4.8 Article

Membrane Tension Lowering Induced by Protein Activity

Journal

PHYSICAL REVIEW LETTERS
Volume 102, Issue 3, Pages -

Publisher

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.102.038102

Keywords

-

Funding

  1. European Network of Excellence SoftComp [NMP3-CT2004-502235]
  2. Indo-French Center CEFIPRA [3504-2]

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Using videomicroscopy we present measurements of the fluctuation spectrum of giant vesicles containing bacteriorhodopsin pumps. When the pumps are activated, we observe a significant increase of the fluctuations in the low wave vector region, which we interpret as due to a lowering of the effective tension of the membrane.

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