- 询价
- Cell Signaling Technology
- 4228
- USA
- 2025年12月10日
- W, IP
- Rabbit
- M,H,R,Mk,B
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- 详细信息
- 文献和实验
- 技术资料
- 抗体英文名：
Phospho-PI3 Kinase p85 (Tyr458)/p55 (Tyr199) Antibody
- 抗原：
synthetic phosphopeptide corresponding to residues surrounding Tyr458 of mouse p85
- 应用范围：
W, IP
- 宿主：
Rabbit
- 级别：
详见MSDS文件
- 库存：
大量
- 适应物种：
M,H,R,Mk,B
- 保质期：
详见说明书
- 供应商：
CST
- 是否单克隆：
2
- 保存条件：
-20°c
- 规格：
40 ul (4 western blots)/100 ul (10 western blots)/300 ul (30 western blots)/carrier free & custom formulation / quantity
| 规格： | 产品价格： | ￥请询价 | |
|---|---|---|---|
| 规格： | 40 ul (4 western blots) | 产品价格： | ￥请询价 |
| 规格： | 100 ul (10 western blots) | 产品价格： | ￥请询价 |
| 规格： | 300 ul (30 western blots) | 产品价格： | ￥请询价 |
| 规格： | carrier free & custom formulation / quantity | 产品价格： | ￥请询价 |
pathway more info application references datasheet PDF MSDS PDF protocols
Applications Key: W=Western Blotting IP=Immunoprecipitation
Reactivity Key: H=Human M=Mouse R=Rat Mk=Monkey B=Bovine
Species cross-reactivity is determined by western blot. Species enclosed in parentheses are predicted to react based on 100% sequence homology.
| Applications | Reactivity | Sensitivity | MW (kDa) | Source |
|---|---|---|---|---|
| W IP | M (H) (R) (Mk) (B) | Endogenous | 60 and 85 | Rabbit |
| Protocols |
|
|---|---|
| Specificity / Sensitivity | Phospho-PI3 Kinase p85 (Tyr458)/p55 (Tyr199) Antibody detects endogenous levels of p85/p55 only when phosphorylated at Tyr458/Tyr199. |
| Source / Purification | Polyclonal antibodies are produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Tyr458 of mouse p85. Antibodies are purified by protein A and peptide affinity chromatography. Western Blotting
Western blot analysis of extracts from NIH/3T3-Src cells, untreated or treated with lambda phosphatase and from C2C12 cells, untreated or treated with H2O2, using Phospho-PI3 Kinase p85 (Tyr458)/p55 (Tyr199) Antibody. |
| Background | Phosphoinositide 3-kinase (PI3K) catalyzes the production of phosphatidylinositol-3,4,5-triphosphate by phosphorylating phosphatidylinositol (PI), phosphatidylinositol-4-phosphate (PIP) and phosphatidylinositol-4,5-bisphosphate (PIP2). Growth factors and hormones trigger this phosphorylation event, which in turn coordinates cell growth, cell cycle entry, cell migration, and cell survival (1). PTEN reverses this process, and the PI3K signaling pathway is constitutively activated in human cancers that have loss of function of PTEN (2). PI3Ks are composed of a catalytic subunit (p110) and a regulatory subunit. Various isoforms of the catalytic subunit (p110α, p110β, p110γ, and p110δ) have been isolated, and the regulatory subunits that associate with p110α, p110β, and p110δ are p85α and p85β (3). In contrast, p110γ associates with a p101 regulatory subunit that is unrelated to p85. Furthermore, p110γ is activated by βγ subunits of heterotrimeric G proteins (4). Protein extracts from 3T3-Src cells were profiled by PhosphoScan® to identify phosphotyrosine peptides. Tyr458 of PI3K p85 and Tyr199 of PI3K p55 were among 180 phosphopeptides and 185 phosphotyrosine sites identified (5). |
| Application References |
Have you published research involving the use of our products? If so we'd love to hear about it. Please let us know ! |
| Companion Products |
For Research Use Only. Not For Use In Diagnostic Procedures. |
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文献和实验signaling公司的Phospho-PI3K p85 (Tyr458)/p55(Tyr199) 我自己分析没有条带无非是细胞状态不好，或者抗体不好，不知道还有没有可能是没有加磷酸化酶抑制剂，以至于磷酸化的蛋白被去磷酸化了？ 谢谢啦～ yhwangcams 检测内参蛋白如GAPDH,ACTIN,TUBULIN是否成功？ 用PLB裂解细胞得到的蛋白适合做REPORTER，做WESTERN不太合适。建议可以用其他BUFFER裂解蛋白。
Using Phospho‐Motif Antibodies to Determine Kinase Substrates
comprising both the phosphorylated residue and the surrounding residues that determine kinase specificity, with degenerate residues taking up the remaining positions. Currently, several categories of phospho?motif antibody are commercially available
运用Cell Based Elisa检测信号通路蛋白和磷酸化蛋白
using Phospho-p38 antibody (A) and Total-p38 antibody (B). Cell Based Elisa were performed directly in the 96-well plates using Phospho-p38 and Total-p38 antibodies (C). Figure 3: JNK detection with FACECells were serum-starved for 16 hours
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