rs77165728

Variant names:

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS2

The NM_013266.4(CTNNA3):c.1900G>A(p.Glu634Lys) variant causes a missense change. The variant allele was found at a frequency of 0.000651 in 1,613,894 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00055 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00066 ( 0 hom. )

Consequence

CTNNA3
NM_013266.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:3

Conservation

PhyloP100: 3.62

Variant links:

Genes affected

CTNNA3 (HGNC:2511): (catenin alpha 3) This gene encodes a protein that belongs to the vinculin/alpha-catenin family. The encoded protein plays a role in cell-cell adhesion in muscle cells. Mutations in this gene are associated with arrhythmogenic right ventricular dysplasia, familial 13. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Mar 2014]

CTNNA3 links:

ENSG00000273360 (HGNC:):

ENSG00000273360 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.21713498).

BP6

Variant 10-66103234-C-T is Benign according to our data. Variant chr10-66103234-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 240866.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=2, Likely_benign=3}. Variant chr10-66103234-C-T is described in Lovd as [Likely_benign].

BS2

High AC in GnomAd4 at 84 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CTNNA3	NM_013266.4 link	c.1900G>A	p.Glu634Lys	missense_variant	Exon 14 of 18	ENST00000433211.7	NP_037398.2	Q9UI47-1A8K141

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CTNNA3	ENST00000433211.7 link	c.1900G>A	p.Glu634Lys	missense_variant	Exon 14 of 18	1	NM_013266.4	ENSP00000389714.1		Q9UI47-1

Frequencies

GnomAD3 genomes

AF:

0.000552

AC:

AN:

152160

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000121

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000851

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.000189

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000941

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000537

AC:

135

AN:

251302

Hom.:

AF XY:

0.000596

AC XY:

AN XY:

135814

show subpopulations

Gnomad AFR exome

AF:

0.000308

Gnomad AMR exome

AF:

0.000231

Gnomad ASJ exome

AF:

0.0000992

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000231

Gnomad NFE exome

AF:

0.000977

Gnomad OTH exome

AF:

0.000816

GnomAD4 exome

AF:

0.000661

AC:

966

AN:

1461616

Hom.:

Cov.:

AF XY:

0.000646

AC XY:

470

AN XY:

727126

show subpopulations

Gnomad4 AFR exome

AF:

0.000209

Gnomad4 AMR exome

AF:

0.000179

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.000131

Gnomad4 NFE exome

AF:

0.000816

Gnomad4 OTH exome

AF:

0.000613

GnomAD4 genome

AF:

0.000552

AC:

AN:

152278

Hom.:

Cov.:

AF XY:

0.000537

AC XY:

AN XY:

74454

show subpopulations

Gnomad4 AFR

AF:

0.000120

Gnomad4 AMR

AF:

0.000850

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.000189

Gnomad4 NFE

AF:

0.000941

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000715

Hom.:

Bravo

AF:

0.000491

TwinsUK

AF:

0.00135

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.000698

AC:

ExAC

AF:

0.000453

AC:

EpiCase

AF:

0.000818

EpiControl

AF:

0.00130

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:3

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not specified

Uncertain:1Benign:1

Sep 09, 2024

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Variant summary: CTNNA3 c.1900G>A (p.Glu634Lys) results in a conservative amino acid change in the encoded protein sequence. Three of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 0.00054 in 251302 control chromosomes, predominantly at a frequency of 0.00098 within the Non-Finnish European subpopulation in the gnomAD database. The observed variant frequency within Non-Finnish European control individuals in the gnomAD database is approximately 157 fold of the estimated maximal expected allele frequency for a pathogenic variant in CTNNA3 causing Arrhythmogenic Right Ventricular Dysplasia/Cardiomyopathy phenotype (6.3e-06). To our knowledge, no occurrence of c.1900G>A in individuals affected with Arrhythmogenic Right Ventricular Dysplasia/Cardiomyopathy and no experimental evidence demonstrating its impact on protein function have been reported. ClinVar contains an entry for this variant (Variation ID: 240866). Based on the evidence outlined above, the variant was classified as likely benign. -

Oct 19, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The p.E634K variant (also known as c.1900G>A), located in coding exon 13 of the CTNNA3 gene, results from a G to A substitution at nucleotide position 1900. The glutamic acid at codon 634 is replaced by lysine, an amino acid with similar properties. This amino acid position is conserved. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Arrhythmogenic right ventricular dysplasia 13

Uncertain:1Benign:1

Aug 01, 2017

Phosphorus, Inc.

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Dec 30, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not provided

Benign:1

Mar 06, 2017

Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.17

BayesDel_addAF

Benign

-0.26

BayesDel_noAF

Benign

-0.18

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.11

Eigen

Pathogenic

0.70

Eigen_PC

Pathogenic

0.69

FATHMM_MKL

Uncertain

0.83

LIST_S2

Uncertain

0.95

M_CAP

Benign

0.012

MetaRNN

Benign

0.22

MetaSVM

Benign

-0.78

MutationAssessor

Benign

1.3

PrimateAI

Uncertain

0.74

PROVEAN

Benign

-2.2

REVEL

Benign

0.19

Sift

Uncertain

0.016

Sift4G

Uncertain

0.012

Polyphen

0.98

Vest4

0.58

MVP

0.72

MPC

0.022

ClinPred

0.078

GERP RS

5.5

Varity_R

0.30

gMVP

0.41

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

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