New manuscript: interorganelle lipid transport is rapid, & it is hard to quantify discrete steps in this network, mediated by lipid transfer proteins working at membrane contact sites between different organelles. We (Dongjun Liang & Lin Luan) harness chemoenzymatic tagging & super-fast #bioorthogonal chemistry to make fluorescent lipids that report on PM-to-ER phospholipid flux mediated by a family of lipid transfer proteins at these contact sites! https://doi.org/10.1101/2023.02.01.526230 #lipidtime #chembio