17-81511306-G-A

Position:

chr17-81511306-G-A

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_001614.5(ACTG1):c.684C>T(p.Ala228=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00199 in 1,613,756 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0019 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0020 ( 3 hom. )

Consequence

ACTG1
NM_001614.5 synonymous

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:9

Conservation

PhyloP100: 0.930

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]

ACTG1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.5).

BP6

Variant 17-81511306-G-A is Benign according to our data. Variant chr17-81511306-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 178286.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr17-81511306-G-A is described in Lovd as [Likely_benign].

BP7

Synonymous conserved (PhyloP=0.93 with no splicing effect.

BS1

Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.00188 (286/152340) while in subpopulation NFE AF= 0.00241 (164/68028). AF 95% confidence interval is 0.00211. There are 0 homozygotes in gnomad4. There are 139 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

BS2

High AC in GnomAd4 at 286 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
ACTG1	NM_001614.5 linkuse as main transcript	c.684C>T	p.Ala228=	synonymous_variant	4/6	ENST00000573283.7	NP_001605.1
ACTG1	NM_001199954.3 linkuse as main transcript	c.684C>T	p.Ala228=	synonymous_variant	4/6		NP_001186883.1
ACTG1	NR_037688.3 linkuse as main transcript	n.756C>T		non_coding_transcript_exon_variant	4/7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ACTG1	ENST00000573283.7 linkuse as main transcript	c.684C>T	p.Ala228=	synonymous_variant	4/6	5	NM_001614.5	ENSP00000458435	P4

Frequencies

GnomAD3 genomes

AF:

0.00187

AC:

285

AN:

152222

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00135

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000393

Gnomad ASJ

AF:

0.000288

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.00207

Gnomad FIN

AF:

0.00433

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00240

Gnomad OTH

AF:

0.000955

GnomAD3 exomes

AF:

0.00220

AC:

551

AN:

250280

Hom.:

AF XY:

0.00243

AC XY:

329

AN XY:

135586

show subpopulations

Gnomad AFR exome

AF:

0.000693

Gnomad AMR exome

AF:

0.000665

Gnomad ASJ exome

AF:

0.000199

Gnomad EAS exome

AF:

0.000163

Gnomad SAS exome

AF:

0.00268

Gnomad FIN exome

AF:

0.00559

Gnomad NFE exome

AF:

0.00262

Gnomad OTH exome

AF:

0.00212

GnomAD4 exome

AF:

0.00200

AC:

2930

AN:

1461416

Hom.:

Cov.:

AF XY:

0.00197

AC XY:

1433

AN XY:

727018

show subpopulations

Gnomad4 AFR exome

AF:

0.00119

Gnomad4 AMR exome

AF:

0.000738

Gnomad4 ASJ exome

AF:

0.000153

Gnomad4 EAS exome

AF:

0.000504

Gnomad4 SAS exome

AF:

0.00239

Gnomad4 FIN exome

AF:

0.00608

Gnomad4 NFE exome

AF:

0.00197

Gnomad4 OTH exome

AF:

0.00171

GnomAD4 genome

AF:

0.00188

AC:

286

AN:

152340

Hom.:

Cov.:

AF XY:

0.00187

AC XY:

139

AN XY:

74492

show subpopulations

Gnomad4 AFR

AF:

0.00135

Gnomad4 AMR

AF:

0.000392

Gnomad4 ASJ

AF:

0.000288

Gnomad4 EAS

AF:

0.000193

Gnomad4 SAS

AF:

0.00207

Gnomad4 FIN

AF:

0.00433

Gnomad4 NFE

AF:

0.00241

Gnomad4 OTH

AF:

0.000945

Alfa

AF:

0.00169

Hom.:

Bravo

AF:

0.00132

Asia WGS

AF:

0.00173

AC:

AN:

3478

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:9

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:3

Benign, criteria provided, single submitter	clinical testing	GeneDx	Feb 13, 2017	This 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. -
Benign, criteria provided, single submitter	clinical testing	Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine	Jan 26, 2015	p.Ala228Ala in exon 04 of ACTG1: This variant is not expected to have clinical s ignificance because it does not alter an amino acid residue, is not located with in the splice consensus sequence, and has been identified in 0.3% (228/71802) of European chromosomes by the Exome Aggregation Consortium (ExAC, http://exac.bro adinstitute.org; dbSNP rs143125497). -
Likely benign, criteria provided, single submitter	clinical testing	Genetic Services Laboratory, University of Chicago	Aug 07, 2017	- -

not provided

Benign:3

Likely benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -
Benign, criteria provided, single submitter	clinical testing	ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories	Jul 22, 2019	- -
Likely benign, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	Aug 01, 2024	ACTG1: BP4, BP7, BS1 -

Autosomal dominant nonsyndromic hearing loss 20

Benign:1

Benign, criteria provided, single submitter

clinical testing

Genome-Nilou Lab

Dec 05, 2021

- -

Baraitser-winter syndrome 2

Benign:1

Benign, criteria provided, single submitter

clinical testing

Genome-Nilou Lab

Dec 05, 2021

- -

Autosomal dominant nonsyndromic hearing loss 20;C3281235:Baraitser-winter syndrome 2

Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 15, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.50

CADD

Benign

9.8

DANN

Benign

0.96

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over