Nuclear Magnetic Relaxation Study of Tobacco Mosaic Virus Solutions

The molecular order of water in liquid-crystalline 5–28% tobacco mosaic virus (TMV) solutions was studied by proton spin-spin, spin-lattice, and translational self-diffusion coefficient measurements at various concentrations as well as by deuteron D 2O nuclear magnetic resonance (NMR) studies. The r...

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Bibliographic Details
Published inBiophysical journal Vol. 13; no. 7; pp. 622 - 625
Main Authors Blinc, R., Pirš, J., Easwaran, K., Ehrenberg, L.
Format Journal Article
LanguageEnglish
Published United States Elsevier Inc 01.07.1973
Subjects
Crystallization
Deuterium
Diffusion
Magnetic Resonance Spectroscopy
Solubility
Temperature
Tobacco Mosaic Virus - analysis
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Summary:The molecular order of water in liquid-crystalline 5–28% tobacco mosaic virus (TMV) solutions was studied by proton spin-spin, spin-lattice, and translational self-diffusion coefficient measurements at various concentrations as well as by deuteron D 2O nuclear magnetic resonance (NMR) studies. The results show that the average H 2O molecule spends less than 1% of its time in an ordered state bound to the TMV backbone. The protons on the TMV molecules themselves, on the other hand have a very short spin-spin relaxation time T 2 of about 20 μs, demonstrating the existence of a high degree of liquid-crystalline order.
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ISSN:0006-3495
1542-0086
DOI:10.1016/S0006-3495(73)86012-6