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MscS ion channels, illustration
Illustration of small conductance mechanosensitive channels (MscS) from an Escherichia coli bacterium. MscSs play a critical role in converting physical stress at the cell membrane into an electrochemical response. They respond to smaller pressures than the large conductance channels. In prokaryotes such as bacteria, such channels open in response to stretch forces in the membrane and help regulate osmotic pressure within the cell by controlling the passage of ions through it., by FRANCISCO J. ENGUITA/SCIENCE PHOTO LIBRARY
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