半岛bd体育手机客户端 说明
应用
4-Hexylphenylazosulfonate (Azo) is a photocleavable anionic surfactant developed by the Ge lab for use in high-throughput top-down and bottom-up proteomics by mass spectrometry (MS). Initially, the reagent showed a breakthrough as an improved method for top-down analysis [Brown et al. 2019]. Top-down analysis looks at intact proteins, while bottom-up analysis uses digested proteins. Of the two, top-down analysis is preferable for detecting post-translational modifications and sequence variations. Bottom-up is more commonly used and is likely to detect more proteins. This reagent was also shown to work for sample extraction that can be used for both top-down and bottom-up analysis on the same sample to maximize data collection[Brown et al. 2020].
Surfactants are required for protein extraction especially for challenging classes of protein including membrane proteins[Brown et al. 2020] and extracellular matrix proteins[Knott et al. 2020], but surfactants suppress the signal in MS. While removing a surfactant will improve the signal, this can cause protein loss and degradation. Azo allows for easy removal since it can be rapidly degraded using ultraviolet irradiation (λmax= 305 nm). Using Azo in this way reduces protein loss and gives an improved signal. Please see the Ge lab publications for information on using this product [Brown et al. 2019, Brown et al. 2020, Knott et al. 2020, and Aballo et al. 2021].
法律信息
PCT/US2019/035447
基本信息
经验(实验)分子式 | C12H17N2O3S · Na |
分子量 | 292.33 |
半岛bd体育手机客户端 性质
质量水平 | 100 |
测定 | ≥95% |
形式 | liquid |
折射率 | n
|
密度 | 0.994 g/mL |
储存温度 | 2-8℃ |
安全信息
储存分类代码 | 10 - Combustible liquids |
WGK | WGK 2 |
Sigma-Aldrich