Condensed complexes of cholesterol and phospholipids

Harden M. McConnell, Arun Radhakrishnan

Research output: Contribution to journalReview article

319 Scopus citations

Abstract

There is overwhelming evidence that lipid bilayer regions of animal cell membranes are in a liquid state. Quantitative models of these bilayer regions must then be models of liquids. These liquids are highly non-ideal. For example, it has been known for more than 75 years that mixtures of cholesterol and certain phospholipids undergo an area contraction or condensation in lipid monolayers at the air-water interface. In the past 3 years, a thermodynamic model of "condensed complexes" has been proposed to account for this non-ideal behavior. Here we give an overview of the model, its relation to other models, and to modern views of the properties of animal cell membranes.

Original languageEnglish (US)
Pages (from-to)159-173
Number of pages15
JournalBiochimica et Biophysica Acta - Biomembranes
Volume1610
Issue number2
DOIs
StatePublished - Mar 10 2003

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Keywords

  • Cholesterol regulation
  • Fatty acid
  • Membrane
  • Monolayer
  • Phase diagram
  • Short-range order

ASJC Scopus subject areas

  • Biophysics
  • Biochemistry
  • Cell Biology

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