An investigation of the dynamics of spermine bound to duplex and quadruplex DNA by 13 C NMR spectroscopy
A detailed analysis of the 13C relaxation of 13C-labelled spermine bound to duplex and quadruplex DNA is presented. T1, T2 and heteronuclear NOE data were collected at four 13C frequencies (75.4, 125.7, 150.9 and 201.2 MHz). The data were analyzed in terms of a frequency-dependent order parameter, S 2(ω), to estimate the generalized order parameter and the contributions to the relaxation from different motional frequencies in the picosecond-nanosecond timescale and from any exchange processes...[Show more]
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|Source:||European Biophysics Journal|
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