| Field | Specification |
|---|---|
| Target | |
| Alternative names | Serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit alpha isoform; PP2A B subunit isoform B'-alpha; PP2A B subunit isoform B56-alpha; PP2A B subunit isoform PR61-alpha; PR61alpha; PP2A B subunit isoform R5-alpha; PPP2R5A |
| UniProt # | |
| Host | |
| Clonality | |
| Isotype | |
| Reactivity | |
| Applications | |
| Immunogen | E.coli-derived human PPP2R5A recombinant protein (Position: Q50-R441). |
| Molecular weight | |
| Purification | |
| Reconstitution | |
| Cellular localization | |
| Concentration | |
| Form | Lyophilized |
| Storage | |
| Catalog no. (Mfr.) | |
| Main SKU |
Product Overview
This rabbit polyclonal antibody detects serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit alpha isoform (gene PPP2R5A) in human samples and is validated for Western blot, ICC/IF and ELISA. The predicted molecular weight is 56.2 kDa, and the supplier reports an observed band at about 56 kDa.
PPP2R5A (B56α) is a B′-family regulatory subunit of protein phosphatase 2A. B56 subunits steer PP2A to particular substrates and cell locations, influencing its activity. B56α is studied in PP2A signaling, including regulation of MYC and cardiac function.
| Target | Serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit alpha isoform (gene PPP2R5A; UniProt Q15172, 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 |
| Calculated MW | 56.2 kDa |
| Observed MW | 56 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) |
|---|---|
| Immunocytochemistry / Immunofluorescence | 5 µg/mL (Human) |
| ELISA | 0.1–0.5 µg/mL |
Samples with a confirmed band (WB): human HeLa cells, human 293T cells, human SH-SY5Y 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, 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 (ICC/IF): A549 cells.
Immunogen
Recombinant human PPP2R5A fragment (Gln50–Arg441), expressed in E. coli.
Reactivity Notes
The supplier lists reactivity with human. UniProt places serine/threonine-protein phosphatase 2A 56 kDa regulatory subunit alpha isoform in the cytoplasm, nucleus and chromosome. Tissue expression noted by UniProt (human): Widely expressed with the highest expression in heart and skeletal muscle. 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.
Ji Qijian et al. (2025) Predictive and personalized approaches for idiopathic pulmonary fibrosis: a Wnt-related gene set scoring framework integrating single-cell sequencing, spatial transcriptomics, and machine learning for diagnosis and prognosis. Functional & Integrative Genomics. 10.1007/s10142-025-01571-8
