rs1139406

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_001614.5(ACTG1):ā€‹c.1026T>Cā€‹(p.Gly342=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0188 in 1,612,654 control chromosomes in the GnomAD database, including 637 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (ā˜…ā˜…).

Frequency

Genomes: š‘“ 0.041 ( 222 hom., cov: 32)
Exomes š‘“: 0.017 ( 415 hom. )

Consequence

ACTG1
NM_001614.5 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:10

Conservation

PhyloP100: -3.01
Variant links:
Genes affected
ACTG1 (HGNC:144): (actin gamma 1) Actins are highly conserved proteins that are involved in various types of cell motility and in maintenance of the cytoskeleton. Three main groups of actin isoforms have been identified in vertebrate animals: alpha, beta, and gamma. The alpha actins are found in muscle tissues and are a major constituent of the contractile apparatus. The beta and gamma actins co-exist in most cell types as components of the cytoskeleton and as mediators of internal cell motility. Actin gamma 1, encoded by this gene, is a cytoplasmic actin found in all cell types. Mutations in this gene are associated with DFNA20/26, a subtype of autosomal dominant non-syndromic sensorineural progressive hearing loss and also with Baraitser-Winter syndrome. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2017]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.83).
BP6
Variant 17-81510792-A-G is Benign according to our data. Variant chr17-81510792-A-G is described in ClinVar as [Benign]. Clinvar id is 128268.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr17-81510792-A-G is described in Lovd as [Likely_benign]. Variant chr17-81510792-A-G is described in Lovd as [Benign].
BP7
Synonymous conserved (PhyloP=-3.01 with no splicing effect.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0988 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ACTG1NM_001614.5 linkuse as main transcriptc.1026T>C p.Gly342= synonymous_variant 6/6 ENST00000573283.7 NP_001605.1
ACTG1NM_001199954.3 linkuse as main transcriptc.1026T>C p.Gly342= synonymous_variant 6/6 NP_001186883.1
ACTG1NR_037688.3 linkuse as main transcriptn.1098T>C non_coding_transcript_exon_variant 6/7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ACTG1ENST00000573283.7 linkuse as main transcriptc.1026T>C p.Gly342= synonymous_variant 6/65 NM_001614.5 ENSP00000458435 P4

Frequencies

GnomAD3 genomes
AF:
0.0405
AC:
6115
AN:
150880
Hom.:
224
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.101
Gnomad AMI
AF:
0.00333
Gnomad AMR
AF:
0.0302
Gnomad ASJ
AF:
0.0516
Gnomad EAS
AF:
0.0339
Gnomad SAS
AF:
0.0172
Gnomad FIN
AF:
0.00548
Gnomad MID
AF:
0.0128
Gnomad NFE
AF:
0.0136
Gnomad OTH
AF:
0.0417
GnomAD3 exomes
AF:
0.0225
AC:
5645
AN:
251294
Hom.:
138
AF XY:
0.0208
AC XY:
2824
AN XY:
135874
show subpopulations
Gnomad AFR exome
AF:
0.0999
Gnomad AMR exome
AF:
0.0194
Gnomad ASJ exome
AF:
0.0485
Gnomad EAS exome
AF:
0.0302
Gnomad SAS exome
AF:
0.0170
Gnomad FIN exome
AF:
0.00638
Gnomad NFE exome
AF:
0.0134
Gnomad OTH exome
AF:
0.0210
GnomAD4 exome
AF:
0.0165
AC:
24137
AN:
1461654
Hom.:
415
Cov.:
30
AF XY:
0.0163
AC XY:
11845
AN XY:
727138
show subpopulations
Gnomad4 AFR exome
AF:
0.0991
Gnomad4 AMR exome
AF:
0.0199
Gnomad4 ASJ exome
AF:
0.0499
Gnomad4 EAS exome
AF:
0.0223
Gnomad4 SAS exome
AF:
0.0170
Gnomad4 FIN exome
AF:
0.00573
Gnomad4 NFE exome
AF:
0.0129
Gnomad4 OTH exome
AF:
0.0237
GnomAD4 genome
AF:
0.0406
AC:
6124
AN:
151000
Hom.:
222
Cov.:
32
AF XY:
0.0402
AC XY:
2965
AN XY:
73820
show subpopulations
Gnomad4 AFR
AF:
0.101
Gnomad4 AMR
AF:
0.0302
Gnomad4 ASJ
AF:
0.0516
Gnomad4 EAS
AF:
0.0338
Gnomad4 SAS
AF:
0.0170
Gnomad4 FIN
AF:
0.00548
Gnomad4 NFE
AF:
0.0136
Gnomad4 OTH
AF:
0.0417
Alfa
AF:
0.0272
Hom.:
54
Bravo
AF:
0.0439
Asia WGS
AF:
0.0400
AC:
137
AN:
3478
EpiCase
AF:
0.0162
EpiControl
AF:
0.0158

ClinVar

Significance: Benign
Submissions summary: Benign:10
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:4
Benign, criteria provided, single submitterclinical testingLaboratory for Molecular Medicine, Mass General Brigham Personalized MedicineMay 07, 2012Gly342Gly in Exon 06 of ACTG1: This variant is not expected to have clinical si gnificance because it does not alter an amino acid residue, is not located withi n the splice consensus sequence, and has been identified in 8.3% (311/3738) of A frican American chromosomes from a broad population by the NHLBI Exome Sequencin g Project (http://evs.gs.washington.edu/EVS; dbSNP rs1139406). -
Benign, no assertion criteria providedclinical testingJoint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+-- -
Benign, criteria provided, single submitterclinical testingGenetic Services Laboratory, University of ChicagoFeb 20, 2013- -
Benign, criteria provided, single submitterclinical testingGeneDxNov 13, 2015This 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. -
not provided Benign:3
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingAthena DiagnosticsMay 23, 2018- -
Likely benign, no assertion criteria providedclinical testingClinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center-- -
Autosomal dominant nonsyndromic hearing loss 20 Benign:1
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabDec 05, 2021- -
Baraitser-winter syndrome 2 Benign:1
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabDec 05, 2021- -
Autosomal dominant nonsyndromic hearing loss 20;C3281235:Baraitser-winter syndrome 2 Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpFeb 01, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.83
CADD
Benign
0.62
DANN
Benign
0.51
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

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: rs1139406; hg19: chr17-79477818; API