Is it a bird? Is it a plane? No: It’s my project on the cover of Nature Chemical Biology!
More will follow soon, for the time being I’ll quote the Journal:
“A single-molecule approach using magnetic tweezers shows that DNA strand separation alone can trigger a lock at Tus–Ter sites where oppositely moving replisomes on circular bacterial chromosomes must avoid crashing. The results support a ‘mousetrap’ model in which replication-related proteins are not necessary and strand separation is followed by an interaction between Tus and C6 of the Ter site that sets up a hierarchy of interactions to allow the Tus–Ter complex to progressively strengthen. Cover art by Erin Dewalt, based on an image provided by TU Delft/Tremani.”