rs60262757

Positions:

• chr10-67180317-G-A

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_Strong BP6_Very_Strong BP7 BS1 BS2

The NM_013266.4(CTNNA3):​c.1047C>T​(p.Asn349Asn) variant causes a splice region, synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00127 in 1,612,936 control chromosomes in the GnomAD database, including 31 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (★★).

• Frequency:
  • Genomes: 𝑓 0.0072 (20 hom., cov: 32)
  • Exomes 𝑓: 0.00065 (11 hom.)
• Consequence: CTNNA3 NM_013266.4 splice_region, synonymous
• Scores: Splicing: ADA: 0.0004306
• Clinical Significance: Benign criteria provided, multiple submitters, no conflicts B:8
• Conservation: PhyloP100: 0.351

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 (HGNC:):

ACMG classification

Verdict is Benign. Variant got -21 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.48).
• BP6: Variant 10-67180317-G-A is Benign according to our data. Variant chr10-67180317-G-A is described in ClinVar as [Benign]. Clinvar id is 240863.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr10-67180317-G-A is described in Lovd as [Benign].
• BP7: Synonymous conserved (PhyloP=0.351 with no splicing effect.
• BS1: Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00715 (1089/152236) while in subpopulation AFR AF= 0.0248 (1032/41560). AF 95% confidence interval is 0.0236. There are 20 homozygotes in gnomad4. There are 506 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
• BS2: High AC in GnomAd4 at 1089 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CTNNA3	NM_013266.4	c.1047C>T	p.Asn349Asn	splice_region_variant, synonymous_variant	7/18	ENST00000433211.7	NP_037398.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CTNNA3	ENST00000433211.7	c.1047C>T	p.Asn349Asn	splice_region_variant, synonymous_variant	7/18	1	NM_013266.4	ENSP00000389714.1

Frequencies

GnomAD3 genomes AF: 0.00715 AC: 1088 AN: 152118 Hom.: 20 Cov.: 32

Gnomad AFR AF: 0.0249

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00282

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000294

Gnomad OTH AF: 0.00575

GnomAD3 exomes AF: 0.00193 AC: 484 AN: 250542 Hom.: 8 AF XY: 0.00143 AC XY: 193 AN XY: 135424

Gnomad AFR exome AF: 0.0255

Gnomad AMR exome AF: 0.00162

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.000163

Gnomad SAS exome AF: 0.0000653

Gnomad FIN exome AF: 0.0000469

Gnomad NFE exome AF: 0.0000353

Gnomad OTH exome AF: 0.000490

GnomAD4 exome AF: 0.000653 AC: 954 AN: 1460700 Hom.: 11 Cov.: 31 AF XY: 0.000537 AC XY: 390 AN XY: 726700

Gnomad4 AFR exome AF: 0.0233

Gnomad4 AMR exome AF: 0.00159

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000252

Gnomad4 SAS exome AF: 0.0000927

Gnomad4 FIN exome AF: 0.0000189

Gnomad4 NFE exome AF: 0.0000117

Gnomad4 OTH exome AF: 0.00131

GnomAD4 genome AF: 0.00715 AC: 1089 AN: 152236 Hom.: 20 Cov.: 32 AF XY: 0.00680 AC XY: 506 AN XY: 74430

Gnomad4 AFR AF: 0.0248

Gnomad4 AMR AF: 0.00281

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000294

Gnomad4 OTH AF: 0.00569

Alfa AF: 0.00116 Hom.: 3

Bravo AF: 0.00799

Asia WGS AF: 0.000866 AC: 3 AN: 3478

EpiCase AF: 0.00

EpiControl AF: 0.0000593

ClinVar

Significance: Benign

Submissions summary: Benign:8

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not specified Benign:5

Benign, no assertion criteria provided	clinical testing	Genome Diagnostics Laboratory, University Medical Center Utrecht	-	- -
Benign, no assertion criteria provided	clinical testing	Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+	-	- -
Benign, no assertion criteria provided	clinical testing	Clinical Genetics, Academic Medical Center	-	- -
Benign, no assertion criteria provided	clinical testing	Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center	-	- -
Benign, criteria provided, single submitter	clinical testing	Women's Health and Genetics/Laboratory Corporation of America, LabCorp	May 26, 2024	- -

not provided Benign:2

Benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -
Benign, criteria provided, single submitter	clinical testing	GeneDx	Nov 12, 2018	- -

Arrhythmogenic right ventricular dysplasia 13 Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 29, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.48
CADD	Benign	0.44
DANN	Benign	0.76

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.00043
dbscSNV1_RF	Benign	0.11
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

Other links and lift over

dbSNP: rs60262757; hg19: chr10-68940075;