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  • 1
    ISSN: 0020-7608
    Keywords: hydrogen bonding ; DNA ; base analogs ; stacking interaction ; reaction field ; Chemistry ; Theoretical, Physical and Computational Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: In a recent experimental study, it was reported that replacement of thymine in the adenine-thymine base pair of DNA by its molecular analogs which cannot form proper hydrogen bonds with adenine (A) does not cause disruption of DNA structure and synthesis. AM1 and ab initio molecular orbital calculations and electric field mapping were carried out in order to examine the possibility of pairing of A with each one of two analogs of thymine in the gas phase. Self-consistent reaction field calculations were also carried out on the individual molecules and their pairs using the polarized continuum model in order to examine their stability in aqueous media. Our results are broadly in agreement with the conclusions drawn in the above-mentioned experimental work.   © 1998 John Wiley & Sons, Inc. Int J Quant Chem 68: 351-355, 1998
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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