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:1975
卷号:72
期号:9
页码:3351-3354
DOI:10.1073/pnas.72.9.3351
语种:English
出版社:The National Academy of Sciences of the United States of America
摘要:Studies of the fluorescence polarization of 1,6-diphenyl-1,3,5-hexatriene in membranes of normal, transformed, and revertant 3T3 cells allowed estimation of microviscosities (eta) of the lipid bilayers of these cells. Fluorescence polarization values observed with normal cells were significantly lower than those observed with cells transformed either by polyoma virus or by simian virus 40. The values of fluorescence polarization obtained with revertant Py6R1 cells were lower than those obtained with the normal cells. The calculated microviscosities (eta) show a 50% increase upon transformation. Possible correlations between the bilayer viscosity and the mobility of the receptors in the membrane are discussed.