期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 125, 期 51, 页码 15764-15766出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja038106s
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资金
- NIGMS NIH HHS [GM56149] Funding Source: Medline
Nearest-neighbor recognition measurements have established that the effects of deuterium substitution on phospholipid mixing are exceedingly small. Thus, the mixing behavior of an exchangeable phospholipid bearing two stearoyl chains with a homologue containing two myristoyl chains in gel-fluid bilayers, fluid bilayers, cholesterol-rich fluid bilayers, and gel-fluid bilayers that have been enriched with cholesterol correspond to a difference in the free energy of mixing that is less than 2.2 cal/mol of hydrogen in all cases. These findings provide the strongest evidence to date in support of the use of deuterated phospholipids as nonperturbing probes for structural and dynamic studies of bilayer membranes.
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