文章基本信息

标题：Orientation and Motion of Amphiphilic Spin Labels in Hexagonal Lipid Phases
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作者：J. M. Boggs ; J. C. Hsia
期刊名称：Proceedings of the National Academy of Sciences
印刷版ISSN：0027-8424
电子版ISSN：1091-6490
出版年度：1973
卷号：70
期号：5
页码：1406-1409
DOI：10.1073/pnas.70.5.1406
语种：English
出版社：The National Academy of Sciences of the United States of America
摘要：The acyl chain of spin-labeled fatty acids intercalates between the lipid hydrocarbon chains in hexagonal and micellar phases with the carboxyl group anchored at the lipid water interface. The spectra are characteristic of anisotropic motion and cannot be distinguished from the spectra of these probes in lamellar dispersions. In the hexagonal and micellar phases the molecular motion of the spin label increases as it is moved further away from the carboxyl group, similar to the behavior in the lamellar phase (Jost et al. (1971) J. Mol. Biol. 59, 77-98). The similarity in packing of the acyl chains in the hexagonal and lamellar phases suggests that localized regions of hexagonal phase are compatible with a bilayer matrix.
关键词：membrane ; cardiolipin ; gangliosides ; Ca⁺⁺ ; phase transition