X-ray diffraction study on interdigitated structure of phosphatidylcholines in glycerol.
X-ray diffraction was used to study the interdigitated structure of phosphatidylcholines (PCs) in glycerol. In this study, we investigated five different saturated diacyl PCs with carbon number from 14 to 18 in their acyl chains. It was found that lamellar spacings increase linearly as increasing the carbon number in the chains and that the increment is 0.10+/-0.01 nm per one carbon atom. The lamellar diffraction intensity data were analyzed, by applying a method proposed by Adachi [Chem. Phys. Lipids 107 (2000) 93]. The results indicate that the moiety around polar headgroup regions is almost unchanged, being independent of the carbon number.
Takahashi
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H
Department of Physics, Gunma University, 4-2 Aramaki, Maebashi 371-8510, Japan. htakahas@fs.aramaki.gunma-u.ac.jp
Ohta
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N
Hatta
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I
D005990:Glycerol / Q000737:chemistry*; D010713:Phosphatidylcholines / Q000737:chemistry*; D013329:Structure-Activity Relationship; D014961:X-Ray Diffraction / Q000379:methods
D010713:Phosphatidylcholines; D005990:Glycerol