Raman spectroscopic and X-ray diffraction studies of the effect of temperature and Ca2+ on phosphatidylethanolamine dispersions.
Raman spectroscopy and X-ray diffraction are used to study the effect of heat and Ca2+ on dimyristoylphosphatidylethanolamine dispersions. Unlike phosphatidylcholine dispersions, dimyristoylphosphatidylethanolamine bilayers (at pH 8) require heating above Tm in order for hydration to occur and apparently bind Ca2+ at very low levels. These results are related to models for membrane fusion.
D002118:Calcium; D007700:Kinetics; D008051:Lipid Bilayers; D010714:Phosphatidylethanolamines; D013059:Spectrum Analysis, Raman; D013329:Structure-Activity Relationship; D013696:Temperature; D014961:X-Ray Diffraction
D008051:Lipid Bilayers; D010714:Phosphatidylethanolamines; D002118:Calcium; C018525:1,2-dimyristoylphosphatidylethanolamine