Coming of Age: Cryo-Electron Tomography as a Versatile Tool to Generate High-Resolution Structures at Cellular/Biological Interfaces

Over the last few years, cryo electron microscopy has become the most important methodin structural biology. While 80% of deposited maps are from single particle analysis, electrontomography has grown to become the second most important method. In particular sub-tomogramaveraging has matured as a method, delivering structures between 2 and 5 Å from complexes in cellsas well as in vitro complexes. While this resolution range is not standard, novel developments pointtoward a promising future. Here, we provide a guide for the workflow from sample to structure togain insight into this emerging field.QC 20211110