Interaction of lysophosphatidylcholine with phosphatidylcholine bilayers. A photo-physical and NMR study.
Interaction of lysophosphatidylcholine with phosphatidylcholine bilayers. A photo-physical and NMR study.
复制标题
溶血磷脂酰胆碱与磷脂酰胆碱双层的相互作用。
DOI:
10.1016/0005-2736(80)90185-6
复制
发表时间:
1980
期刊:
影响因子:
--
通讯作者:
Thomas,JK
中科院分区:
文献类型:
--
作者:
Morris,DA;McNeil,R;Castellino,FJ;Thomas,JK
Several photo-physical methods together with31P-NMR have been used to investigate the effect of lysophosphatidylcholine on phosphatidylcholine bilayers.31P-NMR shows that the permeability of the vesicle to Eu3+increases sharply above approx. 40% lysophosphatidylcholine: fluorescence-quenching studies also show this type of behavior. Similar sharp changes in vesicle properties are observed via the photo-physical technique at this lysophosphatidylcholine/phosphatidylcholine composition. Fluorescence spectra of pyrene and pyrene carboxaldehyde show that increasing lysophosphatidylcholine composition increases the polarity of the environments of these probes up to 40% lysocompound. Above this composition the photo-physical properties of the probes slowly revert to those characteristic of the micellar lyso-compound. The pyrene fluorescence lifetime, the fine structure of the fluorescence, and the case of formation of pyrene excimer in these bilayer mixtures suggest that pyrene complexes weakly with the charged nitrogen of the choline group of the phosphatidylcholine and that the physical state of the system has a striking effect on this complexation process. Similar experiments with simple quaternary compounds lend strong support to this suggestion. The studies monitor in several ways the effect of bilayer composition on movement of molecules in these systems. The degree or site of solubilization of carcinogens is also uniquely affected by composition.
登录
查看更多内容
DOI:
10.1016/0005-2736(77)90263-2
发表时间:
1977
期刊:
Biochimica et Biophysica Acta
影响因子:
--
作者:
B. D. Kruyff;A. Besselaar;L. M. Deenen
通讯作者:
L. M. Deenen
影响因子:
2.2
作者:
J. K. Thomas;F. Grieser;M. Wong
通讯作者:
M. Wong
影响因子:
2.2
作者:
S. Forsén;W. E. Frankle;P. Laszlo;J. Lubochinsky
通讯作者:
J. Lubochinsky
DOI:
10.1021/j100705a008
发表时间:
1970
期刊:
The Journal of Physical Chemistry
影响因子:
--
作者:
R. Mcneil;J. Richards;J. K. Thomas
通讯作者:
J. K. Thomas
DOI:
--
发表时间:
1973
期刊:
Biochemical and Biophysical Research Communications - BBRC
影响因子:
--
作者:
H. Hauser;M. Barratt
通讯作者:
M. Barratt