Recombinant Human PI 3-Kinase p55 gamma GST (N-Term) Protein

Name: Recombinant Human PI 3-Kinase p55 gamma GST (N-Term) Protein
Brand: Novus Biologicals
SKU: H00008503-P01

Novus Biologicals, part of Bio-Techne | Catalog # H00008503-P01

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Product Specifications
Scientific Data
Preparation & Storage
Background
Product Documents
Specific Notices

Key Product Details

Source

Wheat germ

Tag

GST (N-Term)

Conjugate

Unconjugated

Applications

ELISA, Affinity Purification, Microarray, Western Blot

View all PI 3-Kinase p55 gamma Proteins and Enzymes »

Product Specifications

Description

A recombinant protein with GST tag at N-terminal corresponding to the amino acids 1-461 of Human PIK3R3

Source: Wheat Germ (in vitro)

Amino Acid Sequence: MYNTVWSMDRDDADWREVMMPYSTELIFYIEMDPPALPPKPPKPMTSAVPNGMKDSSVSLQDAEWYWGDISREEVNDKLRDMPDGTFLVRDASTKMQGDYTLTLRKGGNNKLIKIYHRDGKYGFSDPLTFNSVVELINHYHHESLAQYNPKLDVKLMYPVSRYQQDQLVKEDNIDAVGKKLQEYHSQYQEKSKEYDRLYEEYTRTSQEIQMKRTAIEAFNETIKIFEEQCHTQEQHSKEYIERFRREGNEKEIERIMMNYDKLKSRLGEIHDSKMRLEQDLKNQALDNREIDKKMNSIKPDLIQLRKIRDQHLVWLNHKGVRQKRLNVWLGIKNEDAAENYFINEEDENLPHYDEKTWFVEDINRVQAEDLLYGKPDGAFLIRESSKKGCYACSVVADGEVKHCVIYSTARGYGFAEPYNLYSSLKELVLHYQQTSLVQHNDSLNVRLAYPVHAQMPSLCR

Purity

>80% by SDS-PAGE and Coomassie blue staining

Predicted Molecular Mass

80.8 kDa.
Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors.

Activity

This protein was produced in an in vitro wheat germ expression system that should preserve correct conformational folding that is necessary for biological function. While it is possible that this protein could display some level of activity, the functionality of this protein has not been explicitly measured or validated.

Protein / Peptide Type

Recombinant Protein

Scientific Data Images for Recombinant Human PI 3-Kinase p55 gamma GST (N-Term) Protein

12.5% SDS-PAGE Stained with Coomassie Blue.

Formulation, Preparation and Storage

H00008503-P01

Preparation Method	in vitro wheat germ expression system
Formulation	50 mM Tris-HCl, 10 mM reduced Glutathione, pH 8.0 in the elution buffer.
Preservative	No Preservative
Concentration	Please see the vial label for concentration. If unlisted please contact technical services.
Shipping	The product is shipped with dry ice or equivalent. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage	Store at -80C. Avoid freeze-thaw cycles.

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

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Product Specific Notices for Recombinant Human PI 3-Kinase p55 gamma GST (N-Term) Protein

This product is produced by and distributed for Abnova, a company based in Taiwan.

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

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