Antibiotics that inhibit ribosomes lead to collisions on mRNAs when upstream ribosomes catch up with stalled ones. Campbell et al. show that the HrpA protein in E. coli senses ribosome collisions and removes the stalled ribosome, helping cells survive in…

Here, the authors use cryo-electron microscopy to structurally characterise the Ebola virus nucleocapsid within virus-like particles, uncovering how specific interactions regulate viral genome synthes...