Table 2 Rare loss-of-function variants in intolerant genes identified in ten singleton cases with CAS

From: A set of regulatory genes co-expressed in embryonic human brain is implicated in disrupted speech development

Proband

Chr

Base

Gene

Transcript

cDNA change

Protein change

Impact

RVIS

pLI

Phenotype previously associated with LoF

Classification

10

8

41806856

KAT6A

ENST00000265713

c.1599-56_1621del

p.?

Splice acceptor variant

3

1.00

Developmental delay, language delay, hypotonia, specific facial features [45]

Pathogenic

13

18

42531084

SETBP1

ENST00000282030

c.1781del

p.P594Lfs*36

Frameshift

10

1.00

Developmental delay and language delay [46]

Pathogenic

 

3

193380725

OPA1

ENST00000361908

c.2581C>T

p.R861*

Stop gained

10

0.99

Dominant optic atrophy

VUS

 

1

21923758

RAP1GAP

ENST00000542643

c.*35-1G>A

p.?

Splice acceptor variant

18

0.97

NA

VUS

14

8

77761747

ZFHX4

ENST00000521891

c.3646-1G>A

p.?

Splice acceptor variant

1

1.00

Developmental delay and specific facial features (gene deletions only) [48]

Pathogenic

15

22

40662274

TNRC6B

ENST00000454349

c.2040G>A

p.W680*

Stop gained

3

1.00

Autism spectrum disorder [47]

Pathogenic

18

16

14234400

MKL2

ENST00000571589

c.-63-1G>C

p.?

Splice acceptor variant

3

1.00

NA

Likely pathogenic

  1. Variants were classified according to recent guidelines [28]
  2. Chr chromosome, RVIS residual variation intolerance score, pLi probability of being loss-of-function intolerant, NA not available, VUS variant of uncertain significance