Virus-host competition drives evolution of diverse antiviral defences in bacteria and antidefense systems in their viruses (phages). Here, Silas et al. use a functional screen of phage accessory genes to show how bacterial cell-surface sugars can be major determinants of phage host-range, and how some phage proteins injected into bacterial cells inhibit host immunity.
- Sukrit Silas
- Héloïse Carion
- Joseph Bondy-Denomy