rs73471053

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_014141.6(CNTNAP2):​c.1119G>A​(p.Thr373Thr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0017 in 1,613,554 control chromosomes in the GnomAD database, including 40 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0089 ( 17 hom., cov: 32)
Exomes 𝑓: 0.00095 ( 23 hom. )

Consequence

CNTNAP2
NM_014141.6 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: -1.38

Publications

1 publications found
Variant links:
Genes affected
CNTNAP2 (HGNC:13830): (contactin associated protein 2) This gene encodes a member of the neurexin family which functions in the vertebrate nervous system as cell adhesion molecules and receptors. This protein, like other neurexin proteins, contains epidermal growth factor repeats and laminin G domains. In addition, it includes an F5/8 type C domain, discoidin/neuropilin- and fibrinogen-like domains, thrombospondin N-terminal-like domains and a putative PDZ binding site. This protein is localized at the juxtaparanodes of myelinated axons, and mediates interactions between neurons and glia during nervous system development and is also involved in localization of potassium channels within differentiating axons. This gene encompasses almost 1.5% of chromosome 7 and is one of the largest genes in the human genome. It is directly bound and regulated by forkhead box protein P2, a transcription factor related to speech and language development. This gene has been implicated in multiple neurodevelopmental disorders, including Gilles de la Tourette syndrome, schizophrenia, epilepsy, autism, ADHD and intellectual disability. [provided by RefSeq, Jul 2017]
CNTNAP2 Gene-Disease associations (from GenCC):
  • complex neurodevelopmental disorder
    Inheritance: AR, AD Classification: DEFINITIVE, NO_KNOWN Submitted by: ClinGen
  • cortical dysplasia-focal epilepsy syndrome
    Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE, SUPPORTIVE Submitted by: Illumina, Labcorp Genetics (formerly Invitae), Orphanet, G2P, Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.78).
BP6
Variant 7-147132280-G-A is Benign according to our data. Variant chr7-147132280-G-A is described in ClinVar as Benign. ClinVar VariationId is 128799.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-1.38 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00894 (1359/152056) while in subpopulation AFR AF = 0.0316 (1309/41462). AF 95% confidence interval is 0.0301. There are 17 homozygotes in GnomAd4. There are 632 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 17 AR,AD gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CNTNAP2NM_014141.6 linkc.1119G>A p.Thr373Thr synonymous_variant Exon 8 of 24 ENST00000361727.8 NP_054860.1 Q9UHC6-1A0A090N7T7B2RCH4
CNTNAP2XM_017011950.3 linkc.1119G>A p.Thr373Thr synonymous_variant Exon 8 of 14 XP_016867439.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CNTNAP2ENST00000361727.8 linkc.1119G>A p.Thr373Thr synonymous_variant Exon 8 of 24 1 NM_014141.6 ENSP00000354778.3 Q9UHC6-1

Frequencies

GnomAD3 genomes
AF:
0.00894
AC:
1358
AN:
151938
Hom.:
17
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0316
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00230
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.00481
GnomAD2 exomes
AF:
0.00229
AC:
575
AN:
251280
AF XY:
0.00151
show subpopulations
Gnomad AFR exome
AF:
0.0308
Gnomad AMR exome
AF:
0.00162
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000528
Gnomad OTH exome
AF:
0.00130
GnomAD4 exome
AF:
0.000949
AC:
1387
AN:
1461498
Hom.:
23
Cov.:
32
AF XY:
0.000855
AC XY:
622
AN XY:
727062
show subpopulations
African (AFR)
AF:
0.0338
AC:
1131
AN:
33446
American (AMR)
AF:
0.00159
AC:
71
AN:
44694
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26114
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39698
South Asian (SAS)
AF:
0.000197
AC:
17
AN:
86252
European-Finnish (FIN)
AF:
0.0000187
AC:
1
AN:
53414
Middle Eastern (MID)
AF:
0.00139
AC:
8
AN:
5762
European-Non Finnish (NFE)
AF:
0.0000225
AC:
25
AN:
1111756
Other (OTH)
AF:
0.00220
AC:
133
AN:
60362
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.481
Heterozygous variant carriers
0
82
164
245
327
409
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
38
76
114
152
190
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00894
AC:
1359
AN:
152056
Hom.:
17
Cov.:
32
AF XY:
0.00850
AC XY:
632
AN XY:
74326
show subpopulations
African (AFR)
AF:
0.0316
AC:
1309
AN:
41462
American (AMR)
AF:
0.00230
AC:
35
AN:
15242
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3464
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5164
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10604
Middle Eastern (MID)
AF:
0.00340
AC:
1
AN:
294
European-Non Finnish (NFE)
AF:
0.0000588
AC:
4
AN:
67986
Other (OTH)
AF:
0.00476
AC:
10
AN:
2100
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.506
Heterozygous variant carriers
0
68
136
204
272
340
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
20
40
60
80
100
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00448
Hom.:
6
Bravo
AF:
0.0103
Asia WGS
AF:
0.00260
AC:
10
AN:
3476
EpiCase
AF:
0.000164
EpiControl
AF:
0.000119

ClinVar

Significance: Benign
Submissions summary: Benign:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:3
-
PreventionGenetics, part of Exact Sciences
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Apr 04, 2013
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Apr 03, 2017
Genetic Services Laboratory, University of Chicago
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Cortical dysplasia-focal epilepsy syndrome Benign:1
Feb 02, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Inborn genetic diseases Benign:1
May 09, 2016
Ambry Genetics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.78
CADD
Benign
0.10
DANN
Benign
0.73
PhyloP100
-1.4
Mutation Taster
=100/0
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs73471053; hg19: chr7-146829372; API