rs79777576

Positions:

chr7-148415411-C-T

Variant summary

Our verdict is Benign. Variant got -18 ACMG points: 0P and 18B. BP4_ModerateBP6_Very_StrongBA1

The ENST00000361727.8(CNTNAP2):c.3797-6C>T variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00329 in 1,613,030 control chromosomes in the GnomAD database, including 134 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.017 ( 76 hom., cov: 33)

Exomes 𝑓: 0.0018 ( 58 hom. )

Consequence

CNTNAP2
ENST00000361727.8 splice_region, splice_polypyrimidine_tract, intron

Scores

Splicing: ADA: 0.00008090

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:8

Conservation

PhyloP100: 0.160

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 links:

LOC105375554 (HGNC:):

LOC105375554 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -18 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.46).

BP6

Variant 7-148415411-C-T is Benign according to our data. Variant chr7-148415411-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 128807.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr7-148415411-C-T is described in Lovd as [Benign].

BA1

GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0588 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CNTNAP2	NM_014141.6 linkuse as main transcript	c.3797-6C>T		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		ENST00000361727.8	NP_054860.1
LOC105375554	XR_928094.2 linkuse as main transcript	n.210-20719G>A		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CNTNAP2	ENST00000361727.8 linkuse as main transcript	c.3797-6C>T		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		1	NM_014141.6	ENSP00000354778	P1	Q9UHC6-1

Frequencies

GnomAD3 genomes

AF:

0.0174

AC:

2649

AN:

152198

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0609

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00576

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000147

Gnomad OTH

AF:

0.0129

GnomAD3 exomes

AF:

0.00477

AC:

1190

AN:

249268

Hom.:

AF XY:

0.00337

AC XY:

455

AN XY:

134908

show subpopulations

Gnomad AFR exome

AF:

0.0652

Gnomad AMR exome

AF:

0.00307

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000186

Gnomad OTH exome

AF:

0.00180

GnomAD4 exome

AF:

0.00182

AC:

2660

AN:

1460714

Hom.:

Cov.:

AF XY:

0.00152

AC XY:

1102

AN XY:

726680

show subpopulations

Gnomad4 AFR exome

AF:

0.0628

Gnomad4 AMR exome

AF:

0.00315

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000696

Gnomad4 FIN exome

AF:

0.0000191

Gnomad4 NFE exome

AF:

0.000131

Gnomad4 OTH exome

AF:

0.00416

GnomAD4 genome

AF:

0.0174

AC:

2651

AN:

152316

Hom.:

Cov.:

AF XY:

0.0166

AC XY:

1233

AN XY:

74488

show subpopulations

Gnomad4 AFR

AF:

0.0608

Gnomad4 AMR

AF:

0.00568

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000147

Gnomad4 OTH

AF:

0.0128

Alfa

AF:

0.00828

Hom.:

Bravo

AF:

0.0202

Asia WGS

AF:

0.00318

AC:

AN:

3478

EpiCase

AF:

0.000273

EpiControl

AF:

0.000533

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:8

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:5

Benign, no assertion criteria provided	clinical testing	Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center	-	- -
Benign, criteria provided, single submitter	clinical testing	Genetic Services Laboratory, University of Chicago	Sep 10, 2013	- -
Benign, criteria provided, single submitter	clinical testing	PreventionGenetics, part of Exact Sciences	-	- -
Benign, no assertion criteria provided	clinical testing	Genome Diagnostics Laboratory, University Medical Center Utrecht	-	- -
Benign, criteria provided, single submitter	clinical testing	GeneDx	May 24, 2012	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. -

Cortical dysplasia-focal epilepsy syndrome

Benign:2

Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Feb 01, 2024	- -
Likely benign, criteria provided, single submitter	clinical testing	Illumina Laboratory Services, Illumina	Jun 14, 2016	- -

Pitt-Hopkins-like syndrome

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jun 14, 2016

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.46

CADD

Benign

DANN

Benign

0.75

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.000081

dbscSNV1_RF

Benign

0.016

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over