Theory for the bending rigidity of protein-coated lipid membranes

C. M. Chen*

*此作品的通信作者

研究成果: 雜誌貢獻會議論文同行評審

13 引文 斯高帕斯(Scopus)

摘要

We study the bending rigidity of protein-coated lipid bilayer membranes by a continuum Landau theory. For up-down symmetric membrane proteins, the bending rigidity (κ) of the membrane is found to increase linearly with protein fraction (φ) and coupling strength (λ) due to the coupling between membrane curvature and local protein fraction. We estimate the coupling strength as λ ∝ κap2/al2, where ap and al are the lateral sizes of proteins and lipids, respectively. Estimated values of λ/κ are given for various combinations of membrane proteins and lipids. We show that the presence of membrane proteins leads to thinning of the effective membrane thickness and reduces the mean layer spacing of a stack of bilayers.

原文英語
頁(從 - 到)41-50
頁數10
期刊Physica A: Statistical Mechanics and its Applications
281
發行號1
DOIs
出版狀態已發佈 - 2000 六月 15
事件5th Taiwan International Symposium on Statistical Physics (StatPhys-Taiwan-1999) - Taipei, Taiwan
持續時間: 1999 八月 91999 八月 12

ASJC Scopus subject areas

  • 統計與概率
  • 凝聚態物理學

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