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231223s2006 xx ||||| 00| ||eng c |
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|a eng
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|a Seba, Hadj B
|e verfasserin
|4 aut
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|a Combined use of Overhauser spectroscopy and NMR diffusion experiments for mapping the hydration structure of nucleosides
|b structure and dynamics of uridine in water
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|c 2006
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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|a Band
|b nc
|2 rdacarrier
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|a Date Completed 05.09.2007
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|a Date Revised 21.11.2013
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|a published: Print
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|a Citation Status MEDLINE
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|a Copyright 2006 John Wiley & Sons, Ltd.
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|a Complementary results from 13C intermolecular nuclear Overhauser effects (NOE), 1H-13C heteronuclear Overhauser spectroscopy (HOSEY) and 1H-NMR diffusion measurements were used for probing the structure of the first solvation shell of uridine in water. It is demonstrated that a cyclic dihydrate is formed. The two water molecules produce two hydrogen bonds with the two oxygen atoms from the pyrimidine ring and accept only one hydrogen bond from the amide proton. The dihydrate has only a short lifetime as compared with the rotational correlation time of the free nucleoside. The chemical exchange constant of the amide proton with water is then estimated by diffusion experiments. The results are consistent with previous data obtained for uracil in water and provide interesting information about water accessibility in nucleic acid bases
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|a Journal Article
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|a Nucleosides
|2 NLM
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|a Water
|2 NLM
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|a 059QF0KO0R
|2 NLM
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|a Uridine
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|a WHI7HQ7H85
|2 NLM
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|a Thureau, Pierre
|e verfasserin
|4 aut
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|a Ancian, Bernard
|e verfasserin
|4 aut
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|a Thévand, André
|e verfasserin
|4 aut
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|i Enthalten in
|t Magnetic resonance in chemistry : MRC
|d 1985
|g 44(2006), 12 vom: 20. Dez., Seite 1109-17
|w (DE-627)NLM098179667
|x 1097-458X
|7 nnas
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|g volume:44
|g year:2006
|g number:12
|g day:20
|g month:12
|g pages:1109-17
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