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The correlation between ~(13)C chemical shifts of DNA and structure parameters (the mainaxis helix twist angle Ω, base--plane roll angle ρ, main chain torsion angle δ and pro-peller twist angle ω) has been discovered and proved indirectly. The carbons relating tothe structure parameters have been found and interpreted theoretically. Relative variationsin chemical shifts of these carbons obviously reflect purine-purine clash (steric hindrance)and have been compared with sum functions Σ of Calladine--Dickerson rules. It would bepossible to provide the information about conformation of DNA from ~(13)C NMR spectra andto observe the structure parameters of Ω,ρ,δ and ω of DNA in solution.
The correlation between ~ (13) C chemical shifts of DNA and structure parameters (the mainaxis helix twist angle Ω, base-plane roll angle ρ, main chain torsion angle δ and pro-peller twist angle ω) . The carbons relating tothe structure parameters have been found and contemplating theoretically. Relative variations in chemical shifts of these carbons (UNS), which reflect reflectine purine-purine clash (steric hindrance) and have been compared with sum functions Σ of Calladine - Dickerson rules. It would bepossible to provide the information about conformation of DNA from ~ (13) C NMR spectra and observe the structure parameters of Ω, ρ, δ and ω of DNA in solution.