| Literature DB >> 508752 |
W J De Grip, E H Drenthe, C J Van Echteld, B De Kruijff, A J Verkleij.
Abstract
31P-NMR measurements demonstrate that at 37 degrees C, independent of the photolytic state of the photopigment rhodopsin, the lipids in the photo-receptormembrane are almost exclusively organised in a bilayer. In strong contrast, the 31P-NMR spectra of the extracted lipids are characteristic for the hexagonal HII phase and an isotropic phase. The isotropic phase is characterised by freeze-fracture electron microscopy as particles and pits on smooth surfaces, possibly indicating inverted micelles. These results suggest a structural role for rhodopsin in maintaining the photoreceptor membrane lipids in a bilayer configuration.Entities:
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Year: 1979 PMID： 508752 DOI： 10.1016/0005-2736(79)90269-4
Source DB: PubMed Journal: Biochim Biophys Acta ISSN： 0006-3002