| Laser Raman spectroscopic study of specifically deuterated phospholipid bilayers. | |
| | |
MedLine Citation:
|
PMID: 7378385 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
Raman spectra of 1,2-dimyristoyl-sn-glycero-3-phosphocholines specifically deuterated in the 2 chain at one of positions 3, 4, 6, 10, 12, and 14 have been obtained as a function of temperature. The frequencies of the CD2 vibrational stretching modes depend on the position of the labeled CD2 group, being maximum at position 3 of the acyl chain and then decreasing until they become constant beyond position 6. This frequency dependence is interpreted in terms of the inductive effect of the charge distribution of the acyl chain carboxyl group. In both gel and liquid-crystal phases, the Raman line widths depend on the position of the CD2 group, being minimum at position 6 and increasing toward both ends of the hydrocarbon chain. The width of the CD stretching bands abruptly increases at the phase transition temperature. The magnitude of the increase depends upon the position of the label, increasing almost linearly up to position 10 and then decreasing for positions 12 and 14. The spectra for the CD2 group at position at position 3 and the terminal CD3 group are almost the same in both phases. These results are interpreted in terms of the effects of hydrocarbon chain organization on the vibrational modes. |
| | |
Authors:
|
R Bansil; J Day; M Meadows; D Rice; E Oldfield |
Related Documents
:
|
11710135 - A molecular description of the gelation mechanism of konjac mannan. 21881255 - Short- and long-term stability of lyophilised melatonin-loaded lecithin/chitosan nanopa... 4016105 - A calorimetry and deuterium nmr study of mixed model membranes of 1-palmitoyl-2-oleylph... 8323945 - Interactions of laurdan with phosphatidylcholine liposomes: a high pressure ftir study. 18232755 - Suppression of heating rates in cryogenic surface-electrode ion traps. 11071905 - A point mutation in the transmembrane domain of the hemagglutinin of influenza virus st... |
Publication Detail:
|
Type: Journal Article; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
|
Title: Biochemistry Volume: 19 ISSN: 0006-2960 ISO Abbreviation: Biochemistry Publication Date: 1980 Apr |
Date Detail:
|
Created Date: 1980-08-25 Completed Date: 1980-08-25 Revised Date: 2006-11-15 |
Medline Journal Info:
|
Nlm Unique ID: 0370623 Medline TA: Biochemistry Country: UNITED STATES |
Other Details:
|
Languages: eng Pagination: 1938-43 Citation Subset: IM |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Deuterium Dimyristoylphosphatidylcholine Lipid Bilayers* Molecular Conformation Myristic Acids Phosphatidylcholines* Spectrum Analysis, Raman |
| Chemical | |
Reg. No./Substance:
|
0/Lipid Bilayers; 0/Myristic Acids; 0/Phosphatidylcholines; 13699-48-4/Dimyristoylphosphatidylcholine; 7782-39-0/Deuterium |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Hydrolysis of phosphatidylethanolamine induced by nominally synthetic lysophosphoglycerides: methodo...
Next Document: The poly(adenylic acid)-protein complex is restricted to the nonpolysomal messenger ribonucleoprotei...