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Interaction of Wedge-Shaped Proteins in Flat Bilayer Membranes

AuthorsSintes, Tomàs ; Baumgärtner, A.
Issue Date19-Aug-1998
PublisherAmerican Chemical Society
CitationThe Journal of Physical Chemistry B 102 (36): 7050-7057 (1998)
AbstractWe present extensively Monte-Carlo simulations of two conically-shaped proteins in parallel and antiparallel relative orientation, embedded in a flat lipid bilayer membrane with zero bending elasticity. We found two protein attractive regimes. The first one, in the range rs < σL, where σL is the lipid diameter and rs the distance between the surfaces of the two proteins, is due to depletion effects. The second one, in the range 1 < rs/σL < 6, originates from the density and orientational fluctuations of the lipids around each protein. It is found that the attractive force decays exponentially with a correlation length ξ/σL ≈ 3.2 independent of the shape and the size of the proteins.
Publisher version (URL)http://dx.doi.org/10.1021/jp9807266
Appears in Collections:(IMEDEA) Artículos
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