Synthesis and Cellular Labeling of Multifunctional Phosphatidylinositol Bis‐ and Trisphosphate Derivatives
作者:Rainer Müller、Ana Kojic、Mevlut Citir、Carsten Schultz
DOI:10.1002/anie.202103599
日期:2021.9
We synthesized the first multifunctionalized phosphoinositide polyphosphate derivatives featuring a photo-removable protecting group (“cage”), a photo-crosslinkable diazirine group, and a terminal alkyne group useful for click chemistry. We demonstrate that the lipid derivatives readily enter cells. After photo-crosslinking, cell fixation and fluorescent tagging via click chemistry, we determined the
我们合成了第一个多功能化的磷酸肌醇多磷酸衍生物,具有可光去除的保护基团(“笼”)、可光交联的二氮丙啶基团和可用于点击化学的末端炔基。我们证明脂质衍生物很容易进入细胞。经过光交联、细胞固定和通过点击化学进行荧光标记后,我们确定了脂质释放前后脂质衍生物的细胞内位置。我们发现 PI(3,4)P 2和 PI(3,4,5)P 3衍生物快速转运至质膜,开启了这些脂质参与主动转运的有趣可能性。我们利用光交联和点击化学功能来分析PI(3,4,5)P 3结合蛋白的蛋白质组。从后者,我们通过 RNAi 验证了假定的脂质结合蛋白 ATP11A 和 MPP6 参与 PI(3,4,5)P 3向质膜的转运。