Mechanosensitive channels of the MscS family are found in all kingdoms of life and protect bacteria against osmotic shock. Böttcher et al. provide the first structural insights into a larger family member, YnaI. Despite YnaI having additional transmembrane helices, important features are conserved, suggesting a common mechanism.
Böttcher, B., Prazak, V., Rasmussen, A., Black, S. S., & Rasmussen, T. (2015). The Structure of YnaI Implies Structural and Mechanistic Conservation in the MscS Family of Mechanosensitive Channels. Structure, 23(9), 1705–1714. https://doi.org/10.1016/j.str.2015.06.023