Tight Junction Protein 1 Antibody

Immunocytochemistry/Immunofluorescence: Tight Junction Protein 1 Antibody [NBP2-99094] - Immunofluorescence staining of Tight Junction Protein 1 in U2OS cells. Cells were fixed with 4% PFA, permeabilzed with 0.3% Triton X-100 in PBS, blocked with 10% serum, and incubated with rabbit anti- Tight Junction Protein 1 polyclonal antibody (dilution ratio 1:1000) at 4C overnight. Then cells were stained with the Alexa Fluor(R)488-conjugated Goat Anti-rabbit IgG secondary antibody (green) and counterstained with DAPI (blue). Positive staining was localized to cytoplasm.

Product Discontinued

Tight Junction Protein 1 Antibody Summary

• Description: This antibody can be stored at 2C to 8C for one month without detectable loss of activity. Antibody products are stable for twelve months from date of receipt when stored at -20C to -80C. Avoid repeated freeze-thaw cycles.
• Immunogen: Produced in rabbits immunized with a synthetic peptide corresponding to the center region of the Human Tight Junction Protein 1.
• Predicted Species: Mouse (100%). Backed by our 100% Guarantee.
• Isotype: IgG
• Clonality: Polyclonal
• Host: Rabbit
• Gene: TJP1
• Purity: Antigen Affinity-purified

Applications/Dilutions

• Dilutions:
  • Immunocytochemistry/ Immunofluorescence
  • Immunohistochemistry
  • Immunohistochemistry-Paraffin

Packaging, Storage & Formulations

• Storage: Store at 4C short term. Aliquot and store at -20C long term. Avoid freeze-thaw cycles.
• Buffer: 0.2 um filtered solution in PBS
• Preservative: No Preservative
• Purity: Antigen Affinity-purified

Alternate Names for Tight Junction Protein 1 Antibody

• DKFZp686M05161
• MGC133289
• tight junction protein 1 (zona occludens 1)
• Tight junction protein 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

Background

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.

Limitations

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.

Bioinformatics

• Gene Symbol: TJP1