Classification of each dinucleotide step in a right-handed nucleic acid
structure: A-like; B-like; TA-like, or other cases.

    step       Xp      Yp      Zp     XpH     YpH     ZpH    Form
   1 GG/CC   -1.08    8.29    2.49   -4.65    7.90    3.54     A
   2 GG/CC   -1.50    8.11    2.63   -4.41    8.12    2.60     A
   3 GG/CC   -1.99    8.50    2.21   -7.87    6.66    5.41     A
   4 GU/AC   -1.69    8.45    1.94   -4.40    7.96    3.43     A
   5 UA/UA   -1.95    8.41    1.97   -5.95    7.84    3.59     A
   6 AC/GU   -1.89    7.48    3.46   -4.49    6.97    4.38
   7 CG/CG   -1.92    8.39    2.27   -8.32    7.41    4.54     A
   8 GA/UC   -1.63    8.29    1.89   -3.13    7.88    3.22     A
   9 AG/CU   -1.70    8.36    2.27   -6.32    8.11    3.04     A
  10 GG/CC   -1.49    7.73    3.10   -6.13    6.85    4.72     A
  11 GU/AC   -0.87    6.88    3.73   -2.12    6.67    3.98
  12 UU/GA    2.75    4.15    1.01    0.93    4.13    1.08
  13 UA/UG    ---     ---     ---     ---     ---     ---     ---
  14 AU/UU    1.06    7.08    2.39   -1.13    6.85    3.24
  15 UU/AU   -0.48    8.37    2.04   -2.97    8.01    3.20
  16 UC/GA   -2.22    7.91    2.22   -4.33    7.70    2.83     A
  17 CC/GG   -2.25    8.23    2.20   -8.03    6.96    4.95     A
  18 CG/CG   -2.03    8.54    2.16   -7.88    6.17    6.23     A
  19 GG/CC   -2.17    8.26    1.82   -6.40    7.01    4.74     A
  20 GC/AC   -1.42    8.59    1.73   -3.26    8.30    2.86
  21 CG/CA   -3.24    7.18    3.56   -4.84    6.33    4.87
  22 GC/GC   -1.72    8.05    2.59   -4.47    7.93    2.93     A
  23 CC/GG   -1.52    8.43    2.55   -6.67    7.92    3.82     A
  24 CA/AG   -1.95    4.83    2.06   -2.75    4.84    2.49
  25 AA/UA   -0.76    5.37    4.07   -4.64    5.74    5.44
  26 AG/CU    2.54    1.91    2.00    3.67    2.30    1.63
  27 GG/CC    ---     ---     ---     ---     ---     ---     ---