Molecular dynamics simulation of POPC at low hydration near the liquid crystal phase transition

被引:13
作者
Ceccarelli, M
Marchi, M
机构
[1] Ecole Normale Super Lyon, CECAM, F-69364 Lyon, France
[2] Univ Cagliari, INFM, Dipartimento Sci Fis, I-09124 Cagliari, Italy
[3] CEA, Ctr Etudes, DSV, DBCM,Sect Biophys Proteines & Membranes,DBCM, F-91191 Gif Sur Yvette, France
关键词
POPC; molecular dynamics; liquid crystal phase transition;
D O I
10.1016/S0300-9084(00)80009-7
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
We report results of a preliminary molecular dynamics study of a 1-palmitoyl-2-oleoylphosphatidyicholine (POPC) bilayer at low hydration (5% in weight). Our results suggest a gel phase structure where the oleic chain is bent recalling the crystalline oleic acid structure. We have also found a discontinuity in the volume/temperature curve which might be related to the gel to liquid crystal phase transition in POPC ((C) Societe francaise de biochimie et biologie moleculaire / Elsevier, Paris).
引用
收藏
页码:415 / 419
页数:5
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