IP-MS(Immunoprecipitation-Mass Spectrometry)是目前主流的进行蛋白质相互作用/ 后修饰高通量筛选的技术方案。即将免疫沉淀(Immunoprecipitation)介导的蛋白质互作复合物富集和质谱检测结合,实现对靶标互作蛋白的鉴定与筛选。
SILAC-IP-MS:是将SILAC (Stable Isotope Labeling with Amino acids in Cell culture) 细胞标记和IP-MS 结合,利用SILAC 标记在细胞蛋白质上引入的质量标签(masstag),借助质谱实现对蛋白质的相对定量,去除非特异性蛋白,快速锁定特异性互作蛋白,极大地提高后续IP-WB 验证的阳性成功率。
与SILAC-IP-MS 相比,IP-MS 只能定性,无法从背景蛋白中区分特异性相互作用。因此,客户选择IP-MS方案,后续的潜在互作蛋白须自行筛选。
*谱璟科技SILAC-IP-MS技术平台*
技术流程:
谱璟科技服务流程及质控标准:
SILAC-IP-MS技术应用场景及特点:
服务咨询及注意事项:
普通的IP-MS无法获得定量信息,如客户选择该方案,潜在的候选互作蛋白须自行挑选。
如需了解更多信息,可预约进行在线数据分享交流。预约请发送邮件至:market@imultiomics.com。
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项目DEMO数据及分析:
成功案例:
Batool A, Liu H, Liu Y-X, Chen S-R: CD83, a Novel MAPK Signaling Pathway Interactor, Determines Ovarian Cancer Cell Fate. Cancers 2020, 12(8):2269.
Gao Y, Liu S, Guo Q, Zhang S, Zhao Y, Wang H, Li T, Gong Y, Wang Y, Zhang T et al: Increased expression of TRIP13 drives the tumorigenesis of bladder cancer in association with the EGFR signaling pathway. International Journal of Biological Sciences 2019, 15(7):1488-1499.
Yu W, Tang L, Lin F, Yao Y, Shen Z: DGKZ Acts as a Potential Oncogene in Osteosarcoma Proliferation Through Its Possible Interaction With ERK1/2 and MYC Pathway. Frontiers in Oncology 2019, 8(655).
Zhang X, Gao D, Fang K, Guo Z, Li L: Med19 is targeted by miR-101–3p/miR-422a and promotes breast cancer progression by regulating the EGFR/MEK/ERK signaling pathway. Cancer Letters 2019, 444:105-115.
Sun Y, Bao Q, Xuan B, Xu W, Pan D, Li Q, Qian Z, Jung JU: Human Cytomegalovirus Protein pUL38 Prevents Premature Cell Death by Binding to Ubiquitin-Specific Protease 24 and Regulating Iron Metabolism. Journal of Virology 2018, 92(13):e00191-00118.
Sun T, Du W, Xiong H, Yu Y, Weng Y, Ren L, Zhao H, Wang Y, Chen Y, Xu J et al: TMEFF2 Deregulation Contributes to Gastric Carcinogenesis and Indicates Poor Survival Outcome. Clinical Cancer Research 2014, 20(17):4689-4704.