Geometric parameters in nucleic acids: Nitrogenous bases

By L. Clowney, Shri Jain, A. R. Srinivasan, John D. Westbrook, Wilma K. Olson, Helen M. Berman. 1996

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Macromolecular structure determination using X-rays, neutrons and electrons: recent developments in Phenix (2019, methodology): “For bond lengths and angles, Phenix makes use of the CCP4 monomer library restraints (Engh & Huber, 1991; Vagin & Murshudov, 2004; Vagin et al., 2004) in protein side chains and somewhat modified classic values for nucleic acids (Clowney et al., 1996; Gelbin et al., 1996).”
A standard reference frame for the description of nucleic acid base-pair geometry. (2001, background): “07 Base-pair con®gurations sampled at 0.1 AÊ increments of dC10 C10 between 9.5-11.5 AÊ and 0.1 intervals in lY and lR between 50 and 58 , i.e. 21 81 81 137,781 states. a Based on the survey of high-resolution crystal structures of nucleic acid analogs by Clowney et al.5 Values are unchanged in a su”
3DNA: a software package for the analysis, rebuilding and visualization of three-dimensional nucleic acid structures. (2003, background): “5 AÊ ) bases on the average geometry of high resolution structures (89).”
3DNA: a versatile, integrated software system for the analysis, rebuilding and visualization of three-dimensional nucleic-acid structures (2008, background): “in RNA (Running Nucleic Acids), to superimpose a standard bas”