| Field | Specification |
|---|---|
| Target | |
| Alternative names | Trans-acting T-cell-specific transcription factor GATA-3; GATA-binding factor 3; GATA3 |
| UniProt # | |
| Host | |
| Clonality | |
| Isotype | |
| Reactivity | |
| Applications | |
| Immunogen | A synthetic peptide corresponding to a sequence at the N-terminus of human GATA3, which shares 86.4% and 90.9% amino acid (aa) sequence identity with mouse and rat GATA3, respectively. |
| Molecular weight | |
| Purification | |
| Reconstitution | |
| Cellular localization | |
| Concentration | |
| Form | Lyophilized |
| Storage | |
| Catalog no. (Mfr.) | |
| Main SKU |
Product Overview
This rabbit polyclonal antibody recognizes trans-acting T-cell-specific transcription factor GATA-3 (gene GATA3) in human samples and is validated for Western blot, IHC, ICC/IF and flow cytometry. The predicted molecular weight is 47.9 kDa, and the supplier reports an observed band at about 50 kDa.
GATA3 is a zinc-finger transcription factor best known as the master regulator of T helper 2 (Th2) cell differentiation and a key factor for T-cell development. It also controls development of the kidney, inner ear and mammary gland, and it is widely used as a marker of luminal breast and urothelial carcinomas.
| Target | Trans-acting T-cell-specific transcription factor GATA-3 (gene GATA3; UniProt P23771, human) |
|---|---|
| Host / Clonality / Isotype | Rabbit / Polyclonal / Rabbit IgG |
| Reactivity | Human |
| Form | Lyophilized |
| Formulation | Per vial: 4 mg trehalose; 0.9 mg NaCl; 0.2 mg Na2HPO4; 0.01 mg NaN3 |
| Calculated MW | 47.9 kDa |
| Observed MW | 50 kDa |
| Storage | As supplied: −20 °C for up to 12 months from receipt. After reconstitution: 4 °C for up to 1 month, or aliquot and keep at −20 °C for up to 6 months. Avoid repeated freeze–thaw cycles. |
Validated Applications
| Western blot | 0.25–0.5 µg/mL (Human) |
|---|---|
| IHC (paraffin sections) | 0.5–1 µg/mL (Human) |
| Immunocytochemistry / Immunofluorescence | 4 µg/mL (Human) |
| Flow cytometry (fixed cells) | 1–3 µg/1×106 cells (Human) |
Samples with a confirmed band (WB): human Jurkat cells.
Recommended loading (WB): 20–40 µg of total protein per lane.
Conditions in the example images (WB): 5–20% gradient SDS-PAGE under reducing conditions, 50 µg lysate per lane, transfer to nitrocellulose membrane, blocking in 5% non-fat milk, primary antibody at 0.5 µg/mL overnight at 4 °C, HRP-conjugated secondary antibody at 1:10000, ECL detection.
Samples with confirmed staining (IHC): human mammary cancer tissue.
Recommended antigen retrieval: heat-mediated, in TE buffer (pH 9.0); citrate buffer (pH 6.0) can be used instead.
Conditions in the example images (IHC): heat-mediated antigen retrieval in EDTA buffer (pH 8.0).
Samples with confirmed staining (ICC/IF): HeLa cells.
Samples with a confirmed signal (flow cytometry): 293T cells.
Immunogen
Synthetic peptide from the N-terminal region of human GATA3. Sequence identity with the mouse and rat orthologs: 86.4% and 90.9%, respectively.
Reactivity Notes
The supplier lists reactivity with human. UniProt places trans-acting T-cell-specific transcription factor GATA-3 in the nucleus. Tissue expression noted by UniProt (human): T-cells and endothelial cells. The samples tested by the supplier (listed above) are a practical starting point for positive controls.
Safety
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.
Geng Xiangrong et al. (2024) GATA-3 Dependent Gene Transcription is Impaired upon HDAC Inhibition. Clinical Cancer Research. 10.1158/1078-0432.CCR-23-1699
