| Field | Specification |
|---|---|
| Target | |
| Alternative names | Transcription activator BRG1; TP-dependent helicase SMARCA4; BRG1-associated factor 190A; BAF190A; Mitotic growth and transcription activator; Protein BRG-1; Protein brahma homolog 1; SNF2-beta; SWI/SNF-related matrix-associated actin-dependent regulator of chromatin subfamily A member 4; SMARCA4; BAF190A; BRG1; SNF2B; SNF2L4 |
| UniProt # | |
| Host | |
| Clonality | |
| Isotype | |
| Reactivity | |
| Applications | |
| Immunogen | E. coli-derived human BRG1 recombinant protein (Position: Q555-E763). |
| Molecular weight | |
| Reconstitution | |
| Cellular localization | |
| Concentration | |
| Form | Lyophilized |
| Storage | |
| Catalog no. (Mfr.) | |
| Main SKU |
Product Overview
This rabbit polyclonal antibody detects SWI/SNF-related matrix-associated actin-dependent regulator of chromatin subfamily A member 4 (gene SMARCA4) in human, mouse and rat samples and is validated for ELISA, ICC/IF, IHC and Western blot. The predicted molecular weight is 184.6 kDa, and the supplier reports an observed band at about 220 kDa.
BRG1 (SMARCA4) is an ATPase subunit of the SWI/SNF (BAF) chromatin remodeling complexes, which use ATP energy to shift nucleosomes and control access to DNA. It regulates many developmental and tissue-specific genes, and is frequently mutated or lost in several cancers, including lung cancer and small cell carcinoma of the ovary, hypercalcemic type.
| Target | SWI/SNF-related matrix-associated actin-dependent regulator of chromatin subfamily A member 4 (gene SMARCA4; UniProt P51532, human) |
|---|---|
| Host / Clonality / Isotype | Rabbit / Polyclonal / Rabbit IgG |
| Reactivity | Human, Mouse, Rat |
| Form | Lyophilized |
| Formulation | Per vial: 4 mg trehalose; 0.9 mg NaCl; 0.2 mg Na2HPO4; 0.05 mg NaN3 |
| Calculated MW | 184.6 kDa |
| Observed MW | 220 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 | 0.1–0.5 µg/mL |
|---|---|
| IHC (paraffin sections) | 0.5–1 µg/mL |
| Immunocytochemistry / Immunofluorescence | 2 µg/mL |
| ELISA | 0.1–0.5 µg/mL |
Samples with a confirmed band (WB): human HEL cells, human MCF-7 cells, human PC-3 cells, human HeLa- WT cells, human Hela-SMARCA4 KO cells.
Recommended loading (WB): 20–40 µg of total protein per lane.
Conditions in the example images (WB): 8% SDS-PAGE under reducing conditions, 30 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 1:5000, ECL detection.
Samples with confirmed staining (IHC): human intestinal cancer tissue, mouse small intestine tissue, rat small intestine 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 citrate buffer (pH 6).
Samples with confirmed staining (ICC/IF): U2OS cells.
Immunogen
Recombinant human BRG1 fragment (Gln555–Glu763), expressed in E. coli.
Reactivity Notes
The supplier lists reactivity with human, mouse and rat. UniProt places SWI/SNF-related matrix-associated actin-dependent regulator of chromatin subfamily A member 4 in the nucleus. Tissue expression noted by UniProt (human): Colocalizes with ZEB1 in E-cadherin-negative cells from established lines, and stroma of normal colon as well as in de-differentiated epithelial cells at the invasion front of colorectal carcinomas (at protein level). 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.
