Table 1 PDHA1 mutations in patients 1 and 2 and in the literature

From: Clinical manifestations in two patients with pyruvate dehydrogenase deficiency and long-term survival

Exon

Nucleotide change (amino acid change)

Sex

Mother

PDHc activity (%)

Phenotype

Reference

8

c.788G>A (p.R263Q)

M

NC

38

Leigh

Case 1

8

c.787C>G (p.R263G)

F

C

53

Dystonia

U(KDS)6

8

c.787C>G (p.R263G)

M

NC

50

Lactic acidosis and ataxia

U(KDS)6

8

c.787C>G (p.R263G)

M

NA

30

Lactic acidosis and ataxia

Wexler et al.20

8

c.787C>G (p.R263G)

M

C

77

Lactic acidosis and mental retardation

Wexler et al.21

8

c.787C>G (p.R263G)

M

NC

16

Mental retardation and ataxia

Chun et al.8

8

c.787C>G (p.R263G)

M

C

49

Mental retardation and ataxia

Chun et al.8

8

c.787C>G (p.R263G)

M

C

39

Mental retardation and ataxia

Chun et al.22

8

N.A (p.R263G)

M

C

50

Leigh

Briones et al.23

8

c.787C>G (p.R263G)

M

C

31

Leigh

Lissens et al.24

8

N.A (p.R263G)

M

NC

46

Leigh

Marsac et al.25

8

N.A (p.R263G)

M

NC

NA

Leigh

Marsac et al.25

8

c.787C>G (p.R263G)

M

C

NA

Leigh

Naito et al.26

5

c.433_435delTGT (p.C145del)

F

NC

NA

Neonatal lactic acidosis, necrosis of basal ganglia and periventricular leukomalacia

Case 2

5

c.422G>A (p.R141Q)

M

NA

32

Neonatal lactic acidosis and corpus callosum agenesis

U(BGK)6

5

c.429_431delAGG (p.G144del)

M

NA

16

Lactic acidosis

Ostergaard et al.27

  1. Abbreviations: C, carrier; F, female; M, male; NA, not available; NC, not a carrier.
  2. U(BGK,KDS) refers to unpublished patients with mutations identified by the research teams of Brown and colleagues or Kerr and colleagues.
  3. PDH complex (PDHc) activity was measured in patient fibroblasts.