Overview

  • Product name

    Anti-PI 3 Kinase p85 beta antibody
    See all PI 3 Kinase p85 beta primary antibodies
  • Description

    Rabbit polyclonal to PI 3 Kinase p85 beta
  • Host species

    Rabbit
  • Tested applications

    Suitable for: WB, IHC-Pmore details
  • Species reactivity

    Reacts with: Mouse, Rat, Human
  • Immunogen

    Synthetic peptide corresponding to Human PI 3 Kinase p85 beta aa 447-461 (internal sequence).
    Sequence:

    KVYHQQYQDKSREYD

  • Positive control

    • WB: Rat testis tissue lysate and HeLa and 293T whole cell lysates. IHC-P: Human mammary cancer tissue.

Properties

  • Form

    Liquid
  • Storage instructions

    Shipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C long term. Avoid freeze / thaw cycle.
  • Storage buffer

    Preservatives: 0.025% Thimerosal (merthiolate), 0.025% Sodium azide
    Constituents: 2.5% BSA, 0.1% Dibasic monohydrogen sodium phosphate, 0.45% Sodium chloride
  • Concentration information loading...
  • Purity

    Immunogen affinity purified
  • Clonality

    Polyclonal
  • Isotype

    IgG
  • Research areas

Applications

Our Abpromise guarantee covers the use of ab131067 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
WB Use a concentration of 0.1 - 0.5 µg/ml. Detects a band of approximately 81 kDa (predicted molecular weight: 81 kDa).
IHC-P Use a concentration of 0.5 - 1 µg/ml. Perform heat mediated antigen retrieval before commencing with IHC staining protocol.

Target

  • Function

    Regulatory subunit of phosphoinositide-3-kinase (PI3K), a kinase that phosphorylates PtdIns(4,5)P2 (Phosphatidylinositol 4,5-bisphosphate) to generate phosphatidylinositol 3,4,5-trisphosphate (PIP3). PIP3 plays a key role by recruiting PH domain-containing proteins to the membrane, including AKT1 and PDPK1, activating signaling cascades involved in cell growth, survival, proliferation, motility and morphology. Binds to activated (phosphorylated) protein-tyrosine kinases, through its SH2 domain, and acts as an adapter, mediating the association of the p110 catalytic unit to the plasma membrane. Indirectly regulates autophagy (PubMed:23604317). Promotes nuclear translocation of XBP1 isoform 2 in a ER stress- and/or insulin-dependent manner during metabolic overloading in the liver and hence plays a role in glucose tolerance improvement.
  • Involvement in disease

    Megalencephaly-polymicrogyria-polydactyly-hydrocephalus syndrome 1
  • Sequence similarities

    Belongs to the PI3K p85 subunit family.
    Contains 1 Rho-GAP domain.
    Contains 2 SH2 domains.
    Contains 1 SH3 domain.
  • Domain

    The SH2 2 domain is required for interaction with FBXL2 and PTPN13.
  • Post-translational
    modifications

    Phosphorylated in response to signaling from activated receptor-type protein kinases (PubMed:19690332, PubMed:20068231). Dephosphorylated by PTPRJ (PubMed:18348712). Dephosphorylated at Tyr-655 by PTPN13. Phosphorylation of Tyr-655 impairs while its dephosphorylation promotes interaction with FBXL2 and SCF(FBXL2)-mediated polyubiquitination (PubMed:23604317).
    Ubiquitinated. Polyubiquitination by the SCF(FBXL2) complex probably promotes proteasomal degradation of PIK3R2.
  • Information by UniProt
  • Database links

  • Alternative names

    • p85 antibody
    • p85 beta antibody
    • P85B antibody
    • P85B_HUMAN antibody
    • Phosphatidylinositol 3 kinase antibody
    • Phosphatidylinositol 3 kinase regulatory beta subunit antibody
    • Phosphatidylinositol 3 kinase regulatory subunit beta antibody
    • Phosphatidylinositol 3 kinase regulatory subunit polypeptide 2 antibody
    • Phosphatidylinositol 3 kinase, regulatory subunit, polypeptide 2 (p85 beta) antibody
    • Phosphatidylinositol 3-kinase 85 kDa regulatory subunit beta antibody
    • Phosphatidylinositol 3-kinase regulatory subunit beta antibody
    • Phosphoinositide 3 kinase regulatory subunit 2 (beta) antibody
    • Phosphoinositide 3 kinase regulatory subunit 2 antibody
    • Phosphoinositide 3 kinase regulatory subunit polypeptide 2 (p85 beta) antibody
    • Phosphoinositide 3 kinase regulatory subunit polypeptide 2 antibody
    • Phosphoinositide 3 kinase, regulatory subunit 2 (beta) antibody
    • Phosphoinositide 3 kinase, regulatory subunit 2 (p85 beta) antibody
    • PI3 kinase p85 beta subunit antibody
    • PI3 kinase p85 subunit beta antibody
    • PI3-kinase regulatory subunit beta antibody
    • PI3-kinase subunit p85-beta antibody
    • PI3K antibody
    • PI3K regulatory subunit beta antibody
    • PIK3R 2 antibody
    • PIK3R2 antibody
    • PtdIns 3 kinase p85 beta antibody
    • PtdIns-3-kinase regulatory subunit beta antibody
    • PtdIns-3-kinase regulatory subunit p85-beta antibody
    see all

Images

  • All lanes : Anti-PI 3 Kinase p85 beta antibody (ab131067) at 0.5 µg/ml

    Lane 1 : Rat testis tissue lysate at 50 µg
    Lane 2 : 293T whole cell lysate at 40 µg
    Lane 3 : HeLa whole cell lysate at 40 µg

    Predicted band size: 81 kDa
    Observed band size: 81 kDa

  • Immunohistochemical analysis of paraffin embedded Human Mammary Cancer Tissue labelled with ab131067 PI 3 Kinase p85 beta antibody at 1 µg/ml.
  • All lanes : Anti-PI 3 Kinase p85 beta antibody (ab131067) at 0.5 µg/ml

    Lane 1 : mouse liver tissue lysates
    Lane 2 : mouse brain tissue lysates

    Lysates/proteins at 50 µg per lane.

    Secondary
    All lanes : goat anti-rabbit IgG-HRP at 1/10000 dilution

    Predicted band size: 81 kDa

References

This product has been referenced in:

  • Jia Z  et al. miR-126 suppresses epithelial-to-mesenchymal transition and metastasis by targeting PI3K/AKT/Snail signaling of lung cancer cells. Oncol Lett 15:7369-7375 (2018). Read more (PubMed: 29725450) »
  • Song L  et al. MicroRNA-126 inhibits proliferation and metastasis by targeting pik3r2 in prostate cancer. Mol Med Rep 13:1204-10 (2016). Read more (PubMed: 26677064) »
See all 3 Publications for this product

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