Key Product Details

Species Reactivity

Human, Mouse, Rat

Applications

Western Blot

Label

Janelia Fluor 525

Antibody Source

Monoclonal Mouse IgG2B Clone # 668619

Concentration

Please see the vial label for concentration. If unlisted please contact technical services.

View all PI 3-Kinase p55 gamma Antibodies »

Product Specifications

Immunogen

E. coli-derived recombinant human p55 gamma
Lys251-Gly378
Accession # Q92569

Specificity

Detects human, mouse, and rat PI 3‑Kinase p55 gamma in Western blots. In direct ELISAs, less than 10% cross-reactivity with recombinant human (rh) PIK3R1 (aa 519‑644) and no cross-reactivity with rhPIK3R1 (aa 328-431), rhPIK3R2 (aa 325-428), rhPIK3R2 (aa 516-642), rhPIK3C3 (aa 419‑887), rhPIK3R4 (aa 58-230), or rhPIK3R5 (aa 530-726) is observed.

Clonality

Monoclonal

Host

Mouse

Isotype

IgG2B

Applications for PI 3-Kinase p55 gamma Antibody (668619) [Janelia Fluor® 525]

Application
Recommended Usage

Western Blot

Optimal dilutions of this antibody should be experimentally determined.
Application Notes
Optimal dilution of this antibody should be experimentally determined.

Formulation, Preparation, and Storage

Purification

Protein A or G purified from hybridoma culture supernatant

Formulation

50mM Sodium Borate

Preservative

0.05% Sodium Azide

Concentration

Please see the vial label for concentration. If unlisted please contact technical services.

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Store at 4C in the dark.

Background: PI 3-Kinase p55 gamma

PI 3-Kinase p55 gamma, also referred to as PI3Kp55 gamma or p55gamma, is a regulatory subunit of phosphatidylinositol 3-kinase (PI 3-Kinase / PI3K) (1). Class 1A PI 3-Kinases are heterodimers consisting of one 110 kDa catalytic subunit (p110 alpha, beta, or delta) and one regulatory subunit (p85 alpha, p85 beta, p55 alpha, p50 alpha, or p55 gamma) (1). The p55 gamma regulatory subunit is encoded by the PIK3R3 gene and is predominantly expressed in the brain (2). Human PI 3 Kinase p55 gamma protein is 461 amino acids (aa) in length with a theoretical molecular weight of ~54 kDa (3). Structurally, PI 3-Kinase p55 gamma contains a proline rich domain (aa 34 - 44) and two Src homology domains (SH2, aa 65 - 160 and 358 - 452) (1,3). In general, Class 1A PI 3-Kinases are activated through the binding of membrane-bound tyrosine kinase receptors, such as insulin-like growth factor 1 (IGF-1) (1,2,4). Activation of PI 3-Kinase results in the phosphorylation of phosphatidyl inositol and a downstream signaling cascade of the AKT/mTOR pathway (2,4). PI 3-Kinase pathway activation results in a number of cellular responses including proliferation, survival, growth, migration, membrane trafficking, and metabolism (2). The PI3-Kinase/AKT/mTOR pathway has been shown to be dysregulated in a number of cancers, largely through loss or inactivation of the tumor suppressor PTEN (4). Furthermore, one study found that anaplastic lymphoma kinase (ALK) promoted cell migration during brain development specifically through the p55 gamma regulatory subunit of PI 3-Kinase (5).

References

1. Backer J. M. (2010). The regulation of class IA PI 3-kinases by inter-subunit interactions. Current Topics in Microbiology and Immunology. https://doi.org/10.1007/82_2010_52

2. Hirsch, E., Costa, C., & Ciraolo, E. (2007). Phosphoinositide 3-kinases as a common platform for multi-hormone signaling. The Journal of Endocrinology. https://doi.org/10.1677/JOE-07-0097

3. Uniprot (Q92569)

4. Yang, J., Nie, J., Ma, X., Wei, Y., Peng, Y., & Wei, X. (2019). Targeting PI3K in cancer: mechanisms and advances in clinical trials. Molecular Cancer. https://doi.org/10.1186/s12943-019-0954-x

5. Seo, M., Kim, J. H., & Suk, K. (2017). Role of the p55-gamma subunit of PI3K in ALK-induced cell migration: RNAi-based selection of cell migration regulators. Cell Adhesion & Migration. https://doi.org/10.1080/19336918.2016.1202385

Long Name

PI 3-Kinase p55 gamma

Alternate Names

p55PIK, PI 3Kinase p55 gamma, PIK3R3

Gene Symbol

PIK3R3

Additional PI 3-Kinase p55 gamma Products

Product Documents for PI 3-Kinase p55 gamma Antibody (668619) [Janelia Fluor® 525]

Product Datasheets

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

Download SDS

Product Specific Notices for PI 3-Kinase p55 gamma Antibody (668619) [Janelia Fluor® 525]



Sold under license from the Howard Hughes Medical Institute, Janelia Research Campus.

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

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