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Table 2 Prenatal data of 63 fetuses with one or more metabolites results inconsistent with genetic results

From: Value of amniotic fluid homocysteine assay in prenatal diagnosis of combined methylmalonic acidemia and homocystinuria, cobalamin C type

No.

Variants of fetus (NM_015506)

Metabolites

Allele 1

Allele 2

Hcy (μmol/L)

C3 (μmol/L)

C3/C2

MMA (mmol/mol Cr)

MCA (mmol/mol Cr)

1

c.80A>G

c.658_660delAAG

13.32

2.42

0.30

1.55

0.51

2

c.568insT

c.467G>A

18.30

5.37

0.85

0

0.92

3

c.80A>G

c.481C>T

22.41

4.41

0.66

8.49

0

4

c.481C>T

Exon1 deletion

18.76

8.15

0.75

6.44

0

5

c.80A>G

c.609G>A

14.60

3.96

0.43

14.75

0.97

6

c.609G>A

c.656_658delAAG

13.20

10.06

0.74

5.58

0.45

7

c.394C>T

c.609G>A

12.50

6.95

0.63

0

0

8

c.609G>A

c.656_658delAAG

16.10

6.31

0.61

0

0.55

9

c.482G>A

c.609G>A

7.10

6.71

0.54

0

0.06

10

c.80A>G

c.609G>A

16.90

11.15

0.58

6.57

0

11

Exon1 deletion

c.599G>A

28.90

14.76

1.17

144.40

0

12

c.80A>G

c.658_660delAAG

15.10

2.30

0.33

3.64

0

13

c.455_457delCCC

c.658_660delAAG

17.00

11.73

0.63

0

0

14

c.609G>A

c.445_446delTG

21.40

9.19

0.83

13.31

0

15

c.428C>T

c.658_660delAAG

12.60

6.04

0.53

9.64

0

16

c.80A>G

c.609G>A

23.70

7.33

0.67

5.88

0

17

c.80A>G

c.609G>A

26.60

8.69

0.82

3.35

0

18

c.394C>T

c.445_446delTG

27.80

8.24

0.79

9.35

0

19

c.445_446delTG

c.609G>A

16.50

15.41

0.93

1.79

0

20

c.609G>A

c.658_660delAAG

12.00

5.67

0.41

7.53

0

21

c.57_58insT

c.609G>A

18.60

11.85

0.94

6.13

0

22

c.609G>A

Carry the same paternal allele as the proband

20.10

14.95

0.92

6.13

0

23

c.217C>T

c.609G>A

14.30

3.90

0.50

6.24

0

24

c.609G>A

c.626_627delTG

14.40

12.79

0.70

7.28

0

25

c.445_446delTG

c.609G>A

23.40

10.73

0.90

12.96

0

26

c.609G>A

c.658_660delAGA

17.00

10.67

0.74

7.78

0

27

c.394C>T

c.656_658delAGA

10.20

6.69

0.40

0

0

28

c.609G>A

c.658_660delAGA

17.30

7.53

0.52

6.82

0

29

c.80A>G

c.609G>A

21.80

6.11

0.49

7.09

0

30

c.567dupT

c.99delA

19.70

19.58

0.89

6.04

0

31

c.609G>A

c.658_660delAAG

19.80

10.38

0.58

3.85

0

32

c.80A>G

c.609G>A

11.80

5.70

0.32

0

0

33

c.567dupT

c.609G>A

21.20

11.71

0.64

10.64

0

34

c.482G>A

c.482G>A

6.62

2.61

0.43

5.95

0.39

35

c.445_446delTG

c.609G>A

19.19

3.54

0.68

3.2

1.51

36

c.482G>A

c.482G>A

8.90

2.09

0.28

4.01

0

37

c.609G>A

c.609G>A

20.00

17.65

0.79

0

0

38

c.609G>A

c.609G>A

19.00

9.91

0.60

5.71

0

39

c.609G>A

c.658_660delAAG

22.60

6.81

0.69

2.37

0

40

c.609G>A

c.609G>A

16.40

7.87

0.80

5.07

0

41

c.609G>A

c.609G>A

19.67

9.25

0.80

14.95

0

42

c.609G>A

c.609G>A

17.90

6.85

0.69

37.16

0

43

c.609G>A

c.658_660delAAG

21.60

11.48

0.87

6.22

0

44

c.609G>A

c.658_660delAAG

20.70

13.30

0.86

6.65

0

45

c.217C>T

–

4.10

0.72

0.10

0

0

46

c.658_660delAAG

–

4.40

1.46

0.15

0

0.16

47

c.658_660delAAG

–

4.37

0.40

0.09

0.91

0.08

48

c.609G>A

–

4.42

1.70

0.13

0

0

49

c.656_658delAGA

–

5.70

1.05

0.09

0

0.2

50

c.658_660delAAG

–

5.80

0.73

0.07

0

0

51

c.658_660delAAG

–

4.30

0.52

0.08

0

0

52

–

–

5.50

1.47

0.09

0

0

53

c.80A>G

–

5.50

0.97

0.16

0

0

54

c.609G>A

–

5.10

2.67

0.13

0

0

55

–

–

4.30

1.32

0.14

0

0

56

–

–

4.10

3.07

0.16

0

0

57

c.609G>A

–

4.20

2.99

0.08

0

0

58

–

–

5.80

1.15

0.11

0

0

59

–

–

1.55

0.55

0.08

1.44

0

60

–

–

2.60

0.60

0.11

1.06

0

61

c.609G>A

–

2.80

2.62

0.11

1.16

0

62

c.658_660delAAG

–

2.20

0.97

0.05

3.65

0

63

c.609G>A

–

2.00

1.02

0.09

0

0.56

 

Reference range

 

1.10–4.10

0.30–4.00

0.05–0.25

0.00–1.00

0.00–0.50

  1. Bold parts, metabolite results are inconsistent with the genetic results
  2. Hcy homocysteine, C3 propionylcarnitine, C2 acetylcarnitine, MMA methylmalonic acid, MCA methylcitric acid