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Table 1 Projected X-Equilibria.

From: Evolution of genomic sequence inhomogeneity at mid-range scales

Equilibrium for X-percentage computed from each substitution rate

Type of region

Observed X -percentage

rare SNPs

minor SNPs

Medium SNPs

major SNPs

fixed substit.

G-rich

40%

14.5%

16.9%

22.3%

36.0%

32.1%

nonG-rich

7%

14.6

13.4

10.6

7.6

7.8

G-average

20%

17.1

18.0

19.2

23.0

22.2

C-rich

40%

13.8

16.9

23.0

33.90

32.4

nonC-rich

7%

14.5

12.7

10.2

8.0

7.8

C-average

20%

17.1

18.1

19.2

23.1

22.1

A-rich

49.5%

41.4

40.3

42.0

43.5

44.1

nonA-rich

12.9%

32.3

26.3

20.8

10.9

12.6

A-average

29.4%

34.1

32.6

30.7

26.0

27.0

T-rich

49.5%

39.5

39.5

42.8

43.2

44.6

nonT-rich

12.9%

33.4

27.3

19.9

11.5

12.6

T-average

29.4%

34.2

32.6

30.8

25.9

27.1

GT-rich

69.8%

56.9

60.7

64.6

70.8

70.4

nonGT-rich

30.1%

41.7

37.7

36.5

29.2

30.1

GT-average

50.0%

49.9

50.0

50.0

50.0

50.0

GA-rich

70.0%

56.6

56.6

60.0

63.2

65.8

nonGA-rich

29.9%

44.6

42.1

39.1

31.7

34.1

GA-average

50.0%

49.9

50.1

50.0

49.9

49.9

GC-rich

71.3%

26.4

31.7

39.5

56.1

60.6

nonGC-rich

20.0%

30.2

29.3

27.8

27.4

24.4

GC-average

40.7%

34.9

36.8

39.0

45.7

45.0

  1. The calculated equilibria percentages (see Equation 3) for X-bases in X-rich MRI and control regions with average X-composition. Projected equilibria are given based on the substitution rates of rare, minor, medium, and major SNPs as well as for the fixed substitution rates (chimp-macaque to human).