rs3738546

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP6_ModerateBS2

The NM_001103.4(ACTN2):​c.1740C>A​(p.Asn580Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000105 in 1,613,964 control chromosomes in the GnomAD database, with no homozygous occurrence. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N580S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

ACTN2
NM_001103.4 missense

Scores

2
17

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: -1.47
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 Likely_benign. Variant got -6 ACMG points.

BP6
Variant 1-236751553-C-A is Benign according to our data. Variant chr1-236751553-C-A is described in ClinVar as [Benign]. Clinvar id is 1478350.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High AC in GnomAd4 at 10 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ACTN2NM_001103.4 linkc.1740C>A p.Asn580Lys missense_variant Exon 15 of 21 ENST00000366578.6 NP_001094.1 P35609-1
ACTN2NM_001278343.2 linkc.1740C>A p.Asn580Lys missense_variant Exon 15 of 21 NP_001265272.1 P35609-2
ACTN2NR_184402.1 linkn.2112C>A non_coding_transcript_exon_variant Exon 17 of 23

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ACTN2ENST00000366578.6 linkc.1740C>A p.Asn580Lys missense_variant Exon 15 of 21 1 NM_001103.4 ENSP00000355537.4 P35609-1

Frequencies

GnomAD3 genomes
AF:
0.0000657
AC:
10
AN:
152144
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000655
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000278
AC:
7
AN:
251456
Hom.:
0
AF XY:
0.0000221
AC XY:
3
AN XY:
135908
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000202
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS 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:
0.00000479
AC:
7
AN:
1461820
Hom.:
0
Cov.:
31
AF XY:
0.00000275
AC XY:
2
AN XY:
727212
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000134
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000657
AC:
10
AN:
152144
Hom.:
0
Cov.:
32
AF XY:
0.000121
AC XY:
9
AN XY:
74316
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000655
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000642

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Primary familial hypertrophic cardiomyopathy;C2677338:Dilated cardiomyopathy 1AA Benign:1
Oct 28, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.15
BayesDel_addAF
Benign
-0.35
T
BayesDel_noAF
Benign
-0.45
CADD
Benign
7.6
DANN
Benign
0.96
DEOGEN2
Benign
0.30
.;.;T
Eigen
Benign
-0.88
Eigen_PC
Benign
-0.86
FATHMM_MKL
Benign
0.24
N
LIST_S2
Benign
0.84
T;T;T
M_CAP
Benign
0.017
T
MetaRNN
Uncertain
0.44
T;T;T
MetaSVM
Benign
-0.88
T
MutationAssessor
Benign
1.3
.;L;L
PrimateAI
Uncertain
0.68
T
PROVEAN
Benign
-0.42
.;N;N
REVEL
Benign
0.095
Sift
Benign
0.43
.;T;T
Sift4G
Benign
0.66
T;T;T
Polyphen
0.23
.;.;B
Vest4
0.73
MutPred
0.53
.;Gain of ubiquitination at N580 (P = 0.0238);Gain of ubiquitination at N580 (P = 0.0238);
MVP
0.75
MPC
0.47
ClinPred
0.098
T
GERP RS
-0.80
Varity_R
0.14
gMVP
0.52

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: rs3738546; hg19: chr1-236914853; API