rs6970064

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP4_ModerateBA1

The NM_014141.6(CNTNAP2):​c.1777+19232G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.398 in 150,666 control chromosomes in the GnomAD database, including 12,583 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.40 ( 12583 hom., cov: 32)

Consequence

CNTNAP2
NM_014141.6 intron

Scores

2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.08
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]

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ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -10 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.27).
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.436 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CNTNAP2NM_014141.6 linkc.1777+19232G>A intron_variant Intron 11 of 23 ENST00000361727.8 NP_054860.1 Q9UHC6-1A0A090N7T7B2RCH4
CNTNAP2XM_017011950.3 linkc.1777+19232G>A intron_variant Intron 11 of 13 XP_016867439.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CNTNAP2ENST00000361727.8 linkc.1777+19232G>A intron_variant Intron 11 of 23 1 NM_014141.6 ENSP00000354778.3 Q9UHC6-1
CNTNAP2ENST00000636870.1 linkn.1639+19232G>A intron_variant Intron 9 of 21 5
CNTNAP2ENST00000637825.1 linkn.1260+19232G>A intron_variant Intron 8 of 13 5
CNTNAP2ENST00000638117.1 linkn.1680+19232G>A intron_variant Intron 10 of 12 5

Frequencies

GnomAD3 genomes
AF:
0.399
AC:
60010
AN:
150552
Hom.:
12581
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.442
Gnomad AMI
AF:
0.376
Gnomad AMR
AF:
0.293
Gnomad ASJ
AF:
0.407
Gnomad EAS
AF:
0.145
Gnomad SAS
AF:
0.227
Gnomad FIN
AF:
0.375
Gnomad MID
AF:
0.345
Gnomad NFE
AF:
0.433
Gnomad OTH
AF:
0.372
We have no GnomAD4 exomes data on this position. Probably position not covered by the project.
GnomAD4 genome
AF:
0.398
AC:
60030
AN:
150666
Hom.:
12583
Cov.:
32
AF XY:
0.389
AC XY:
28684
AN XY:
73654
show subpopulations
African (AFR)
AF:
0.442
AC:
17745
AN:
40182
American (AMR)
AF:
0.292
AC:
4442
AN:
15216
Ashkenazi Jewish (ASJ)
AF:
0.407
AC:
1412
AN:
3470
East Asian (EAS)
AF:
0.144
AC:
748
AN:
5180
South Asian (SAS)
AF:
0.228
AC:
1100
AN:
4828
European-Finnish (FIN)
AF:
0.375
AC:
3951
AN:
10542
Middle Eastern (MID)
AF:
0.330
AC:
95
AN:
288
European-Non Finnish (NFE)
AF:
0.433
AC:
29423
AN:
67956
Other (OTH)
AF:
0.369
AC:
771
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.492
Heterozygous variant carriers
0
1739
3477
5216
6954
8693
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
558
1116
1674
2232
2790
<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:
0.365
Hom.:
2692
Bravo
AF:
0.400
Asia WGS
AF:
0.216
AC:
756
AN:
3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.27
CADD
Benign
20
DANN
Benign
0.59
PhyloP100
1.1
Mutation Taster
=100/0
polymorphism (auto)

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: rs6970064; hg19: chr7-147202365; API