| Field | Specification |
|---|---|
| Mfr No | |
| Alternative Names | Tight junction protein ZO-1; Tight junction protein 1; Zona occludens protein 1; Zonula occludens protein 1; TJP1; ZO1 |
| Cellular Localization | |
| Clonality | |
| Gene ID | |
| Host | |
| Immunogen | E.coli-derived human TJP1 recombinant protein (Position: H1178-F1527). Human TJP1 shares 82% amino acid (aa) sequence identity with mouse TJP1. |
| Isotype | |
| Molecular Weight | |
| Product Type | |
| Reactivity | |
| Reconstitution | |
| Target | |
| UniProt # |
Overview
Anti-TJP1 Antibody Picoband® (monoclonal, 3E12) is an antibody for TJP1 detection raised in Mouse (Monoclonal, clone Clone: 3E12, Mouse IgG1), with reported reactivity: Human. Commonly used in WB, IHC, IF, ICC, Flow Cytometry, ELISA workflows.
Key elements and design rationale
- Target: TJP1 (tight junction protein 1); UniProt: Q07157; NCBI Gene: 7082
- Antibody format: Mouse, Monoclonal, clone Clone: 3E12, Mouse IgG1
- Molecular weight: 220 kDa
- Applications: WB, IHC, IF, ICC, Flow Cytometry, ELISA
Vendor description (summary): Boster Bio Anti-TJP1 Antibody Picoband® (monoclonal, 3E12) catalog # M00860.
Biological background
Biological context: TJP1, TJP2, and TJP3 are closely related scaffolding proteins that link tight junction (TJ) transmembrane proteins such as claudins, junctional adhesion molecules, and occludin to the actin cytoskeleton (PubMed:7798316, PubMed:9792688). The tight junction acts to limit movement of substances through the paracellular space and as a boundary between the compositionally distinct apical and basolateral plasma membrane domains of epithelial and endothelial cells. Necessary for lumenogenesis, and particularly efficient epithelial polarization and barrier formation (By similarity). Plays a role in the regulation of cell migration by targeting CDC42BPB to the leading edge of migrating cells (PubMed:21240187). Plays an important role in podosome formation and associated function, thus regulating cell adhesion and matrix remodeling (PubMed:20930113). With TJP2 and TJP3, participates to the junctional retention and stability of the transcription factor DBPA, but is not involved in its shuttling to the nucleus (By similarity).
Expression and localization notes: cellular localization: Cell membrane; Peripheral membrane protein; Cytoplasmic side; tight junction; Cell junction; gap junction; podosome, tissue context: The alpha-containing isoform is found in most epithelial cell junctions. The short isoform is found both in endothelial cells and the highly specialized epithelial junctions of renal glomeruli and Sertoli cells of the seminiferous tubules..
Common research applications
- Western blotting (WB): Compare TJP1 levels across samples and conditions using appropriate loading and biological controls.
- Immunohistochemistry (IHC): Evaluate spatial distribution of TJP1 in tissue sections, considering fixation and antigen retrieval effects.
- Immunofluorescence / ICC: Assess subcellular localization patterns and co-localization with compartment markers in cultured cells.
- Flow cytometry: Quantify TJP1-positive populations in single-cell suspensions with appropriate gating and controls.
- ELISA: Use antibody-based detection formats to assess antigen presence or binding in plate-based assays.
Notes for experimental interpretation
- Account for isoforms, post-translational modifications, and sample-specific processing that can shift apparent molecular weight or epitope accessibility.
- Use positive/negative biological controls where possible (e.g., known-expressing cells/tissues, knockdown/knockout models) and include appropriate secondary-only/isotype controls for imaging workflows.
Additional product notes (from provided fields)
- Specificity: No cross reactivity with other proteins.
- Background: Gamma-interferon-inducible protein Ifi-16 (Ifi-16) also known as interferon-inducible myeloid differentiation transcriptional activator is a protein that in humans is encoded by the IFI16 gene. This gene encodes a member of the HIN-200 (hematopoietic interferon-inducible nuclear antigens with 200 amino acid repeats) family of cytokines. The encoded protein contains domains involved in DNA binding, transcriptional regulation, and protein-protein interactions. The protein localizes to the nucleoplasm and nucleoli, and interacts with p53 and retinoblastoma-1. It modulates p53 function, and inhibits cell growth in the Ras/Raf signaling pathway. Alternatively spliced transcript variants encoding different isoforms have been found for this gene.
- Cross reactivity: No cross-reactivity with other proteins.
- Cellular localization: Cell membrane; Peripheral membrane protein; Cytoplasmic side; tight junction; Cell junction; gap junction; podosome
- Tissue details: The alpha-containing isoform is found in most epithelial cell junctions. The short isoform is found both in endothelial cells and the highly specialized epithelial junctions of renal glomeruli and Sertoli cells of the seminiferous tubules.
- Research category: Amino Acid Metabolism,Amino Acids,Cancer,Cell Biology,Metabolic Signaling Pathways,Metabolism,Nucleotide Metabolism,Pathways and Processes,Signal Transduction
Customization & Add-ons: Can’t find the antibody you need—or require a custom format for your assay? We can help you source the best match or support custom antibody solutions for diverse research needs, including species and isotype selection, conjugations and labeling (e.g., HRP/AP, biotin, fluorophores), purification grade options (Protein A/G, affinity purified), formulation preferences (buffer selection, carrier-free, glycerol-free), custom concentrations and aliquoting, low-endotoxin options for cell-based work, and application-focused QC/validation support (project dependent). Click Talk to a Scientist to submit a request, email us at support@biohippo.com, or explore our Research Services for additional support—our team will follow up with feasibility details and next steps.
