NM_014141.6:c.3925G>A

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_014141.6(CNTNAP2):​c.3925G>A​(p.Ala1309Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000266 in 1,614,102 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. A1309A) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000023 ( 1 hom. )

Consequence

CNTNAP2
NM_014141.6 missense

Scores

3
15

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 5.09

Publications

0 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: Likely_benign. The variant received -2 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.07472378).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_014141.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CNTNAP2
NM_014141.6
MANE Select
c.3925G>Ap.Ala1309Thr
missense
Exon 24 of 24NP_054860.1

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CNTNAP2
ENST00000361727.8
TSL:1 MANE Select
c.3925G>Ap.Ala1309Thr
missense
Exon 24 of 24ENSP00000354778.3
CNTNAP2
ENST00000463592.3
TSL:1
c.256G>Ap.Ala86Thr
missense
Exon 4 of 4ENSP00000486292.1
CNTNAP2
ENST00000628930.2
TSL:2
c.1102G>Ap.Ala368Thr
missense
Exon 9 of 9ENSP00000487516.1

Frequencies

GnomAD3 genomes
AF:
0.0000591
AC:
9
AN:
152228
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000145
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000196
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000676
AC:
17
AN:
251402
AF XY:
0.0000442
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.000318
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000815
GnomAD4 exome
AF:
0.0000233
AC:
34
AN:
1461874
Hom.:
1
Cov.:
32
AF XY:
0.0000179
AC XY:
13
AN XY:
727238
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.000402
AC:
18
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86256
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53402
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00000899
AC:
10
AN:
1112012
Other (OTH)
AF:
0.0000993
AC:
6
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.455
Heterozygous variant carriers
0
2
4
6
8
10
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
2
4
6
8
10
<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:
0.0000591
AC:
9
AN:
152228
Hom.:
0
Cov.:
33
AF XY:
0.0000538
AC XY:
4
AN XY:
74362
show subpopulations
African (AFR)
AF:
0.000145
AC:
6
AN:
41460
American (AMR)
AF:
0.000196
AC:
3
AN:
15288
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5194
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10622
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68044
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.000131
Hom.:
0
Bravo
AF:
0.0000680
ExAC
AF:
0.0000824
AC:
10
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

ClinVar submissions as Germline

Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Cortical dysplasia-focal epilepsy syndrome (1)
-
1
-
Inborn genetic diseases (1)
-
1
-
not provided (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.26
BayesDel_addAF
Benign
-0.27
T
BayesDel_noAF
Benign
-0.32
CADD
Benign
23
DANN
Benign
0.94
DEOGEN2
Benign
0.051
T
Eigen
Benign
-0.25
Eigen_PC
Benign
-0.057
FATHMM_MKL
Uncertain
0.89
D
LIST_S2
Uncertain
0.94
D
M_CAP
Benign
0.019
T
MetaRNN
Benign
0.075
T
MetaSVM
Benign
-0.35
T
MutationAssessor
Benign
0.80
N
PhyloP100
5.1
PrimateAI
Uncertain
0.71
T
PROVEAN
Benign
-0.070
N
REVEL
Benign
0.073
Sift
Benign
0.49
T
Sift4G
Benign
0.88
T
Polyphen
0.068
B
Vest4
0.078
MVP
0.81
MPC
0.099
ClinPred
0.048
T
GERP RS
5.4
Varity_R
0.074
gMVP
0.79
Mutation Taster
=41/59
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
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: rs530757880; hg19: chr7-148112637; COSMIC: COSV100668192; API