (R-079-100). I do not see any other products in our collection that will go along ZO-1 tight junction protein antibody (NBP1-49669) and VRL1 antibody (R-079-100).

  • Q: Would you please help confirm if this ZO-1 tight junction protein antibody (cat. no. NBP1-49669) is suitable for ICC?

    A: Yes, this antibody has been validated to be useful in Immunocytochemistry/Immunofluorescence.

Showing  1 - 3 of 3 FAQs Showing All
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