Genetic Variant CTNNA3:c.*1040T>C (chr10-65919290-A-G) – ACMG Classification: Benign (-12 pts)

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_StrongBA1

The NM_013266.4(CTNNA3):c.*1040T>C variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.275 in 152,098 control chromosomes in the GnomAD database, including 6,829 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 0.27 ( 6829 hom., cov: 32)

Failed GnomAD Quality Control

Consequence

CTNNA3
NM_013266.4 3_prime_UTR

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.794

Publications

10 publications found

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 Gene-Disease associations (from GenCC):

arrhythmogenic right ventricular cardiomyopathy
Inheritance: AD Classification: LIMITED Submitted by: ClinGen
arrhythmogenic right ventricular dysplasia 13
Inheritance: AD Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
congenital heart disease
Inheritance: Unknown Classification: NO_KNOWN Submitted by: ClinGen

CTNNA3 links:

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ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -12 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.78).

BA1

GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.357 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CTNNA3	NM_013266.4 link	c.*1040T>C		3_prime_UTR_variant	Exon 18 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.*1040T>C		3_prime_UTR_variant	Exon 18 of 18	1	NM_013266.4	ENSP00000389714.1		Q9UI47-1

Frequencies

GnomAD3 genomes

AF:

0.275

AC:

41765

AN:

151980

Hom.:

6830

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0941

Gnomad AMI

AF:

0.236

Gnomad AMR

AF:

0.289

Gnomad ASJ

AF:

0.243

Gnomad EAS

AF:

0.371

Gnomad SAS

AF:

0.339

Gnomad FIN

AF:

0.432

Gnomad MID

AF:

0.288

Gnomad NFE

AF:

0.347

Gnomad OTH

AF:

0.290

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AC:

AN:

Hom.:

Cov.:

AC XY:

AN XY:

African (AFR)

AC:

AN:

American (AMR)

AC:

AN:

Ashkenazi Jewish (ASJ)

AC:

AN:

East Asian (EAS)

AC:

AN:

South Asian (SAS)

AC:

AN:

European-Finnish (FIN)

AC:

AN:

Middle Eastern (MID)

AC:

AN:

European-Non Finnish (NFE)

AC:

AN:

Other (OTH)

AC:

AN:

GnomAD4 genome

AF:

0.275

AC:

41767

AN:

152098

Hom.:

6829

Cov.:

AF XY:

0.280

AC XY:

20776

AN XY:

74324

show subpopulations

African (AFR)

AF:

0.0940

AC:

3902

AN:

41522

American (AMR)

AF:

0.288

AC:

4408

AN:

15288

Ashkenazi Jewish (ASJ)

AF:

0.243

AC:

843

AN:

3466

East Asian (EAS)

AF:

0.371

AC:

1915

AN:

5164

South Asian (SAS)

AF:

0.339

AC:

1632

AN:

4812

European-Finnish (FIN)

AF:

0.432

AC:

4552

AN:

10548

Middle Eastern (MID)

AF:

0.299

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.347

AC:

23599

AN:

67978

Other (OTH)

AF:

0.290

AC:

613

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.500

Heterozygous variant carriers

1440

2880

4319

5759

7199

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

428

856

1284

1712

2140

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.315

Hom.:

24041

Bravo

AF:

0.254

Asia WGS

AF:

0.366

AC:

1270

AN:

3474

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.78

CADD

Benign

3.4

(source)

DANN

Benign

0.70

PhyloP100

0.79

Mutation Taster

=100/0

polymorphism (auto)

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over