Yv. Rubin et al., THE INVESTIGATION OF STRUCTURAL TRANSITIONS AND ENERGY-TRANSFER IN DNA SOLUTION IN RANGE 4.2-273-K USING 6-THIOGUANINE, International journal of quantum chemistry, 1994, pp. 187-194
The electronic structure of the low-temperature phosphorescencent prob
e 6-thioguanine was investigated. Structural transitions in some alcoh
ols (ethanol, glycerol, propanediol) were obtained using this probe in
the range 4.2-273 K. Aqueous solutions of native and denatured DNA an
d those of native DNA with propanediol and DMSO added were studied in
the range of 4.2-273 K. The analysis of the luminescence spectra of DN
A solutions permits the assumption of the energy transfer to the probe
on vv radiation of DNA. (C) 1994 John Wiley & Sons, Inc.