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Location: Home > Antigen, Antibodies, ELISA, Western Blot > Primary Antibody > Monoclonal Antibodies > PI3-kinase (p85) Antibody (subunit alpha) (C-term)

PI3-kinase (p85) Antibody (subunit alpha) (C-term)

Catalog # Availability Size / Price Inquiry
APR09273G 100 μl / $545

PI3-kinase (p85) Antibody (subunit alpha) (C-term)

Brand

Leading Biology

Catalog Number

APR09273G

Product Type

Monoclonal Antibodies

Field of Research

Product Overview

We constantly strive to ensure we provide our customers with the best antibodies. As a result of this work we offer this antibody in purified format. We are in the process of updating our datasheets. If you have any questions regarding this update, please feel free to contact our technical support team. This product is a high quality PI3-kinase (p85) antibody (subunit alpha) (C-term).

Molecular Weight

83598 Da

Host

Rabbit

Species Reactivity

Human, Rat

Target

A synthetic peptide corresponding to residues in the C-term of human PI3-K 85 alpha was used as an immunogen.

Clone

EP380Y

Symbol

GRB1

GeneID

UniProt ID

Function

Binds to activated (phosphorylated) protein-Tyr kinases, through its SH2 domain, and acts as an adapter, mediating the association of the p110 catalytic unit to the plasma membrane. Necessary for the insulin-stimulated increase in glucose uptake and glycogen synthesis in insulin-sensitive tissues. Plays an important role in signaling in response to FGFR1, FGFR2, FGFR3, FGFR4, KITLG/SCF, KIT, PDGFRA and PDGFRB. Likewise, plays a role in ITGB2 signaling (PubMed:17626883, PubMed:19805105, PubMed:7518429). Modulates the cellular response to ER stress by promoting 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 (PubMed:20348923).

Summary

PI3-Kinases (PI3-Ks) are a family of lipid kinases that are implicated in signal transduction. PI3-K consists of two subunits; the regulatory subunit p85 and the catalytic subunit p110 (1-2). In quiescent cells p85 maintains p110 in a low activity state. Upon growth factor stimulation, p85 directly interacts with phosphotyrosine residues of activated growth factor receptors or adaptor proteins leading to activation of p110. p85 exists in two isoforms: p85 , including two short forms termed p50 and p55/AS53 and p85 including short form p55 PIK/p55 (3). The p85 adaptor protein uses the inter-SH2 (iSH2) region to bind p110 and employs SH3 and SH2 domains, phosphotyrosine residues, and proline-rich motifs to interact with activated tyrosine kinases such as BCR/ABL and NPM/ALK or adaptor proteins including Shc, c-Cbl, Crk-L, and Gab2 (4-5).

Form

50 mM Tris-Glycine (pH 7.4), 0.15 M NaCl, 40% Glycerol, 0.01% sodium azide and 0.05% BSA.

Storage & Stability

Store at +4°C short term. For long-term storage, aliquot and store at -20°C or below. Stable for 12 months at -20°C. Avoid repeated freeze-thaw cycles.

Applications

WB, IHC, IF

Dilution

WB~~1:2000 IHC~~1:100~250

Synonyms

Phosphatidylinositol 3-kinase regulatory subunit alpha, PI3-kinase regulatory subunit alpha, PI3K regulatory subunit alpha, PtdIns-3-kinase regulatory subunit alpha, Phosphatidylinositol 3-kinase 85 kDa regulatory subunit alpha, PI3-kinase subunit p85-alpha, PtdIns-3-kinase regulatory subunit p85-alpha, PIK3R1, GRB1

Images

A. Western blot analysis of anti- PI3-K p85 subunit alpha RabMAb (Cat. APR09273G), dilution 1:2,000. A: A431 B: MCF-7 C: Raji

B. Immunohistochemical analysis of paraffin-embedded human breast carcinoma using anti-PI3-K p85 subunit alpha RabMAb (Cat. APR09273G).

C. Immunofluorescent staining of HeLa cells using anti- PI3-K p85 subunit alpha RabMAb (Cat. APR09273G).

Specification

Quantity

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