chr7-146845895-G-A

Variant names:

• chr7-146845895-G-A
• rs10500165
• NM_014141.6:c.402+5991G>A

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP4_Moderate BA1

The NM_014141.6(CNTNAP2):​c.402+5991G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0356 in 152,224 control chromosomes in the GnomAD database, including 124 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 0.036 (124 hom., cov: 33)
• Consequence: CNTNAP2 NM_014141.6 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.74
• Publications: 0 publications found

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

ACMG classification

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

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.22).
• BA1: GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.0517 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CNTNAP2	NM_014141.6	c.402+5991G>A		intron_variant	Intron 3 of 23	ENST00000361727.8	NP_054860.1
CNTNAP2	XM_017011950.3	c.402+5991G>A		intron_variant	Intron 3 of 13		XP_016867439.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CNTNAP2	ENST00000361727.8	c.402+5991G>A		intron_variant	Intron 3 of 23	1	NM_014141.6	ENSP00000354778.3

Frequencies

GnomAD3 genomes AF: 0.0357 AC: 5427 AN: 152106 Hom.: 124 Cov.: 33

Gnomad AFR AF: 0.00831

Gnomad AMI AF: 0.0484

Gnomad AMR AF: 0.0326

Gnomad ASJ AF: 0.0815

Gnomad EAS AF: 0.000193

Gnomad SAS AF: 0.0124

Gnomad FIN AF: 0.0452

Gnomad MID AF: 0.0633

Gnomad NFE AF: 0.0531

Gnomad OTH AF: 0.0397

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.0356 AC: 5425 AN: 152224 Hom.: 124 Cov.: 33 AF XY: 0.0345 AC XY: 2568 AN XY: 74432

African (AFR) AF: 0.00828 AC: 344 AN: 41532

American (AMR) AF: 0.0325 AC: 497 AN: 15284

Ashkenazi Jewish (ASJ) AF: 0.0815 AC: 283 AN: 3472

East Asian (EAS) AF: 0.000193 AC: 1 AN: 5180

South Asian (SAS) AF: 0.0120 AC: 58 AN: 4822

European-Finnish (FIN) AF: 0.0452 AC: 480 AN: 10608

Middle Eastern (MID) AF: 0.0680 AC: 20 AN: 294

European-Non Finnish (NFE) AF: 0.0532 AC: 3615 AN: 68008

Other (OTH) AF: 0.0393 AC: 83 AN: 2114

Alfa AF: 0.0409 Hom.: 29

Bravo AF: 0.0347

Asia WGS AF: 0.00577 AC: 20 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.22
CADD	Benign	19
DANN	Benign	0.69
PhyloP100		1.7
Mutation Taster		=100/0	polymorphism

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

Other links and lift over

dbSNP: rs10500165; hg19: chr7-146542987;