首页> 外文会议>American Society for Mass Spectrometry Conference on Mass Spectrometry and Allied Topics >Phosphoproteomic Analysis of Drug-Resistant Gastric Cancer Cells: Running title - MRM-Based Quantitative Analysis of Phosphosignaling Proteins with Response to Anti-IGF1R Antibody Drug Treatment
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Phosphoproteomic Analysis of Drug-Resistant Gastric Cancer Cells: Running title - MRM-Based Quantitative Analysis of Phosphosignaling Proteins with Response to Anti-IGF1R Antibody Drug Treatment

机译:抗药性胃癌细胞的磷蛋白蛋白质分析:抗IGF1R抗体药物治疗抗IGF1R抗体药物治疗的磷酸术 - MRM的定量分析

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1. Mass analysis identified 1712 unique phosphorylated proteins and 6456 unique peptides in SNU216 and SNU216LR. (Protein FDR : 0.1%, Peptide FDR : 0.3%). 2. We analyzed the molecular mechanism of human cancer by Ingenuity analysis system by running our raw data through various different approaches. (Fig. 3). 3. We have identified 3 potential regulatory pathways using Ingenuity system. 4. With determined MRM transitions and retention times, the linear curves were constructed in the peptide concentration range of 0.5 - 250 fmol (R~2=0.9964). β-elimination demonstrated that the suitability of the dephosphorylated peptide for the MRM-based peptide quantification over intact phosphopeptide. (Fig. 4-5). 5. In future study, we plan to develop MRM-based phosphoprotein analysis workflow with the β-elimination chemistry and further validate the regulatory phosphosignaling proteins using this method.
机译:1.质量分析确定了1712个独特的磷酸化蛋白和Snu216和Snu216LR中的6456个独特的肽。 (蛋白质FDR:0.1%,肽FDR:0.3%)。通过通过各种不同的方法运行我们的原始数据,通过奔腾分析系统分析了人类癌症的分子机制。 (图3)。 3.我们已经确定了使用Ingenuity系统的3个潜在的调节途径。 4.具有测定的MRM转变和保留时间,在0.5-250fmol的肽浓度范围内构建线性曲线(R〜2 = 0.9964)。 β-消除表明,去磷酸化肽的适用性在完整的磷肽过度的基于MRM的肽定量。 (图4-5)。 5.在未来的研究中,我们计划利用β-消除化学开发基于MRM的磷酸蛋白分析工作流程,并使用该方法进一步验证调节磷酸盐蛋白质。

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