| Field | Specification |
|---|---|
| Target | |
| Alternative names | Phosphoinositide 3-kinase regulatory subunit 5; PI3-kinase regulatory subunit 5; PI3-kinase p101 subunit; Phosphatidylinositol 4,5-bisphosphate 3-kinase regulatory subunit; PtdIns-3-kinase regulatory subunit; Protein FOAP-2; PtdIns-3-kinase p101; p101-PI3K; PIK3R5 |
| UniProt # | |
| Host | |
| Clonality | |
| Isotype | |
| Reactivity | |
| Applications | |
| Immunogen | E.coli-derived human PIK3R5 recombinant protein (Position: E170-L864). Human PIK3R5 shares 83.9% amino acid (aa) sequence identity with mouse PIK3R5. |
| Molecular weight | |
| Purification | |
| Reconstitution | |
| Cellular localization | |
| Concentration | |
| Form | Lyophilized |
| Storage | |
| Catalog no. (Mfr.) | |
| Main SKU |
Product Overview
This rabbit polyclonal antibody recognizes phosphoinositide 3-kinase regulatory subunit 5 (gene PIK3R5) in human, mouse and rat samples and is validated for Western blot, flow cytometry and ELISA. The predicted molecular weight is 97.3 kDa, and the supplier reports an observed band at about 97 kDa.
PIK3R5 (p101) is a regulatory subunit of the PI3Kγ complex. It links the catalytic subunit p110γ to Gβγ dimers released by activated G protein-coupled receptors, allowing membrane recruitment and activation in leukocytes during chemotaxis and inflammation.
| Target | Phosphoinositide 3-kinase regulatory subunit 5 (gene PIK3R5; UniProt Q8WYR1, human) |
|---|---|
| Host / Clonality / Isotype | Rabbit / Polyclonal / IgG |
| Reactivity | Human, Mouse, Rat |
| Form | Lyophilized |
| Formulation | Per vial: 4 mg trehalose; 0.9 mg NaCl; 0.2 mg Na2HPO4 |
| Calculated MW | 97.3 kDa |
| Observed MW | 97 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, Mouse, Rat) |
|---|---|
| Flow cytometry (fixed cells) | 1–3 µg/1×106 cells (Human) |
| ELISA | 0.1–0.5 µg/mL |
Samples with a confirmed band (WB): human Jurkat cells, human K562 cells, rat C6 cells, mouse brain tissue, mouse Neuro-2a cells 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 a confirmed signal (flow cytometry): Jurkat cells.
Immunogen
Recombinant human PIK3R5 fragment (Glu170–Leu864), expressed in E. coli. Sequence identity with the mouse ortholog: 83.9%.
Reactivity Notes
The supplier lists reactivity with human, mouse and rat. UniProt places phosphoinositide 3-kinase regulatory subunit 5 in the nucleus, cytoplasm and cell membrane. Tissue expression noted by UniProt (human): Ubiquitously expressed with high expression in fetal brain compared to adult brain. 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.
