rs115307446

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_001614.5(ACTG1):​c.124-14G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00204 in 1,613,348 control chromosomes in the GnomAD database, including 56 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.010 ( 26 hom., cov: 32)
Exomes 𝑓: 0.0012 ( 30 hom. )

Consequence

ACTG1
NM_001614.5 intron

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: -1.91
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 -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.82).
BP6
Variant 17-81512156-C-T is Benign according to our data. Variant chr17-81512156-C-T is described in ClinVar as [Benign]. Clinvar id is 162722.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0103 (1569/152204) while in subpopulation AFR AF= 0.0361 (1497/41516). AF 95% confidence interval is 0.0345. There are 26 homozygotes in gnomad4. There are 732 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High AC in GnomAd4 at 1569 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ACTG1NM_001614.5 linkuse as main transcriptc.124-14G>A intron_variant ENST00000573283.7 NP_001605.1 P63261
ACTG1NM_001199954.3 linkuse as main transcriptc.124-14G>A intron_variant NP_001186883.1 P63261
ACTG1NR_037688.3 linkuse as main transcriptn.196-14G>A intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ACTG1ENST00000573283.7 linkuse as main transcriptc.124-14G>A intron_variant 5 NM_001614.5 ENSP00000458435.1 P63261

Frequencies

GnomAD3 genomes
AF:
0.0103
AC:
1567
AN:
152086
Hom.:
27
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0361
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00308
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000416
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.000118
Gnomad OTH
AF:
0.00670
GnomAD3 exomes
AF:
0.00273
AC:
684
AN:
250608
Hom.:
9
AF XY:
0.00197
AC XY:
267
AN XY:
135668
show subpopulations
Gnomad AFR exome
AF:
0.0387
Gnomad AMR exome
AF:
0.00104
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000465
Gnomad NFE exome
AF:
0.000177
Gnomad OTH exome
AF:
0.000490
GnomAD4 exome
AF:
0.00118
AC:
1724
AN:
1461144
Hom.:
30
Cov.:
37
AF XY:
0.00102
AC XY:
740
AN XY:
726920
show subpopulations
Gnomad4 AFR exome
AF:
0.0401
Gnomad4 AMR exome
AF:
0.00127
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000696
Gnomad4 FIN exome
AF:
0.0000190
Gnomad4 NFE exome
AF:
0.000157
Gnomad4 OTH exome
AF:
0.00222
GnomAD4 genome
AF:
0.0103
AC:
1569
AN:
152204
Hom.:
26
Cov.:
32
AF XY:
0.00984
AC XY:
732
AN XY:
74412
show subpopulations
Gnomad4 AFR
AF:
0.0361
Gnomad4 AMR
AF:
0.00307
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000416
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000118
Gnomad4 OTH
AF:
0.00663
Alfa
AF:
0.00543
Hom.:
2
Bravo
AF:
0.0117

ClinVar

Significance: Benign
Submissions summary: Benign:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingGeneDxMar 11, 2016This 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 specified Benign:1
Benign, criteria provided, single submitterclinical testingLaboratory for Molecular Medicine, Mass General Brigham Personalized MedicineMay 07, 2012124-14G>A in Intron 02 of ACTG1: This variant is not expected to have clinical s ignificance because it has been identified in 2.7% (100/3738) of African America n chromosomes from a broad population by the NHLBI Exome Sequencing Project (htt p://evs.gs.washington.edu/EVS; dbSNP rs115307446). -
Autosomal dominant nonsyndromic hearing loss 20 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- -
Baraitser-winter syndrome 2 Benign:1
Benign, criteria provided, single submitterclinical testingGenome-Nilou LabDec 05, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.82
CADD
Benign
0.81
DANN
Benign
0.81
RBP_binding_hub_radar
0.67
RBP_regulation_power_radar
1.8

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs115307446; hg19: chr17-79479182; API