Variant 3-3040199-A-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_175607.3(CNTN4):c.2326A>G(p.Lys776Glu) variant causes a missense change. The variant allele was found at a frequency of 0.00000205 in 1,461,872 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 34)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

CNTN4
NM_175607.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.87

Variant links:

Genes affected

CNTN4 (HGNC:2174): (contactin 4) This gene encodes a member of the contactin family of immunoglobulins. Contactins are axon-associated cell adhesion molecules that function in neuronal network formation and plasticity. The encoded protein is a glycosylphosphatidylinositol-anchored neuronal membrane protein that may play a role in the formation of axon connections in the developing nervous system. Deletion or mutation of this gene may play a role in 3p deletion syndrome and autism spectrum disorders. Alternative splicing results in multiple transcript variants. [provided by RefSeq, May 2011]

CNTN4 links:

CNTN4-AS1 (HGNC:39985): (CNTN4 antisense RNA 1)

CNTN4-AS1 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CNTN4	NM_175607.3 linkuse as main transcript	c.2326A>G	p.Lys776Glu	missense_variant	20/25	ENST00000418658.6	NP_783200.1
CNTN4-AS1	NR_046554.1 linkuse as main transcript	n.474T>C		non_coding_transcript_exon_variant	4/4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CNTN4	ENST00000418658.6 linkuse as main transcript	c.2326A>G	p.Lys776Glu	missense_variant	20/25	5	NM_175607.3	ENSP00000396010	P1	Q8IWV2-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251458

Hom.:

AF XY:

0.00000736

AC XY:

AN XY:

135896

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

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:

0.00000879

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000205

AC:

AN:

1461872

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727236

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000270

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000824

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 24, 2023

The c.2326A>G (p.K776E) alteration is located in exon 19 (coding exon 17) of the CNTN4 gene. This alteration results from a A to G substitution at nucleotide position 2326, causing the lysine (K) at amino acid position 776 to be replaced by a glutamic acid (E). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.88

BayesDel_addAF

Pathogenic

0.17

BayesDel_noAF

Uncertain

0.0

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.58

D;D;D;.

Eigen

Pathogenic

0.77

Eigen_PC

Pathogenic

0.70

FATHMM_MKL

Uncertain

0.97

LIST_S2

Pathogenic

0.98

.;.;D;D

M_CAP

Benign

0.063

MetaRNN

Uncertain

0.70

D;D;D;D

MetaSVM

Uncertain

-0.0034

MutationAssessor

Pathogenic

3.5

M;M;M;.

MutationTaster

Benign

1.0

D;D;D;D;D;D

PrimateAI

Uncertain

0.68

PROVEAN

Uncertain

-3.1

D;D;D;D

REVEL

Uncertain

0.39

Sift

Uncertain

0.0010

D;D;D;D

Sift4G

Uncertain

0.0030

D;D;D;D

Polyphen

0.99

D;D;D;.

Vest4

0.67

MutPred

0.51

Loss of methylation at K776 (P = 0.0116);Loss of methylation at K776 (P = 0.0116);Loss of methylation at K776 (P = 0.0116);.;

MVP

0.71

MPC

0.53

ClinPred

0.99

GERP RS

5.0

Varity_R

0.73

gMVP

0.77

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

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