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

Minor groove facing the histone octamer

Backbone facing the histone octamer

Major groove facing the histone octamer

Step

(Region I)

(Region II)

(Region III)

BI/BI

BI/BII

BII/BII

BI/BI

BI/BII

BII/BII

BI/BI

BI/BII

BII/BII

AA/TT

34.3

(3.7)

38.7

(3.8)

41.2

(3.2)

34.5

(3.9)

37.7

(6.3)

41.9

NA

32.4

(2.7)

33.7

(3.5)

35.2

NA

241

67

8

122

21

1

289

55

1

AG/CT

33.6

(2.7)

37.9

(3.4)

41.0

(3.7)

36.3

(2.1)

33.7

NA

NA

30.5

(3.7)

32.1

(3.7)

NA

104

119

47

29

2

0

139

38

0

GA/TC

37.5

(2.2)

38.4

(2.4)

42.1

NA

32.4

(3.5)

36.9

(3.0)

39.1

NA

33.7

(3.7)

35.6

(2.5)

37.1

NA

82

117

2

73

31

3

153

54

2

GG/CC

29.5

(4.3)

36.1

(4.6)

44.1

(2.9)

29.2

(3.5)

32.1

(3.0)

29.5

NA

32.7

(3.3)

35.5

(2.5)

NA

71

150

28

42

16

1

75

13

0

AC/GT

30.8

NA

39.1

NA

NA

32.1

(2.6)

38.0

NA

NA

31.8

(2.7)

35.2

(4.2)

NA

1

4

0

59

1

0

271

20

0

AT/AT

34.6

(2.9)

37.6

(2.9)

NA

32.4

(3.4)

36.4

NA

NA

33.1

(3.6)

35.8

(3.2)

NA

109

5

0

110

4

0

139

6

0

GC/GC

34.2

(3.7)

38.7

(2.7)

41.6

(2.3)

26.9

(3.1)

36.5

(2.3)

NA

26.6

(2.2)

30.3

NA

NA

32

102

12

29

28

0

26

1

0

CA/TG

33.9

(2.5)

38.8

(4.9)

45.8

(3.2)

34.1

(3.0)

35.8

(4.6)

45.0

(3.5)

31.1

(3.9)

35.1

(5.3)

47.7

(3.7)

54

65

120

72

82

54

158

99

51

CG/CG

37.4

NA

38.2

(2.0)

38.6

(4.1)

NA

NA

NA

38.6

NA

38.6

NA

NA

3

35

10

0

0

0

1

1

0

TA/TA

35.7

(2.5)

40.5

NA

51.4

NA

38.1

(3.1)

41.1

(2.2)

44.8

NA

31.2

(3.6)

31.3

(3.0)

33.7

NA

33

2

1

15

16

1

82

29

1

Overall

34.2

(3.8)

37.9

(3.8)

43.9

(4.0)

32.9

(4.0)

36.4

(4.5)

44.4

(4.1)

32.0

(3.5)

34.3

(4.3)

46.9

(4.8)

730

666

228

551

201

60

1333

316

55