Abcam, ab278545, Anti- PI 3 Kinase p85 alpha (phospho Y467) + PI3 Kinase p55 (phospho Y199) antibody [PI3KY458-1A11]

Size: 20µL / 100µL
Anti-PI 3 Kinase p85 alpha (phospho Y467) + PI3 Kinase p55 (phospho Y199) antibody [PI3KY458-1A11] (ab278545) is a rabbit monoclonal antibody detecting PI 3 Kinase p85 alpha in Western Blot, Flow Cytometry . Suitable for Human, Mouse . - Recombinant format for unrivalled batch-batch consistency - Over 50 publications
Key facts
Host species:Rabbit,
Clonality:Monoclonal,
Clone number:PI3KY458-1A11,
Isotype:IgG,
Light chain type:kappa,
Carrier free:No,
Reacts with:Mouse, Human,
Applications:Flow Cyt, WBSee reactivity dataSee the reactivity data table below for information on validated species and application combinations.,
Immunogen:Synthetic Peptide within Human PIK3R1 phospho Y467. The exact immunogen used to generate this antibody is proprietary information.P27986,
Specificity:Recent data suggests this antibody can recognize PI 3 Kinase p85 and p55.

Product details:
What is this antibody validated in?
Anti- PI 3 Kinase p85 alpha (phospho Y467) + PI3 Kinase p55 (phospho Y199) antibody [PI3KY458-1A11] (ab278545) is a rabbit recombinant monoclonal antibody and is validated for use in Western Blot (WB), Flow Cytometry (Flow Cyt) in Human, Mouse samples.
What is the molecular weight of PI 3 Kinase p85 alpha?
Anti- PI 3 Kinase p85 alpha (phospho Y467) + PI3 Kinase p55 (phospho Y199) [PI3KY458-1A11] (ab278545) specifically detects a band for PI 3 Kinase p85 alpha (UniProt: Q92569) at a molecular weight of 84kDa.
Trusted by the scientific community
Anti- PI 3 Kinase p85 alpha (phospho Y467) + PI3 Kinase p55 (phospho Y199) [PI3KY458-1A11] (ab278545) was first used in a scientific publication in 2021 and has been cited over 50 times in peer-reviewed journals.
Trial sizes available!
Test your antibody or perform pre-screening before committing to a larger quantity. Sold in 20µl.
Discover our selection of trial-size antibodies
Other related products
We have a range of other formats of antibody clone [PI3KY458-1A11] also available for your convenience: ab278545, PE -
ab278691
, FITC -
ab278692
, APC -
ab278733
What are the advantages of a recombinant monoclonal antibody?
This product is a recombinant monoclonal antibody, which offers several advantages including:
- High batch-to-batch consistency and reproducibility
- Improved sensitivity and specificity
- Long-term security of supply
- Animal-free batch production
For more information, read more on
recombinant antibodies

Properties and Storage Information:
Form-Liquid, Purification technique-Affinity purification Protein A/G, Storage buffer-Preservative: 0.02% Sodium azideConstituents: PBS, 50% Glycerol (glycerin, glycerine), 0.1% BSA, Shipped at conditions-Blue Ice, Appropriate short-term storage duration-1-2 weeks, Appropriate short-term storage conditions-+4°C, Appropriate long-term storage conditions--20°C, Aliquoting information-Upon delivery aliquot, Storage information-Avoid freeze / thaw cycle

Supplementary Information:
This supplementary information is collated from multiple sources and compiled automatically.
The PI 3 Kinase p85 alpha also known as PI3K p85 or PI3-kinase p85 is a regulatory subunit part of the phosphoinositide 3-kinases (PI3Ks) complex which is integral to cellular functions. The p85 alpha form partners with the catalytic subunit to form PI3K p55 known for its significant role in signaling. This subunit exhibits a molecular weight of approximately 85 kDa. It shows expression in various tissues including liver muscle and brain where it aids in cellular communication responding to extracellular signals.
Biological function summary
PI 3 Kinase p85 alpha plays an essential role in intracellular signaling where it functions as part of the PI3K complex. It functions to regulate metabolic processes by interacting with phosphatidylinositol lipids in the cell membrane. PI3K p55 form contributes to cell growth survival and proliferation often collaborating with the catalytic subunit p110 to execute these functions. The phospho PI3K form becomes active upon receiving external growth factors facilitating downstream signaling.
Pathways
The involvement of PI 3 Kinase p85 alpha extends to critical cellular pathways like the PI3K/AKT pathway and the insulin signaling pathway. It engages with proteins such as AKT (protein kinase B) and IRS-1 linking to various cellular functions including metabolism protein synthesis and cellular proliferation. The activity of PI3K p55 form regulates these pathways by influencing enzyme activity and pathways associated with cell survival and apoptosis.
Dysregulation of PI 3 Kinase p85 alpha associates closely with cancers and metabolic disorders like type 2 diabetes. Aberrations in the p55 form link to tumorigenesis due to its role in uncontrolled cell proliferation. PI3K pathway disorders also relate to insulin resistance where the malfunction of PI3K components disrupts normal glucose uptake and insulin signaling. This target when interacting with proteins like PTEN further influences the development of cancer highlighting its critical role in both oncogenic and metabolic pathologies.