Table 6

Total number of datapoints for each dinucleotide step for which the values of tilt or roll lie beyond 3σ of the mean values for these parameters for the free B-DNA dataset, used by Marathe et al. [25]

Number of kinks of dinucleotide steps with

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

4

(1.7)

10

(14.9)

4

(50.0)

3

(2.5)

3

(14.3)

1

(100.0)

12

(4.2)

3

(5.5)

0

(0.0)


AG/CT

5

(4.8)

6

(5.0)

4

(8.5)

2

(6.9)

2

(100.0)

NA

26

(18.7)

4

(10.5)

NA


GA/TC

2

(2.4)

13

(11.1)

0

(0.0)

7

(9.6)

3

(9.7)

1

(33.3)

11

(7.2)

6

(11.1)

0

(0.0)


GG/CC

1

(1.4)

27

(18.0)

14

(50.0)

11

(26.2)

3

(18.8)

0

(0.0)

20

(26.7)

5

(38.5)

NA


AC/GT

0

(0.0)

0

(0.0)

NA

1

(1.7)

0

(0.0)

NA

7

(2.6)

3

(15.0)

NA


AT/AT

0

(0.0)

0

(0.0)

NA

0

(0.0)

1

(25.0)

NA

4

(2.9)

0

(0.0)

NA


GC/GC

3

(9.4)

6

(5.9)

2

(16.7)

1

(3.4)

1

(3.6)

NA

3

(11.5)

0

(0.0)

NA


CA/TG

1

(1.9)

7

(10.8)

62

(51.7)

7

(9.7)

7

(8.5)

13

(24.1)

41

(25.9)

13

(13.1)

3

(5.9)


CG/CG

0

(0.0)

0

(0.0)

0

(0.0)

NA

NA

NA

0

(0.0)

0

(0.0)

NA


TA/TA

0

(0.0)

0

(0.0)

1

(100.0)

0

(0.0)

0

(0.0)

0

(0.0)

11

(13.4)

10

(34.5)

0

(0.0)


Overall

16

(2.2)

69

(10.4)

87

(38.2)

32

(5.8)

20

(10.0)

15

(25.0)

135

(10.1)

44

(13.9)

3

(5.5)


The cutoff values used are: tilt < -7.2° or tilt > 6.0°, and roll < -14.7° or roll > 17.1°.

The numbers in parentheses denote the population as percentages, of the total number of datapoints for the respective step in the given conformation. The rest of the specifications are as described in the caption for table 3.

Marathe and Bansal BMC Structural Biology 2011 11:1   doi:10.1186/1472-6807-11-1

Open Data