| Field | Specification |
|---|---|
| Target | |
| Alternative names | Alpha-actinin-3;Alpha-actinin skeletal muscle isoform 3;F-actin cross-linking protein;ACTN3; |
| UniProt # | |
| Host | |
| Clonality | |
| Isotype | |
| Reactivity | |
| Applications | |
| Immunogen | A synthetic peptide corresponding to a sequence at the C-terminus of human ACTN3, different from the related mouse sequence by five amino acids. |
| Molecular weight | |
| Purification | |
| Reconstitution | |
| Cellular localization | |
| Concentration | |
| Form | Lyophilized |
| Storage | |
| Catalog no. (Mfr.) | |
| Main SKU |
Product Overview
This rabbit polyclonal antibody detects alpha-actinin-3 (gene ACTN3) in human, mouse and rat samples and is validated for flow cytometry, ICC/IF, IHC and Western blot. The predicted molecular weight is 103.2 kDa, and the supplier reports an observed band at about 103 kDa.
Alpha-actinin-3 (ACTN3) is an actin cross-linking protein found at the Z-discs of fast-twitch skeletal muscle fibers. A common nonsense variant (R577X) leaves many people without ACTN3, which has made it a well-known gene in studies of muscle performance.
| Target | Alpha-actinin-3 (gene ACTN3; UniProt Q08043, human) |
|---|---|
| Host / Clonality / Isotype | Rabbit / Polyclonal / Rabbit IgG |
| Reactivity | Human, Mouse, Rat |
| Form | Lyophilized |
| Formulation | Per vial: 0.9 mg NaCl; 0.2 mg Na2HPO4; 0.05 mg NaN3; plus stabilizers |
| Calculated MW | 103.2 kDa |
| Observed MW | 103 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 (Human, Mouse, Rat) |
|---|---|
| IHC (paraffin sections) | 0.5–1 µg/mL (Human, Mouse, Rat) |
| Immunocytochemistry / Immunofluorescence | 5 µg/mL (Mouse) |
| Flow cytometry (fixed cells) | 1–3 µg/1×106 cells (Human) |
Samples with a confirmed band (WB): human HT1080 cells, rat skeletal muscle tissue, mouse skeletal muscle tissue.
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, 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): mouse skeletal muscle tissue, rat skeletal muscle tissue, human lung 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 citrate buffer (pH 6).
Samples with confirmed staining (ICC/IF): mouse skeletal muscle.
Samples with a confirmed signal (flow cytometry): WISH cells.
Immunogen
Synthetic peptide from the C-terminal region of human ACTN3. It differs from the mouse sequence at five residues.
Reactivity Notes
The supplier lists reactivity with human, mouse and rat. Tissue expression noted by UniProt (human): Expression restricted to fast (type 2) skeletal muscle fibers (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.
Murgia Marta et al. (2021) Protein profile of fiber types in human skeletal muscle: a single-fiber proteomics study. Skeletal Muscle. 10.1186/s13395-021-00279-0
Li Wang et al. (2016) Human induced pluripotent stem cell-derived cardiac tissue on a thin collagen membrane with natural microstructures. Biomaterials Science. 10.1039/C6BM00522E
