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Table 4 Mean and standard deviation values (given in parentheses, reported only for datasets with size ≥ 5) for roll for the ten dinucleotide steps containing Watson-Crick basepairs.

From: Small local variations in B-form DNA lead to a large variety of global geometries which can accommodate most DNA-binding protein motifs

  Roll
  RNA Free Complex HTH
Dinucleotide Sequence*   A-like (Z p > 1.3 Å) B-like (Z p ≤ 0.8 Å) All Excl. TEH† All Excl. TC‡
AA/TT 9.3 (2.9) NA 0.2 (4.0) 6.6 (13.0) 1.7 (7.6) 2.8 (7.8) 1.5 (4.1)
AG/CT 8.6 (2.2) 3.2 NA 3.5 (4.7) 4.3 (7.4) 3.3 (5.2) 5.4 (8.6) 4.3 (4.9)
GA/TC 9.3 (4.9) 11.6 NA 0.6 (3.7) 1.3 (7.2) 3.0 (4.4) 2.6 (4.8) 2.5 (4.7)
GG/CC 8.3 (2.4) 7.5 (4.1) 6.1 (2.7) 4.7 (4.5) 5.7 (4.1) 5.3 (4.1) 5.5 (4.2)
AC/GT 6.3 (3.3) 3.9 (3.9) 0.2 (4.9) 2.0 (5.0) 2.9 (3.4) 2.5 (4.1) 2.4 (4.0)
AT/AT 11.3 (3.6) 1.3 NA -0.4 (3.8) 4.6 (11.7) 0.5 (4.5) 1.5 (5.8) 0.7 (3.5)
GC/GC 6.4 (2.9) 6.6 (4.2) -3.7 (5.7) 1.1 (4.7) 1.1 (5.1) 2.9 (4.2) 2.7 (4.1)
CA/TG (BI) 11.9 (3.9) 10.1 (4.8) 6.1 NA 6.9 (5.7) 8.0 (4.0) 8.2 (7.8) 7.3 (3.9)
CA/TG (BII) NA NA -4.8 (4.9) -0.4 (7.4) -0.5 (7.6) 2.8 (9.3) 2.6 (8.4)
CG/CG 10.8 (4.5) 11.9 (4.3) 6.1 (5.0) 9.0 (14.0) 7.5 (3.3) 6.5 (8.7) 6.3 (8.1)
TA/TA 12.1 (5.0) 12.0 NA 2.4 (6.1) 14.3 (19.1) 3.9 (6.8) 5.6 (10.6) 3.5 (6.4)
Overall 9.0 (4.0) 8.2 (4.8) 1.2 (5.3) 5.0 (10.7) 3.3 (5.9) 4.0 (7.4) 3.4 (5.3)
Fibre-Model   11.1 1.3     
  1. †TEH – TBP, Endonuclease and Hyperthermophile chromosomal protein SAC7D containing structures (excluded)
  2. ‡TC – TBP and CAP containing structures (excluded)
  3. The other specifications are as detailed in the caption to table 1.