rs1057523721

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001103.4(ACTN2):​c.19G>A​(p.Gly7Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000032 in 1,563,846 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. G7G) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)
Exomes 𝑓: 0.0000028 ( 0 hom. )

Consequence

ACTN2
NM_001103.4 missense

Scores

1
2
15

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 1.56

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):
  • 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: Uncertain_significance. The variant received 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.16750556).

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

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ACTN2
NM_001103.4
MANE Select
c.19G>Ap.Gly7Ser
missense
Exon 1 of 21NP_001094.1
ACTN2
NM_001278343.2
c.19G>Ap.Gly7Ser
missense
Exon 1 of 21NP_001265272.1
ACTN2
NR_184402.1
n.194G>A
non_coding_transcript_exon
Exon 1 of 23

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ACTN2
ENST00000366578.6
TSL:1 MANE Select
c.19G>Ap.Gly7Ser
missense
Exon 1 of 21ENSP00000355537.4
ACTN2
ENST00000542672.7
TSL:1
c.19G>Ap.Gly7Ser
missense
Exon 1 of 21ENSP00000443495.1
ACTN2
ENST00000879537.1
c.19G>Ap.Gly7Ser
missense
Exon 1 of 22ENSP00000549596.1

Frequencies

GnomAD3 genomes
AF:
0.00000660
AC:
1
AN:
151620
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:
0.000195
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000283
AC:
4
AN:
1412226
Hom.:
0
Cov.:
31
AF XY:
0.00000142
AC XY:
1
AN XY:
702706
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
29048
American (AMR)
AF:
0.00
AC:
0
AN:
39676
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
24346
East Asian (EAS)
AF:
0.00
AC:
0
AN:
34068
South Asian (SAS)
AF:
0.00
AC:
0
AN:
81930
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52784
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5490
European-Non Finnish (NFE)
AF:
0.00000184
AC:
2
AN:
1087234
Other (OTH)
AF:
0.0000347
AC:
2
AN:
57650
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.463
Heterozygous variant carriers
0
1
1
2
2
3
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:
0.00000660
AC:
1
AN:
151620
Hom.:
0
Cov.:
31
AF XY:
0.0000135
AC XY:
1
AN XY:
74042
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41330
American (AMR)
AF:
0.00
AC:
0
AN:
15240
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.000195
AC:
1
AN:
5132
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4814
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10450
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
310
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67886
Other (OTH)
AF:
0.00
AC:
0
AN:
2084
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
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:
0.00
Hom.:
0
Bravo
AF:
0.00000756

ClinVar

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

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.065
BayesDel_addAF
Benign
-0.18
T
BayesDel_noAF
Benign
-0.50
CADD
Benign
21
DANN
Uncertain
0.98
DEOGEN2
Benign
0.31
T
Eigen
Benign
-0.33
Eigen_PC
Benign
-0.15
FATHMM_MKL
Benign
0.58
D
LIST_S2
Benign
0.85
T
M_CAP
Pathogenic
0.72
D
MetaRNN
Benign
0.17
T
MetaSVM
Benign
-0.74
T
MutationAssessor
Benign
0.0
N
PhyloP100
1.6
PrimateAI
Uncertain
0.70
T
PROVEAN
Benign
-0.37
N
REVEL
Benign
0.19
Sift
Benign
0.30
T
Sift4G
Benign
0.76
T
Polyphen
0.0
B
Vest4
0.086
MutPred
0.28
Loss of loop (P = 0.0288)
MVP
0.54
MPC
0.84
ClinPred
0.22
T
GERP RS
3.7
PromoterAI
0.0023
Neutral
Varity_R
0.084
gMVP
0.55
Mutation Taster
=90/10
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: rs1057523721; hg19: chr1-236849992; API