The great escape: a Shigella effector unlocks the septin cage.

Shigella, an important human pathogen, can secrete effector proteins to invade host cells and evade mechanisms of cell-autonomous immunity. In a new manuscript published in Nature Communications, Xian et al. report that the Shigella kinase effector OspG promotes the ubiquitination of septin cytoskeletal proteins to evade cage entrapment.