rs2288602

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_001103.4(ACTN2):​c.1107+33A>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.626 in 1,607,840 control chromosomes in the GnomAD database, including 326,159 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.51 ( 23142 hom., cov: 33)
Exomes 𝑓: 0.64 ( 303017 hom. )

Consequence

ACTN2
NM_001103.4 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 0.494

Publications

8 publications found
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 Gene-Disease associations (from GenCC):
  • intrinsic cardiomyopathy
    Inheritance: AD Classification: DEFINITIVE, MODERATE Submitted by: Laboratory for Molecular Medicine, ClinGen
  • myopathy, congenital, with structured cores and z-line abnormalities
    Inheritance: AD Classification: STRONG, MODERATE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
  • dilated cardiomyopathy 1AA
    Inheritance: AD Classification: MODERATE, LIMITED Submitted by: PanelApp Australia, Labcorp Genetics (formerly Invitae), Ambry Genetics
  • familial isolated dilated cardiomyopathy
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • heart conduction disease
    Inheritance: AD Classification: LIMITED Submitted by: Genomics England PanelApp
  • myopathy, distal, 6, adult-onset, autosomal dominant
    Inheritance: AD, Unknown Classification: LIMITED Submitted by: Broad Center for Mendelian Genomics, Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.88).
BP6
Variant 1-236739565-A-C is Benign according to our data. Variant chr1-236739565-A-C is described in ClinVar as Benign. ClinVar VariationId is 671062.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.665 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ACTN2NM_001103.4 linkc.1107+33A>C intron_variant Intron 10 of 20 ENST00000366578.6 NP_001094.1 P35609-1
ACTN2NM_001278343.2 linkc.1107+33A>C intron_variant Intron 10 of 20 NP_001265272.1 P35609-2
ACTN2NR_184402.1 linkn.1479+33A>C intron_variant Intron 12 of 22

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ACTN2ENST00000366578.6 linkc.1107+33A>C intron_variant Intron 10 of 20 1 NM_001103.4 ENSP00000355537.4 P35609-1

Frequencies

GnomAD3 genomes
AF:
0.511
AC:
77757
AN:
152034
Hom.:
23143
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.193
Gnomad AMI
AF:
0.584
Gnomad AMR
AF:
0.500
Gnomad ASJ
AF:
0.629
Gnomad EAS
AF:
0.513
Gnomad SAS
AF:
0.536
Gnomad FIN
AF:
0.695
Gnomad MID
AF:
0.522
Gnomad NFE
AF:
0.670
Gnomad OTH
AF:
0.524
GnomAD2 exomes
AF:
0.580
AC:
137831
AN:
237546
AF XY:
0.591
show subpopulations
Gnomad AFR exome
AF:
0.179
Gnomad AMR exome
AF:
0.477
Gnomad ASJ exome
AF:
0.629
Gnomad EAS exome
AF:
0.507
Gnomad FIN exome
AF:
0.687
Gnomad NFE exome
AF:
0.666
Gnomad OTH exome
AF:
0.606
GnomAD4 exome
AF:
0.639
AC:
929464
AN:
1455690
Hom.:
303017
Cov.:
42
AF XY:
0.638
AC XY:
461454
AN XY:
723692
show subpopulations
African (AFR)
AF:
0.166
AC:
5537
AN:
33344
American (AMR)
AF:
0.475
AC:
20590
AN:
43322
Ashkenazi Jewish (ASJ)
AF:
0.624
AC:
16256
AN:
26040
East Asian (EAS)
AF:
0.528
AC:
20833
AN:
39426
South Asian (SAS)
AF:
0.550
AC:
47200
AN:
85772
European-Finnish (FIN)
AF:
0.691
AC:
36651
AN:
53050
Middle Eastern (MID)
AF:
0.526
AC:
3022
AN:
5750
European-Non Finnish (NFE)
AF:
0.670
AC:
743087
AN:
1108804
Other (OTH)
AF:
0.603
AC:
36288
AN:
60182
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.499
Heterozygous variant carriers
0
19485
38970
58454
77939
97424
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
19008
38016
57024
76032
95040
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.511
AC:
77767
AN:
152150
Hom.:
23142
Cov.:
33
AF XY:
0.513
AC XY:
38140
AN XY:
74374
show subpopulations
African (AFR)
AF:
0.193
AC:
8016
AN:
41526
American (AMR)
AF:
0.500
AC:
7657
AN:
15304
Ashkenazi Jewish (ASJ)
AF:
0.629
AC:
2185
AN:
3472
East Asian (EAS)
AF:
0.514
AC:
2653
AN:
5162
South Asian (SAS)
AF:
0.536
AC:
2584
AN:
4818
European-Finnish (FIN)
AF:
0.695
AC:
7356
AN:
10578
Middle Eastern (MID)
AF:
0.507
AC:
149
AN:
294
European-Non Finnish (NFE)
AF:
0.670
AC:
45526
AN:
67976
Other (OTH)
AF:
0.526
AC:
1110
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.500
Heterozygous variant carriers
0
1649
3299
4948
6598
8247
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
674
1348
2022
2696
3370
<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:
0.599
Hom.:
5394
Bravo
AF:
0.479
Asia WGS
AF:
0.473
AC:
1650
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
-
Breakthrough Genomics, Breakthrough Genomics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Jun 14, 2018
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. -

Myopathy, congenital, with structured cores and z-line abnormalities Benign:1
Jul 14, 2021
Genome-Nilou Lab
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
-0.88
CADD
Benign
1.7
DANN
Benign
0.66
PhyloP100
0.49
Mutation Taster
=100/0
polymorphism (auto)

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

Other links and lift over

dbSNP: rs2288602; hg19: chr1-236902865; COSMIC: COSV63973384; API