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Table 2 Clinical overview of KAT6A syndromic patients

From: Five new cases of syndromic intellectual disability due to KAT6A mutations: widening the molecular and clinical spectrum

 

This report

Trinhet al. 2018 [12]

Efthymiou et al. 2018 [15]

Alkhateeb et al. 2019 [14]

Kennedy et al. 2019 [13]

Total

Features

LTa

Mb

M

LT

LT

ET

LT

M

ET

LT

M

Overall

%

Protein change

2FS; 2NS

p.G359S

p.N1975S

p.S1113*

p.K1130 fs*

10FS; 7NS; 1del

19FS; 29NS

6MS

10FS; 7NS; 1del

13FS; 38NS

8MS

  

Gender (F/M)

2/2

0/1

1/1

0/1

0/1

8/10

25/23

2/4

8/10

27/27

3/6

38/43

 

Perinatal features

 Small for gestational age

2/4

0/1

2/2

NR

0/1

2/15

8/44

0/4

2/15

10/49

2/7

14/71

20

 Feeding difficulties/failure to thrive

4/4

1/1

1/1

1/1

1/1

10/18

40/46

4/6

10/18

46/52

6/8

62/78

79

 Neonatal complications (low Apgar scores, espiratory distress …)

1/4

0/1

NR

0/1

0/1

0/1

4/5

NR

0/1

5/11

NR

5/12

42

Neurological features

 Global developmental delay/Intellectual disability

4/4

1/1

2/2

1/1

1/1

18/18

44/44

4/4

18/18

50/50

7/7

75/75

100

 Speech delay/Absent speech

4/4

1/1

1/2

1/1

1/1

18/18

44/44

5/5

18/18

50/50

7/8

75/76

99

 Unstable/abnormal gait

4/4

1/1

0/2

1/1

1/1

 

1/3

NR

0/0

7/9

1/3

8/12

67

 Neonatal hypotonia

2/4

1/1

1/1

1/1

NR

8/18

40/47

5/6

8/18

43/52

7/8

58/78

74

 Seizures

2/4

1/1

1/2

1/1

0/1

2/17

2/47

1/6

2/17

5/53

3/9

10/79

13

 Sleep disturbance

1/4

1/1

NR

NR

NR

3/16

15/28

2/4

3/16

16/32

3/5

22/53

42

 Autistic behavior/behavioral problems

2/3

1/1

NR

NR

NR

4/15

8/18

3/3

4/15

10/21

4/4

18/40

45

Craniofacial features

 Microcephaly

4/4

1/1

2/2

1/1

0/1

1/18

20/45

1/15

1/18

25/51

1/5

27/74

36

 Frontal bossing/large forehead

1/4

1/1

NR

1/1

0/1

0/1

1/4

NR

0/1

3/10

1/1

4/12

33

 Bitemporal narrowing

1/4

0/1

0/2

1/1

0/1

NR

3/3

NR

NR

5/9

0/3

5/12

42

 Ear anomalies (large, low set, rotated, small earlobe …)

4/4

1/1

NR

1/1

NR

NR

9/11

0/1

NR

14/16

1/2

15/18

83

 Palpebral ptosis

1/4

0/1

1/2

0/1

NR

3/18

7/45

0/6

3/18

8/50

1/9

12/77

16

 Eye anomalies (proptosis, hypertelorism, deep set,)

4/4

1/1

2/2

1/1

1/1

NR

3/8

1/1

0/0

9/14

4/4

13/18

72

 Epicanthal folds

2/4

1/1

0/2

NR

0/1

NR

2/7

0/1

0/0

4/12

1/4

5/16

31

 Broad/bulbose nasal tip

4/4

0/1

2/2

1/1

0/1

16/18

35/40

3/5

16/18

40/46

5/8

61/72

85

 Thin upper lip

0/4

0/1

2/2

0/1

1/1

7/17

28/38

2/4

7/17

29/44

4/7

40/68

59

 Micrognathia

0/4

0/1

0/2

0/1

0/1

NR

6/12

0/1

0/0

6/18

0/4

6/22

27

Ocular problems

 Strabismus

4/4

0/1

2/2

NR

NR

9/17

27/47

1/5

9/17

31/51

3/8

43/76

57

 Visual defects

4/4

0/1

2/2

NR

NR

9/17

26/38

1/3

9/17

30/42

3/6

42/65

65

Other features

 Congenital heart defect

4/4

0/1

0/2

NR

0/1

5/18

32/46

0/6

5/18

36/51

0/9

41/78

53

 Reflux

2/4

0/1

NR

NR

NR

7/18

27/38

3/6

7/18

29/42

3/7

39/67

58

 Constipation

1/4

0/1

1/2

NR

NR

4/16

18/28

3/6

4/16

19/32

4/9

27/57

47

 Recurrent infections

1/4

0/1

NR

NR

NR

5/16

24/34

1/5

5/16

25/38

1/6

31/60

52

  1. AF Anterior fontanelle, CVI Cortical visual impairment, Del Deletion, ET Early truncating, FS Frameshift, GERD Gastroesophageal reflux disease, LT Late truncating, M Missense, NR not reported, NS nonsense, PDA Patent ductus arteriosus; Features present in more than 60% of the patients are indicated in bold with % of the total
  2. a Patients 1–3 and 5. b Patient 4