rs551141480

Variant summary

Our verdict is Benign. The variant received -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS2

The NM_001103.4(ACTN2):​c.22G>A​(p.Val8Met) variant causes a missense change. The variant allele was found at a frequency of 0.0000492 in 1,566,538 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 (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V8L) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000052 ( 0 hom. )

Consequence

ACTN2
NM_001103.4 missense

Scores

2
2
14

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 5.05

Publications

2 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):
  • ACTN2-related cardiac and skeletal myopathy
    Inheritance: AD Classification: DEFINITIVE Submitted by: 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: Ambry Genetics, Labcorp Genetics (formerly Invitae)
  • intrinsic cardiomyopathy
    Inheritance: AD Classification: MODERATE Submitted by: Laboratory for Molecular Medicine
  • 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 -16 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.051699042).
BP6
Variant 1-236686695-G-A is Benign according to our data. Variant chr1-236686695-G-A is described in ClinVar as Likely_benign. ClinVar VariationId is 570006.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS2
High AC in GnomAdExome4 at 74 AD,Unknown gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001103.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ACTN2
NM_001103.4
MANE Select
c.22G>Ap.Val8Met
missense
Exon 1 of 21NP_001094.1P35609-1
ACTN2
NM_001278343.2
c.22G>Ap.Val8Met
missense
Exon 1 of 21NP_001265272.1P35609-2
ACTN2
NR_184402.1
n.197G>A
non_coding_transcript_exon
Exon 1 of 23

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ACTN2
ENST00000366578.6
TSL:1 MANE Select
c.22G>Ap.Val8Met
missense
Exon 1 of 21ENSP00000355537.4P35609-1
ACTN2
ENST00000542672.7
TSL:1
c.22G>Ap.Val8Met
missense
Exon 1 of 21ENSP00000443495.1P35609-2
ACTN2
ENST00000879537.1
c.22G>Ap.Val8Met
missense
Exon 1 of 22ENSP00000549596.1

Frequencies

GnomAD3 genomes
AF:
0.0000198
AC:
3
AN:
151802
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000622
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000961
AC:
21
AN:
218624
AF XY:
0.000175
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000523
AC:
74
AN:
1414628
Hom.:
0
Cov.:
31
AF XY:
0.0000938
AC XY:
66
AN XY:
703874
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
29214
American (AMR)
AF:
0.00
AC:
0
AN:
39942
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
24420
East Asian (EAS)
AF:
0.00
AC:
0
AN:
34320
South Asian (SAS)
AF:
0.000877
AC:
72
AN:
82092
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52836
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5500
European-Non Finnish (NFE)
AF:
9.19e-7
AC:
1
AN:
1088448
Other (OTH)
AF:
0.0000173
AC:
1
AN:
57856
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.482
Heterozygous variant carriers
0
4
8
13
17
21
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000197
AC:
3
AN:
151910
Hom.:
0
Cov.:
31
AF XY:
0.0000269
AC XY:
2
AN XY:
74266
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41520
American (AMR)
AF:
0.00
AC:
0
AN:
15262
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5142
South Asian (SAS)
AF:
0.000622
AC:
3
AN:
4822
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10478
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
292
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67904
Other (OTH)
AF:
0.00
AC:
0
AN:
2108
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000896
Hom.:
0
Bravo
AF:
0.0000113
ExAC
AF:
0.000116
AC:
14

ClinVar

ClinVar submissions
Significance:Likely benign
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
1
Cardiovascular phenotype (1)
-
-
1
not specified (1)
-
-
1
Primary familial hypertrophic cardiomyopathy;C2677338:Dilated cardiomyopathy 1AA (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.085
BayesDel_addAF
Benign
-0.31
T
BayesDel_noAF
Benign
-0.30
CADD
Uncertain
25
DANN
Uncertain
0.98
DEOGEN2
Benign
0.27
T
Eigen
Benign
-0.44
Eigen_PC
Benign
-0.26
FATHMM_MKL
Uncertain
0.87
D
LIST_S2
Benign
0.81
T
M_CAP
Pathogenic
0.58
D
MetaRNN
Benign
0.052
T
MetaSVM
Benign
-0.94
T
MutationAssessor
Benign
1.6
L
PhyloP100
5.1
PrimateAI
Pathogenic
0.83
D
PROVEAN
Benign
0.22
N
REVEL
Benign
0.20
Sift
Benign
0.47
T
Sift4G
Benign
0.36
T
Polyphen
0.0040
B
Vest4
0.099
MutPred
0.21
Loss of catalytic residue at V8 (P = 0.0203)
MVP
0.66
MPC
0.85
ClinPred
0.078
T
GERP RS
2.8
PromoterAI
0.042
Neutral
Varity_R
0.066
gMVP
0.56
Mutation Taster
=85/15
polymorphism

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: rs551141480; hg19: chr1-236849995; COSMIC: COSV63975552; API