Andreas Horner, A. Sergey Akimov, Peter Pohl,
"Long and short lipid molecules experience the same interleaflet drag in lipid bilayers"
, in Physical Review Letters, Serie 110, Vol. 110, Nummer 26, Seite(n) 268101, 6-2013
Long and short lipid molecules experience the same interleaflet drag in lipid bilayers
Sprache des Titels:
Membrane interleaflet viscosity N e affects tether formation, phase separation into domains, cell shape
changes, and budding. Contrary to the expected contribution to interleaflet coupling from interdigitation,
the slide of lipid patches in opposing monolayers conferred the same value N e~3x10^9 Jsm^-4 for the friction
experienced by the ends of both short and long chain fluorescent lipid analogues. Consistent with
the weak dependence of the translational diffusion coefficient on lipid length, the in-layer viscosity was,
albeit length dependent, much smaller than N e.