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Table 1 Variant calls in samples untreated and treated with UDG. Number and percentage of transitions (Ts), transversions (Tv), and transition/transversion ratio (Ts/Tv) are shown for each sample. Mean value with standard deviation (Std Dev), confidence interval (CI) of 95% and paired t-test p-value are also shown

From: Use of uracil-DNA glycosylase enzyme to reduce DNA-related artifacts from formalin-fixed and paraffin-embedded tissues in diagnostic routine

 

Trasition (Ts)

Transversion (Tv)

Ts/Tv ratio

Samples

non UDG

with UDG

reduction (%)

non UDG

with UDG

reduction (%)

non UDG

with UDG

reduction (%)

PP209

139

18

87

9

6

33

15.4

3

81

K2568

194

9

95

7

5

29

27.7

1.8

94

A11

220

37

83

9

12

-33

24.4

3.1

87

A14

83

21

75

7

4

43

11.9

5.3

56

A19

24

7

71

3

3

0

8

2.3

71

A20

310

NA

NA

7

NA

NA

44.3

NA

NA

A25

338

28

92

9

3

67

37.6

9.3

75

A43

28

22

21

5

4

20

5.6

5.5

2

O10

179

30

83

5

6

-20

35.8

5

86

O15

152

9

94

3

3

0

50.7

3

94

O16

144

20

86

7

9

-29

20.6

2.2

89

O6

81

6

93

2

3

-50

40.5

2

95

Mean (Std Dev)

157.7 (99.1)

18.8 (10.3)

80 (21)

6.1 (2.5)

5.3 (2.9)

5.5 (36.3)

26.9 (14.9)

3.9 (2.3)

75.5 (27.1)

CI (95%)

82.7-204.9

11.9-25.7

65.9-94.1

4.3-7.7

3.3-7.2

-18.8-29.8

15.5-35.1

2.4-5.4

57.28-93.6

p-value

0.0007

 

0.3774

 

0.0007

 
  1. NA: not analyzed due to failed in multiplex amplification after UDG treatment