June 2017 cover
Structural analysis of the mycobacterial ESX-5 type VII secretion system. Image by Tobias Wüstefeld; cover design by Samantha Whitham.

Exit route
Single-particle analysis of cryo-electron microscopy structures elucidates the membrane complex of the mycobacterial ESX-5 type VII secretion system. This secretion pathway is used to deliver virulence factors from the bacterial cytoplasm into the host cell through a channel in the bacterial inner membrane.
Refers to "Structure of the mycobacterial ESX-5 type VII secretion system membrane complex by single-particle analysis" by Beckham et al.