ArticleNature communications2025
Lipid interactions and gating hysteresis suggest a physiological role for mechanosensitive channel YnaI.
Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
What it found
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Who cites it
6 citing papers in PubMed.
- The diverse gating mechanisms of bacterial MscS-like ion channels.Biochemical Society transactions · 2026Review
- The MscS channel frombioRxiv : the preprint server for biology · 2026Article
- The bacterial mechanosensitive channel MscM gates through concerted changes in its transmembrane and cytoplasmic domains.Nature communications · 2026Article
- Hysteretic Conductance in Ion Channel Gating.Entropy (Basel, Switzerland) · 2026Review
- Venous Nanoflap Oscillations: Biomechanical Determinants and Hydrodynamic Consequences in the Deep Cerebral Venous System.International journal of molecular sciences · 2026Review
- MscM uses a novel gating mechanism for bacterial mechanosensitive channels.bioRxiv : the preprint server for biology · 2026Article
Corrections and comments
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Authors and funding
8 authors.
Funding
Abstract
YnaI is a member of the family of bacterial MscS (mechanosensitive channel of small conductance)-like channels. Channel gating upon hypoosmotic stress and the role of lipids in this process have been extensively studied for MscS, but are less well understood for YnaI, which features two additional transmembrane helices. Here, we combined cryogenic electron microscopy, molecular dynamics simulations and patch-clamp electrophysiology to advance our understanding of YnaI. The two additional helices move the lipid-filled hydrophobic pockets in YnaI further away from the lipid bilayer and change the function of the pocket lipids from being a critical gating element in MscS to being more of a structural element in YnaI. Unlike MscS, YnaI shows pronounced gating hysteresis and remains open to a substantially lower membrane tension than is needed to initially open the channel. Thus, at near-lytic membrane tension, both MscL and YnaI will open, but while MscL has a large pore and must close quickly to minimize loss of essential metabolites, YnaI only conducts ions and can thus remain open for longer to continue to facilitate pressure equilibration across the membrane.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.