PI3K Antibody (p85 beta)

Phosphatidylinositol 3-kinase regulatory subunit 2, also called p85-Beta, PIK3R2 and PIK3, is an enzyme that in humans is encoded by the PIK3R2 gene. The NS1 protein from various influenza strains bind p85-beta, but not p85-alpha. Binding of p85-beta and activation of PI3K required tyr89 of NS1, and mutant viruses expressing NS1 with a tyr89-to-phe substitution grew more slowly in cell culture than wildtype viruses. Using mouse embryonic fibroblasts, Park et al. showed that, in addition to regulating PI3K function, p85-alpha/beta regulated the function of Xbp1s, a transcription factor that orchestrates the unfolded protein response (UPR) following endoplasmic reticulum (ER) stress. Overexpression of the protein in livers of ob/ob mice increased glucose tolerance and reduced blood glucose concentrations.

Product Specifications

CAS Number

9007-83-4

Specifications

Western blot: 0.5-1 µg/mL, IHC (FFPE) : 0.5-1 µg/mL

UniProt

O00459

Host

Rabbit

Reactivity

Human, Mouse, Rat

Immunogen

Amino acids 447-461 (KVYHQQYQDKSREYD-beta specific) was used as the immunogen for this PI3K antibody (100% human, mouse and rat homology) .

Clonality

Polyclonal

Isotype

IgG

Applications

WB, IHC-P

Purity

Antigen affinity

Format

Antigen affinity purified

Buffer

Lyophilized from 1X PBS with 2.5% BSA and 0.025% sodium azide/thimerosal

Reconstitution

After reconstitution, the PI3K antibody can be stored for up to one month at 4oC. For long-term, aliquot and store at -20oC. Avoid repeated freezing and thawing.

Limitations

This PI3K antibody is available for research use only.

Storage Conditions

After reconstitution, the PI3K antibody can be stored for up to one month at 4°C. For long-term, aliquot and store at -20°C. Avoid repeated freezing and thawing.

Formulation

0.5 mg/mL if reconstituted with 0.2ml sterile DI water

Applications Notes

The stated application concentrations are suggested starting points. Titration of the PI3K antibody may be required due to differences in protocols and secondary/substrate sensitivity.