SRP0233

PI3 kinase (p110a/p85a) Active human

recombinant, expressed in baculovirus infected insect cells, ≥80% (SDS-PAGE)

• 別名: PI3-kinase regulatory subunit 4, PIK3R4, Phosphoinositide 3-kinase adaptor protein, VPS15, PIK3CA, Phosphoinositide-3-kinase, catalytic, alpha, PtdIns-3-kinase p110
• UNSPSCコード: 12352200
• NACRES: NA.32

特性

• 由来生物: human
• リコンビナント: expressed in baculovirus infected insect cells
• アッセイ: ≥80% (SDS-PAGE)
• 形状: aqueous solution
• 比活性: ≥13 pmol/min-μg
• 分子量: 129 kDa (p110α); 88 kDa (p85α)
• 包装: pkg of 20 μg
• メーカー／製品名: Sigma-Aldrich
• 濃度: >0.02 mg/mL
• テクニック: activity assay: suitable
• NCBIアクセッション番号: U79143 (p110alpha); XM_043865 (p85alpha)
• UniProtアクセッション番号: P42336
• アプリケーション: life science and biopharma
• 輸送温度: dry ice
• 保管温度: −70°C
• 遺伝子情報: human ... PIK3CA(5290)

詳細

詳細

Research area: Cell Signaling

PIK3CA (phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit a) is one of the four subunits of the 110kDa catalytic subunit of PI3K protein, which contains a regulatory region of 85kDa. PI3K proteins form a family of lipid kinases. This gene is localized to human chromosome 3q.Three different classes of PI3Ks (I – III) have been discovered.

アプリケーション

PI3 kinase (p110a/p85a) Active human has been used for the study of enzyme kinetics, screening inhibitors, and selectivity profiling.

生物化学的／生理学的作用

PIK3CA (phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit a) is one of the four catalytic subunits of PI3K protein, which plays an essential role in extracellular growth signaling. It phosphorylates and activates protein kinase B (PKB) protein. This protein has a wide range of physiological functions, such as proliferation, cell cycle, survival, adhesion, motility, apoptosis, angiogenesis, DNA repair, senescence, and cellular metabolism, and plays a central role in multiple types of cancers. It also functions as an intermediary in cellular signaling and is primarily recognized for its involvement in the Phosphoinositide 3-kinase/ Protein kinase B/ mammalian target of rapamycin (PI3K/AKT/mTOR) signaling pathway. PIK3CA gene is either mutated or amplified in brain, breast, stomach, liver, ovary, and colon cancers. Mutation in this gene leads to enhanced PI3K activity, and it is a candidate transforming oncogene. It is over-expressed in invasive breast cancer and is a marker for poor prognosis. This gene is amplified in high-grade dysplastic lesions from bronchial biopsy specimens obtained from preinvasive squamous lung cancer. Frequency of mutations in the PIK3CA gene is higher in tumors without lymph node metastasis than in those with gastric cancer. Thus, it might be essential to evaluate the mutations in this gene to determine cetuximab treatment in gastric cancer patients.

単位の定義

110a/p85aキナーゼ活性の1ユニットは、37°Cで1分あたり1 pmolのホスホイノシトール-3,4,5-三リン酸の生成に必要な酵素量と定義されています。

物理的形状

Formulated in 25 mM Tris-HCl, pH 8.0, 100 mM NaCl, 0.05% Tween-20, 30% glycerol and 3 mM DTT.

調製ノート

氷上で解凍してください。最初に解凍した際、チューブを軽く遠心して内容物を完全に回収してください。酵素液は一回の使用量ずつ分注してください。分注した酵素液は希釈せずそのまま-70°Cで保存してください。注:酵素は凍結融解の繰り返しに対して非常に不安定です。

安全性情報

• 保管分類コード: 10 - Combustible liquids
• WGK: WGK 1