Acyl-chain correlation in membrane fusion intermediates: x-ray diffraction from the rhombohedral lipid phase.
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ABSTRACT:
SUBMITTER: Weinhausen B
PROVIDER: S-EPMC3341562 | biostudies-other | 2012 May
REPOSITORIES: biostudies-other
Publications
Acyl-chain correlation in membrane fusion intermediates: x-ray diffraction from the rhombohedral lipid phase.
Weinhausen Britta B Aeffner Sebastian S Reusch Tobias T Salditt Tim T
Biophysical journal 20120501 9
We have studied the acyl-chain conformation in stalk phases of model membranes by x-ray diffraction from oriented samples. As an equilibrium lipid phase induced by dehydration, the stalk or rhombohedral phase exhibits lipidic passages (stalks) between adjacent bilayers, representing a presumed intermediate state in membrane fusion. From the detailed analysis of the acyl-chain correlation peak, we deduce the structural parameters of the acyl-chain fluid above, at, and below the transition from th ...[more]
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