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.

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