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Table 1 The clinical features of the twenty subjects in this study

From: Correlation between toxic organic acid fluctuations and neurodevelopment in patients with methylmalonic acidemia

Case no

Gendera

Ageb

(years)

Subtype

Age at LTc (years)

Zygosityd

Mutation type

1

F

8

B12-R

–

H

MMAB: c.523G > A,p.Gly175Ter

2

M

0.33

B12-R

–

H

MMAB: c.523G > A,p.Gly175Ter

3

M

10

B12-R

–

CH

MMACHC:c.609G > A,p.Trp203Ter

MMACHC:c.658_660delAAG,p.Lys220del

4

M

7

B12-R

–

CH

MMACHC:c.228_231delTGAC,p.Asp77Glnfs*22

MMACHC: c.394C > T,p.Arg132Ter

5

F

3

B12-R

–

CH

MMACHC:c.609G > A,p.Trp203Ter

MMACHC:c.626dupT,p.Thr210Aspfs*35

6

M

1

B12-R

–

CH

MMACHC:c.482G > A, p.Arg161Gln

MMACHC:c.398_399del,p.Gln133Argfs*4

7

F

20

B12-NR

–

CH

MMUT:c.919 T > C,p.Phe307Leu

MMUT:c.1280G > A,p.Gly427Asp

8

F

17

B12-NR

6.75

H

MMUT:c.1280G > A,p.Gly427Asp

9

M

14

B12-NR

0.67

H

MMUT:c.982C > T,p.Leu328Phe

10

F

11

B12-NR

0.67

CH

MMUT:c.454C > T,p.Arg152Ter

MMUT:c.1677-1G > A

11

F

9

B12-NR

1

CH

MMUT:c.1159 A > C,p.Thr387Ile

MMUT:c.1630_1631 GG > TA,p.Gly544Ter

12

M

9

B12-NR

0.92

CH

MMUT:c.729_730insTT,p.Asp244Leufs*39

MMUT:c.982C > T,p.Leu328Phe

13

F

8

B12-NR

1.17

H

MMUT:c.1280G > A,p.Gly427Asp

14

M

6

B12-NR

–

CH

MMUT:c.1105C > T,p.Arg369Cys

MMUT:c.1280G > A,p.Gly427Asp

15

F

4

B12-NR

–

CH

MMUT:c.1280G > A,p.Gly427Asp

MMUT:c.323G > A, p.Arg108His

16

M

2

B12-NR

0.5

CH

MMUT:c.1280G > A,p.Gly427Asp

MMUT:c.1782_1786delTAAAG,p.Ser594Argfs*11

17

F

2

B12-NR

0.5

CH

MMUT:c.1280G > A,p.Gly427Asp

MMUT:c.1782_1786delTAAAG,p.Ser594Argfs*11

18

F

2

B12-NR

–

CH

MMUT:c.1192A > C,p.Thr398Pro

MMUT:c.454C > T,p.Arg152Ter

19

M

2

B12-NR

–

CH

MMUT:c.1655C > T,p.Ala552Val

MMUT:c.1655C > T,p.Ala552Val

20

F

0.33

B12-NR

–

CH

MMUT: c.1106G > A,p.Arg369His

MMUT:c.1677-1G > A

  1. aF, female; M, male; bAge at data collection; cLT, liver transplantation; dH, homozygous; CH, compound heterozygous