Raw two-dimensional torsion angle
database potential for mean force for nucleic acids (DNA and RNA
combined)
Kuszewski, J., Gronenborn, A.M. & Clore, G.M. (1997) Improvements
and extensions in the conformational database potential for the
refinement of NMR and X-ray structures of proteins and nucleic
acids. J. Magn. Reson. 125, 171-177. pubmedPDF