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Table 3 Predicted and observed methylation levels for XY, XXY, XXXY, and XXXXY at the MAOA and AR loci

From: DNA methylation and behavioral dysfunction in males with 47,XXY and 49,XXXXY: a pilot study

 

XY

XXY

XXXY*

XXXXY

 

Xa/Obs

Xa

Xi

Obs

XaXaXa

XaXaXi

XaXiXi

XiXiXi

Obs

XaXaXaXa

XaXaXaXi

XaXaXiXi

XaXiXiXi

XiXiXiXi

Obs

MAOA

               

CpG-1

10.4

10.4

56.4

33.4

10.4

25.8

41.1

56.4

47.2

10.4

21.9

33.4

44.9

56.4

54.3

CpG-2

6.9

6.9

98.1

52.5

6.9

37.3

67.7

98.1

68.4

6.9

29.7

52.5

75.3

98.1

70.8

CpG-3

5.6

5.6

45.9

25.7

5.6

19.0

32.5

45.9

39.6

5.6

15.7

25.7

35.8

45.9

41.2

CpG-4

5.9

5.9

91.8

48.9

5.9

34.6

63.2

91.8

59.9

5.9

27.4

48.9

70.3

91.8

63.1

CpG-5

6.0

6.0

83.0

44.5

6.0

31.7

57.3

83.0

61

6.0

25.2

44.5

63.7

83.0

69.0

CpG-6

4.2

4.2

77.5

40.9

4.2

28.7

53.1

77.5

53.0

4.2

22.5

40.9

59.2

77.5

62.0

CpG-7

7.6

7.6

98.1

52.9

7.6

37.8

67.9

98.1

72.2

7.6

30.2

52.9

75.5

98.1

78.3

AR

               

CpG-1

3.0

3.0

34.2

18.6

NA

NA

NA

NA

NA

3.0

10.8

18.6

26.4

34.2

31.0

CpG-2

4.6

4.6

37.1

20.8

NA

NA

NA

NA

NA

4.6

12.7

20.8

28.9

37.1

28.4

CpG-3

7.1

7.1

82.7

44.9

NA

NA

NA

NA

NA

7.1

26.0

44.9

63.8

82.7

54.9

CpG-4

10.7

10.7

38.6

24.7

NA

NA

NA

NA

NA

10.7

17.7

24.7

31.6

38.6

36.5

  1. *Methylation levels for XXXY were not available (NA) for AR, as there were no XXY probands. Xa denotes active X chromosome, and Xi denotes inactive X chromosome. Numbers in bold denote the predicted methylation values of Xa and Xi combinations that gave the closest value to that observed (Obs) experimentally by pyrosequencing. For XY, Xa was based on observed methylation at the X chromosome. For XXY, Xi was calculated based on Xa values from XY. For XXXY and XXXXY, all of the Xa and Xi were predicted based on values from XY and XXY and then compared to actually observed values from XXXY and XXXXY by pyrosequencing. All observed methylation vales have been adjusted by effects of testosterone