| Field | Specification |
|---|---|
| Mfr No | |
| Alternative Names | T-box transcription factor TBX21;T-box protein 21;T-cell-specific T-box transcription factor T-bet;Transcription factor TBLYM;TBX21;TBET, TBLYM; |
| Cellular Localization | |
| Clonality | |
| Concentration | |
| Gene ID | |
| Host | |
| Immunogen | A synthetic peptide corresponding to a sequence at the C-terminus of human T-bet, different from the related rat and mouse sequences by one amino acid. |
| Isotype | |
| Molecular Weight | |
| Product Type | |
| Reactivity | |
| Reconstitution | |
| Target | |
| UniProt # |
Overview
Anti-T-bet/Tbx21 Antibody Picoband® is an antibody targeting TBX21. Common applications include WB, IHC, Flow Cytometry, ELISA. Key specifications include host: Rabbit; clonality: Polyclonal; isotype: Rabbit IgG; reactivity: Human,Mouse,Rat; observed MW: 58-60 kDa; calculated MW: 58328 MW.
Boster Bio Anti-T-bet/Tbx21 Antibody catalog # PA1999. Tested in WB applications. This antibody reacts with Human, Mouse, Rat. The brand Picoband indicates this is a premium antibody that guarantees superior quality, high affinity, and strong signals with minimal background in Western blot applications. Only our best-performing antibodies are designated as Picoband, ensuring unmatched performance.
Key elements and design rationale
- Target: TBX21 — T-box transcription factor TBX21
- Antibody format: Host: Rabbit; Clonality: Polyclonal; Isotype: Rabbit IgG
- Species reactivity: Human,Mouse,Rat
- Molecular weight guidance: Observed: 58-60 kDa; Calculated: 58328 MW
Specificity note: No cross reactivity with other proteins.
Biological background
Protein function (datasheet): Transcription factor that controls the expression of the TH1 cytokine, interferon-gamma. Initiates TH1 lineage development from naive TH precursor cells both by activating TH1 genetic programs and by repressing the opposing TH2 programs.
Scientific background (datasheet): TBX21 (T-Box 21), also called TBET, is a protein that in humans is encoded by the TBX21 gene. This gene is a member of a phylogenetically conserved family of genes that share a common DNA-binding domain, the T-box. Zhang and Yang (2000) mapped the mouse Tbx21 gene to chromosome 11D in an area showing homology of synteny with human chromosome 17. Szabo et al. (2000) showed that TBX21 expression correlates with IFNG expression in Th1 and natural killer (NK) cells. Ectopic expression of TBX21 both transactivated the IFNG gene and induced endogenous IFNG production. Finotto et al. (2002) observed reduced expression of the T (H)1 transcription factor Tbet in T cells from airways of patients with asthma compared with that in T cells from airways of nonasthmatic patients, suggesting that loss of Tbet might be associated with asthma.
Cellular localization (datasheet): Nucleus.
Tissue details (datasheet): T-cell specific.
Sequence similarities (datasheet): Belongs to the class-V pyridoxal-phosphate-dependent aminotransferase family.
Research relevance and current trends
- Commonly studied in contexts related to Adaptive Immunity,B Cells,Developmental Families,Domain Families,Epigenetics and Nuclear Signaling,Hematopoietic Progenitors,Immunology,Non-CD,Stem Cells,Surface Molecules,T Cells,Transcription.
- Supports comparative expression analysis across conditions, genotypes, or treatments when paired with appropriate controls.
- Useful for confirming target presence and subcellular distribution using orthogonal readouts (e.g., microscopy vs. immunoblotting).
Common research applications
- Western blot (WB): Compare relative target abundance and apparent size/isoforms across samples; interpret bands in light of expected MW and potential PTMs.
- ELISA: Measure target abundance in compatible matrices using a standard-curve readout; ensure dilution linearity and appropriate controls.
- Immunohistochemistry (IHC): Assess tissue distribution and cell-type patterns; interpret staining with appropriate negative controls and antigen context.
- Flow cytometry: Quantify target-positive populations in single-cell suspensions; pair with viability and isotype/FMO controls conceptually.
Notes for experimental interpretation
- Consider isoforms, post-translational modifications, and processing that can shift apparent molecular weight or localization.
- Cross-reactivity (datasheet): No cross-reactivity with other proteins
- Use appropriate positive and negative controls (e.g., KO/KD, blocking peptide, or isotype controls) to support specificity interpretation.
As a polyclonal antibody, this reagent may recognize multiple epitopes on the target, which can improve detection robustness but may require careful specificity controls.
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.
