rs34975493

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_001103.4(ACTN2):​c.2139G>A​(p.Thr713Thr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00601 in 1,614,082 control chromosomes in the GnomAD database, including 524 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. T713T) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.032 ( 255 hom., cov: 32)
Exomes 𝑓: 0.0033 ( 269 hom. )

Consequence

ACTN2
NM_001103.4 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:11

Conservation

PhyloP100: -0.595
Variant links:
Genes affected
ACTN2 (HGNC:164): (actinin alpha 2) Alpha actinins belong to the spectrin gene superfamily which represents a diverse group of cytoskeletal proteins, including the alpha and beta spectrins and dystrophins. Alpha actinin is an actin-binding protein with multiple roles in different cell types. In nonmuscle cells, the cytoskeletal isoform is found along microfilament bundles and adherens-type junctions, where it is involved in binding actin to the membrane. In contrast, skeletal, cardiac, and smooth muscle isoforms are localized to the Z-disc and analogous dense bodies, where they help anchor the myofibrillar actin filaments. This gene encodes a muscle-specific, alpha actinin isoform that is expressed in both skeletal and cardiac muscles. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, May 2013]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.52).
BP6
Variant 1-236755183-G-A is Benign according to our data. Variant chr1-236755183-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 35649.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr1-236755183-G-A is described in Lovd as [Benign].
BP7
Synonymous conserved (PhyloP=-0.595 with no splicing effect.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.109 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ACTN2NM_001103.4 linkc.2139G>A p.Thr713Thr synonymous_variant Exon 17 of 21 ENST00000366578.6 NP_001094.1 P35609-1
ACTN2NM_001278343.2 linkc.2139G>A p.Thr713Thr synonymous_variant Exon 17 of 21 NP_001265272.1 P35609-2
ACTN2NR_184402.1 linkn.2511G>A non_coding_transcript_exon_variant Exon 19 of 23

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ACTN2ENST00000366578.6 linkc.2139G>A p.Thr713Thr synonymous_variant Exon 17 of 21 1 NM_001103.4 ENSP00000355537.4 P35609-1

Frequencies

GnomAD3 genomes
AF:
0.0319
AC:
4850
AN:
152108
Hom.:
255
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.112
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0107
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000415
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00633
Gnomad NFE
AF:
0.000309
Gnomad OTH
AF:
0.0186
GnomAD3 exomes
AF:
0.00824
AC:
2067
AN:
250700
Hom.:
117
AF XY:
0.00606
AC XY:
822
AN XY:
135538
show subpopulations
Gnomad AFR exome
AF:
0.114
Gnomad AMR exome
AF:
0.00497
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000212
Gnomad OTH exome
AF:
0.00326
GnomAD4 exome
AF:
0.00331
AC:
4842
AN:
1461856
Hom.:
269
Cov.:
32
AF XY:
0.00288
AC XY:
2098
AN XY:
727224
show subpopulations
Gnomad4 AFR exome
AF:
0.120
Gnomad4 AMR exome
AF:
0.00539
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000243
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000129
Gnomad4 OTH exome
AF:
0.00662
GnomAD4 genome
AF:
0.0319
AC:
4855
AN:
152226
Hom.:
255
Cov.:
32
AF XY:
0.0307
AC XY:
2287
AN XY:
74418
show subpopulations
Gnomad4 AFR
AF:
0.111
Gnomad4 AMR
AF:
0.0107
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000415
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000309
Gnomad4 OTH
AF:
0.0184
Alfa
AF:
0.0143
Hom.:
50
Bravo
AF:
0.0371
Asia WGS
AF:
0.00549
AC:
19
AN:
3478
EpiCase
AF:
0.000491
EpiControl
AF:
0.000356

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:11
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:6
Dec 06, 2012
GeneDx
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

-
Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Jun 02, 2009
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
Clinical Genetics, Academic Medical Center
Significance: Benign
Review Status: no assertion criteria provided
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

- -

-
PreventionGenetics, part of Exact Sciences
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Cardiomyopathy Benign:1
Aug 18, 2011
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Primary familial hypertrophic cardiomyopathy;C2677338:Dilated cardiomyopathy 1AA Benign:1
Feb 04, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not provided Benign:1
-
Breakthrough Genomics, Breakthrough Genomics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: not provided

- -

Hypertrophic cardiomyopathy Benign:1
Jun 14, 2016
Illumina Laboratory Services, Illumina
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Cardiovascular phenotype Benign:1
Jul 14, 2015
Ambry Genetics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.52
CADD
Benign
0.73
DANN
Benign
0.78

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.

Other links and lift over

dbSNP: rs34975493; hg19: chr1-236918483; COSMIC: COSV104677744; API