- 询价
- Cell Signaling Technology
- 9121
- USA
- 2025年12月26日
- W, IP
- Rabbit
- H,M,R,Mk,Sc,C
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- 详细信息
- 文献和实验
- 技术资料
- 抗体英文名：
Phospho-MEK1/2 (Ser217/221) Antibody
- 抗原：
synthetic phosphopeptide corresponding to residues around Ser217/221 of human MEK1/2
- 应用范围：
W, IP
- 宿主：
Rabbit
- 适应物种：
H,M,R,Mk,Sc,C
- 级别：
详见MSDS文件
- 供应商：
CST
- 保质期：
详见说明书
- 库存：
大量
- 是否单克隆：
2
- 保存条件：
-20°c
- 规格：
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： | 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 C=Chicken Sc=S. cerevisiae
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 | H M R Mk Sc (C) | Endogenous | 45 | Rabbit |
| Protocols |
|
|---|---|
| Specificity / Sensitivity | Phospho-MEK1/2 (Ser217/221) Antibody detects endogenous levels of MEK1/2 only when activated by phosphorylation at Ser217/221. This antibody does not cross-react with related kinases including activated SEK (MKK4), MKK3 or MKK6. It will also react with MEK1/2 singly phosphorylated at Ser217 and singly phosphorylated at Ser221. |
| Source / Purification | Polyclonal antibodies are produced by immunizing animals with a synthetic phosphopeptide corresponding to residues around Ser217/221 of human MEK1/2. Antibodies are purified by protein A and peptide affinity chromatography. Western Blotting
Western blot analysis of extracts from untreated, TPA-treated or lambda phosphatase-treated HeLa cells, using Phospho-MEK 1/2 (Ser217/221) Antibody #9121 (upper) or MEK 1/2 Antibody #9122 (lower). |
| Background | MEK1 and MEK2, also called MAPK or Erk kinases, are dual-specificity protein kinases that function in a mitogen activated protein kinase cascade controlling cell growth and differentiation (1-3). Activation of MEK1 and MEK2 occurs through phosphorylation of two serine residues at positions 217 and 221, located in the activation loop of subdomain VIII, by Raf-like molecules. MEK1/2 is activated by a wide variety of growth factors and cytokines and also by membrane depolarization and calcium influx (1-4). Constitutively active forms of MEK1/2 are sufficient for the transformation of NIH/3T3 cells or the differentiation of PC-12 cells (4). MEK activates p44 and p42 MAP kinase by phosphorylating both threonine and tyrosine residues at sites located within the activation loop of kinase subdomain VIII. CST's Phospho- MEK1/2 (Ser217/221) Antibody selectively recognizes active MEK, i.e., only when phosphorylated at Ser217/221, and hence is an excellent marker of MEK1/2 activity. |
| 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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文献和实验下调不能说明活性降低，因为决定GSK3-beta的活性的还与其磷酸化的比例和磷酸化的位点有关。所以你除了要做GSK3-beta总的蛋白表达之外，还要做磷酸化的GSK3-beta的蛋白表达。 （2）应该活性形式和非活性形式都做。一般来讲，GSK3-beta在Ser9位点磷酸化之后活性收到抑制，而在216位点磷酸化之后，其活性收到加强。因此建议将GSK3-beta的两个磷酸化位点都做了，另外还要同时检测GSK3-beta的总蛋白表达，这样才能全面的说明问题。
secondary antibody review -- data from 99 publications
cytometry used as a control to detect cell responses targeted antigen 7 Alexa Fluor 488 7 Cy3 8 goat IgG Alexa Fluor 488 1:2000 detect antibody binding in human embryonic kidney 293T cells Invitrogen 9 donkey
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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