Global Mapping of Protein-Lipid Interactions by Using Modified Choline-Containing Phospholipids Metabolically Synthesized in Live Cells
作者:Danyang Wang、Shubo Du、Amaury Cazenave-Gassiot、Jingyan Ge、Jun-Seok Lee、Markus R. Wenk、Shao Q. Yao
DOI:10.1002/anie.201702509
日期:2017.5.15
diazirine‐modified fatty acid simultaneously into choline‐containing phospholipids synthesized from live mammalian cells, protein–phospholipid interactions have been successfully imaged in live cells. Subsequent in situ profiling of the modified Cho phospholipid‐crosslinked proteins followed by quantitative proteomics allowed identification of several hundred putative phospholipid‐interacting proteins
蛋白质-脂质相互作用是介导细胞信号传导和功能的重要代谢过程。蛋白质-脂质相互作用的大规模作图研究的现有策略在与代谢掺入不兼容或无法去除脂化蛋白质的有害干扰方面尚不足。通过将含有炔烃的胆碱首基和重氮嗪改性的脂肪酸同时掺入由活哺乳动物细胞合成的含胆碱的磷脂中,已成功地在活细胞中成像了蛋白质-磷脂相互作用。随后对修饰的Cho磷脂交联蛋白进行原位分析,然后进行定量蛋白质组学分析,从而鉴定出了数百种可能与磷脂相互作用的蛋白,其中一些蛋白还得到了进一步验证。