Ontology highlight
ABSTRACT:
SUBMITTER: Pliotas C
PROVIDER: S-EPMC3479538 | biostudies-literature | 2012 Oct
REPOSITORIES: biostudies-literature
Pliotas Christos C Ward Richard R Branigan Emma E Rasmussen Akiko A Hagelueken Gregor G Huang Hexian H Black Susan S SS Booth Ian R IR Schiemann Olav O Naismith James H JH
Proceedings of the National Academy of Sciences of the United States of America 20120910 40
The heptameric mechanosensitive channel of small conductance (MscS) provides a critical function in Escherichia coli where it opens in response to increased bilayer tension. Three approaches have defined different closed and open structures of the channel, resulting in mutually incompatible models of gating. We have attached spin labels to cysteine mutants on key secondary structural elements specifically chosen to discriminate between the competing models. The resulting pulsed electron-electron ...[more]