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Differential stiffness and lipid mobility in the leaflets of purple membranes.

Abstract:

Purple membranes (PM) are two-dimensional crystals formed by bacteriorhodopsin and a variety of lipids. The lipid composition and density in the cytoplasmic (CP) leaflet differ from those of the extracellular (EC) leaflet. A new way of differentiating the two sides of such asymmetric membranes using the phase signal in alternate contact atomic force microscopy is presented. This method does not require molecular resolution and is applied to study the stiffness and intertrimer lipid mobility i...

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Publication status:
Published

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Publisher copy:
10.1529/biophysj.105.072405

Authors

More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Condensed Matter Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MSD
Department:
Biochemistry
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Condensed Matter Physics
Role:
Author
Journal:
Biophysical journal More from this journal
Volume:
90
Issue:
6
Pages:
2075-2085
Publication date:
2006-03-01
DOI:
EISSN:
1542-0086
ISSN:
0006-3495
Language:
English
Keywords:
Pubs id:
pubs:10044
UUID:
uuid:c486e5d7-1265-4562-bc2a-f91fc2a4876d
Local pid:
pubs:10044
Source identifiers:
10044
Deposit date:
2013-09-17

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