rs150182164

Positions:

Variant summary

Our verdict is Benign. Variant got -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BS1BS2

The NM_001103.4(ACTN2):c.441G>A(p.Ser147=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00021 in 1,612,532 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 Likely benign (★★).

Frequency

Genomes: 𝑓 0.0010 ( 0 hom., cov: 34)

Exomes 𝑓: 0.00013 ( 0 hom. )

Consequence

ACTN2
NM_001103.4 synonymous

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:8

Conservation

PhyloP100: 0.834

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]

ACTN2 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=-0.39).

BP6

Variant 1-236720184-G-A is Benign according to our data. Variant chr1-236720184-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 136284.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr1-236720184-G-A is described in Lovd as [Benign].

BP7

Synonymous conserved (PhyloP=0.834 with no splicing effect.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.001 (153/152294) while in subpopulation AFR AF= 0.00347 (144/41556). AF 95% confidence interval is 0.003. There are 0 homozygotes in gnomad4. There are 80 alleles in male gnomad4 subpopulation. Median coverage is 34. This position pass quality control queck.

BS2

High AC in GnomAd4 at 153 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
ACTN2	NM_001103.4 linkuse as main transcript	c.441G>A	p.Ser147=	synonymous_variant	4/21	ENST00000366578.6
ACTN2	NM_001278343.2 linkuse as main transcript	c.441G>A	p.Ser147=	synonymous_variant	4/21
ACTN2	NR_184402.1 linkuse as main transcript	n.616G>A		non_coding_transcript_exon_variant	4/23

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ACTN2	ENST00000366578.6 linkuse as main transcript	c.441G>A	p.Ser147=	synonymous_variant	4/21	1	NM_001103.4	A1	P35609-1

Frequencies

GnomAD3 genomes

AF:

0.00101

AC:

153

AN:

152176

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00348

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000393

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:

0.0000147

Gnomad OTH

AF:

0.000957

GnomAD3 exomes

AF:

0.000322

AC:

AN:

251326

Hom.:

AF XY:

0.000317

AC XY:

AN XY:

135826

show subpopulations

Gnomad AFR exome

AF:

0.00326

Gnomad AMR exome

AF:

0.000260

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000163

Gnomad SAS exome

AF:

0.000425

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000880

Gnomad OTH exome

AF:

0.000326

GnomAD4 exome

AF:

0.000127

AC:

186

AN:

1460238

Hom.:

Cov.:

AF XY:

0.000128

AC XY:

AN XY:

726598

show subpopulations

Gnomad4 AFR exome

AF:

0.00338

Gnomad4 AMR exome

AF:

0.000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000756

Gnomad4 SAS exome

AF:

0.000302

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000135

Gnomad4 OTH exome

AF:

0.000298

GnomAD4 genome

AF:

0.00100

AC:

153

AN:

152294

Hom.:

Cov.:

AF XY:

0.00107

AC XY:

AN XY:

74476

show subpopulations

Gnomad4 AFR

AF:

0.00347

Gnomad4 AMR

AF:

0.000392

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.000947

Alfa

AF:

0.000540

Hom.:

Bravo

AF:

0.00107

Asia WGS

AF:

0.000577

AC:

AN:

3478

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:8

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:4

Benign, no assertion criteria provided	clinical testing	Clinical Genetics, Academic Medical Center	-	- -
Benign, criteria provided, single submitter	clinical testing	GeneDx	Mar 26, 2014	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. -
Benign, criteria provided, single submitter	clinical testing	Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine	Mar 19, 2012	p.Ser147Ser in Exon 04 of ACTN2: This variant is not expected to have clinical significance because it does not alter an amino acid residue, is not located within the splice consensus sequence and has been identified in 0.4% (14/3738) of African American chromosomes from a broad population by the NHLBI Exome Sequencing Project (http://evs.gs.washington.edu/EVS; dbSNP rs150182164). -
Benign, no assertion criteria provided	clinical testing	Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center	-	- -

Cardiomyopathy

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

CHEO Genetics Diagnostic Laboratory, Children's Hospital of Eastern Ontario

Jul 04, 2016

- -

Primary familial hypertrophic cardiomyopathy;C2677338:Dilated cardiomyopathy 1AA

Benign:1

Benign, criteria provided, single submitter

clinical testing

Invitae

Jan 25, 2024

- -

not provided

Benign:1

Benign, criteria provided, single submitter

clinical testing

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

Apr 15, 2016

Variant summary: Variant Summary: The c.441G.A (p.Ser147=) in ACTN2 gene is a synonymous change that involves a non-conserved nucleotide with a prediction of being a "disease-causing" by mutation taster. 4/5 programs in Alamut predict that this variant does not affect normal splicing, however no functional studies supporting this notion were published at the time of evaluation. The variant is present in the control population dataset of ExAC at an overall allele frequency of 0.036% (44/121320 chrs tested), mainly in individuals of African descent (0.32%; 33/10388 chrs tested). The observed frequency exceeds the maximum expected allele frequency for a pathogenic ACTN2 variant (0.0025%), suggesting that it is a common polymorphism. The variant of interest has not, to our knowledge, been reported in affected individuals via published reports. Variant was identified in one individual undergoing genetic screening for CMYO panel, who tested positive for a known pathogenic variant in TTR. Lastly, the variant has been reported as Benign by a reputable database/clinical laboratory. Taken together, the variant was classified as Benign. -

Cardiovascular phenotype

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

May 26, 2016

This alteration is classified as likely 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

-0.39

CADD

Benign

7.6

DANN

Benign

0.74

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