Ideal Geometries
Orthogonal coordinates for DNA and
RNA monomers derived from the standard distances and angles that are
described by Gelbin et al. (Geometric Parameters in Nucleic Acids: Sugar
and Phosphate Constituents. Anke Gelbin, Bohdan Schneider, Lester Clowney,
Shu-Hsin Hsieh, Wilma K. Olson, and Helen M. Berman. (1996), J. Am.
Chem. Soc., 118, 519-529.) and Clowney et al. (Geometric Parameters
in Nucleic Acids: Nitrogenous Bases. Lester Clowney, Shri C. Jain, A.
R. Srinivasan, John Westbrook, Wilma K. Olson, and Helen M. Berman.
(1996), J. Am. Chem. Soc., 118, 509-518.)
The coordinates were derived by optimizing the valence and torsion angles with respect to the standard values in the X-PLOR files param_ndbx.dna. The root mean square devations for bond distances were <0.001 angstroms; for bond angles, <0.3 degrees; and for dihedral angles, <0.8 degrees.
DNA/RNA Bases
Sugar Phosphate Backbone
©1995-2005 The Nucleic Acid Database Project
Rutgers, The State University of New Jersey
