Genetic Variant CTNNA3:p.Ala131Ala (chr10-67539569-C-T) – ACMG Classification: Benign (-19 pts)

Variant summary

Our verdict is Benign. Variant got -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BA1

The NM_013266.4(CTNNA3):c.393G>A(p.Ala131Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00397 in 1,613,772 control chromosomes in the GnomAD database, including 241 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.021 ( 136 hom., cov: 32)

Exomes 𝑓: 0.0023 ( 105 hom. )

Consequence

CTNNA3
NM_013266.4 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:7

Conservation

PhyloP100: 0.743

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:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -19 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.32).

BP6

Variant 10-67539569-C-T is Benign according to our data. Variant chr10-67539569-C-T is described in ClinVar as [Benign]. Clinvar id is 415373.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr10-67539569-C-T is described in Lovd as [Benign].

BP7

Synonymous conserved (PhyloP=0.743 with no splicing effect.

BA1

GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0688 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CTNNA3	NM_013266.4 link	c.393G>A	p.Ala131Ala	synonymous_variant	Exon 4 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.393G>A	p.Ala131Ala	synonymous_variant	Exon 4 of 18	1	NM_013266.4	ENSP00000389714.1		Q9UI47-1

Frequencies

GnomAD3 genomes

AF:

0.0205

AC:

3116

AN:

152104

Hom.:

135

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0709

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00832

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000414

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00318

Gnomad NFE

AF:

0.000118

Gnomad OTH

AF:

0.0196

GnomAD3 exomes

AF:

0.00569

AC:

1426

AN:

250660

Hom.:

AF XY:

0.00419

AC XY:

568

AN XY:

135460

show subpopulations

Gnomad AFR exome

AF:

0.0780

Gnomad AMR exome

AF:

0.00350

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000196

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000141

Gnomad OTH exome

AF:

0.00278

GnomAD4 exome

AF:

0.00225

AC:

3289

AN:

1461550

Hom.:

105

Cov.:

AF XY:

0.00192

AC XY:

1393

AN XY:

727078

show subpopulations

Gnomad4 AFR exome

AF:

0.0794

Gnomad4 AMR exome

AF:

0.00421

Gnomad4 ASJ exome

AF:

0.0000383

Gnomad4 EAS exome

AF:

0.0000504

Gnomad4 SAS exome

AF:

0.000209

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000738

Gnomad4 OTH exome

AF:

0.00528

GnomAD4 genome

AF:

0.0205

AC:

3124

AN:

152222

Hom.:

136

Cov.:

AF XY:

0.0194

AC XY:

1443

AN XY:

74426

show subpopulations

Gnomad4 AFR

AF:

0.0709

Gnomad4 AMR

AF:

0.00831

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000415

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000118

Gnomad4 OTH

AF:

0.0194

Alfa

AF:

0.00889

Hom.:

Bravo

AF:

0.0237

Asia WGS

AF:

0.00462

AC:

AN:

3478

EpiCase

AF:

0.000218

EpiControl

AF:

0.000119

ClinVar

Significance: Benign

Submissions summary: Benign:7

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:4

Apr 10, 2023

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

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center

Significance: Benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+

Significance: Benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Clinical Genetics, Academic Medical Center

Significance: Benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

not provided

Benign:2

Sep 16, 2018

GeneDx

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Breakthrough Genomics, Breakthrough Genomics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: not provided

- -

Arrhythmogenic right ventricular dysplasia 13

Benign:1

Feb 02, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.32

CADD

Benign

7.8

DANN

Benign

0.65

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