Table 1 Main clinical features in individuals with pathogenic or likely pathogenic variants in CTCF

From: CTCF variants in 39 individuals with a variable neurodevelopmental disorder broaden the mutational and clinical spectrum

 

LGD variants n = 8

Missense/in-frame variants n = 26

Published variantsan = 7

Total intragenic

Large deletionsbn = 5

IUGR/SGA

2/8

8/25

5/7

37%

0/5

Feeding difficulties/FTT

6/8

17/23

7/7

78%

3/5

Short stature

1/8

5/25

5/7

27%

2–3/5c

Microcephaly

3/7

7–9/22

7/7

52%

2–3/5c

Walking age

14–32 months

12–36 months

14 months to >3.5 years

 

23 months to >4.2 years

Age first words

12 months–4 years

12 mo—no speech

12 months to >3.5 years

 

18 months to >4.2 years

Unspecified DD/ID

0/8

7/25

1/7

20%

0/5

Mild/borderline DD/ID

5/8

9/25

3/7

42%

2/5

Moderate ID

3/8

6/25

1/7

25%

3/5

Severe ID

0/8

3/25

2/7

12%

0/5

Behavioral anomalies

5/6

19/23

4/7

77%

4/5

Seizures

1/8

3/23

0/7

10%

1/5

Cardiac defects

2/6

9/23

3/7

38%

0/5

Palatal anomalies

3/8

9/23

2/7

36%

0/5

Hearing loss

0/8

10/23

0/7

26%

1/5

Vision anomalies

6/8

9/19

6/7

61%

3/5

Recurrent infections

2/7

12/23

3/7

45%

1/5

  1. DD developmental delay,FTT failure to thrive,ID intellectual disability,IUGR intrauterine growth restriction, LGD likely gene-disruptive, SGA small for gestational age.
  2. aSee refs. 7,8,9.
  3. bTwo patients from this study plus three published ones.7,8,9,10
  4. cOne patient was treated with growth hormones.