| Field | Specification |
|---|---|
| Target | |
| Alternative names | Signal transducer and activator of transcription 3;Acute-phase response factor;STAT3;APRF; |
| UniProt # | |
| Host | |
| Clone | |
| Clonality | |
| Isotype | |
| Reactivity | |
| Applications | |
| Immunogen | A synthesized peptide derived from human STAT3 |
| Molecular weight | |
| Purification | |
| Reconstitution | |
| Cellular localization | |
| Concentration | |
| Form | Liquid |
| Storage | |
| Catalog no. (Mfr.) | |
| Main SKU |
Product Overview
Clone CAB-19 is a rabbit monoclonal antibody that recognizes signal transducer and activator of transcription 3 (gene STAT3) in human, mouse and rat samples and is validated for Western blot, IHC and ICC/IF. The predicted molecular weight is 88.1 kDa, and the supplier reports an observed band at about 88 kDa.
STAT3 is a transcription factor activated mainly by IL-6-family cytokines through gp130 and JAK kinases, and also by growth factors and leptin. Phosphorylated STAT3 dimerizes, enters the nucleus and regulates genes for acute-phase responses, cell survival and proliferation. It shapes Th17 differentiation and is persistently active in many cancers, making it a major research target.
| Target | Signal transducer and activator of transcription 3 (gene STAT3; UniProt P40763, human) |
|---|---|
| Clone | CAB-19 |
| Host / Clonality / Isotype | Rabbit / Monoclonal / Rabbit IgG |
| Reactivity | Human, Mouse, Rat |
| Form | Liquid |
| Formulation | PBS (pH 7.4); 150 mM NaCl; 0.02% sodium azide; 50% glycerol; plus stabilizers |
| Calculated MW | 88.1 kDa |
| Observed MW | 88 kDa |
| Storage | Long term: −20 °C for up to 12 months. Frequent use: 4 °C for up to 1 month. Avoid repeated freeze–thaw cycles. |
Validated Applications
| Western blot | 1:1000–1:2000 |
|---|---|
| Immunohistochemistry | 1:50–1:200 |
| Immunocytochemistry / Immunofluorescence | 1:50–1:200 |
Samples with confirmed staining (IHC): human Hodgkin's lymphoma tissue, human astrocytoma tissue, rat brain tissue.
Recommended antigen retrieval: heat-mediated, in TE buffer (pH 9.0); citrate buffer (pH 6.0) can be used instead.
Samples with confirmed staining (ICC/IF): HeLa cells.
Immunogen
Synthetic peptide based on the sequence of human STAT3.
Reactivity Notes
The supplier lists reactivity with human, mouse and rat. UniProt places signal transducer and activator of transcription 3 in the cytoplasm and nucleus. Tissue expression noted by UniProt (human): Heart, brain, placenta, lung, liver, skeletal muscle, kidney and pancreas. 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.
