17-81511002-G-A

Position:

chr17-81511002-G-A

Variant summary

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

The NM_001614.5(ACTG1):c.909C>T(p.Thr303=) variant causes a synonymous change. The variant allele was found at a frequency of 0.0000867 in 1,614,058 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00016 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000079 ( 0 hom. )

Consequence

ACTG1
NM_001614.5 synonymous

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: 4.61

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:

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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=-0.5).

BP6

Variant 17-81511002-G-A is Benign according to our data. Variant chr17-81511002-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 162713.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr17-81511002-G-A is described in Lovd as [Likely_benign].

BS1

Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.000164 (25/152314) while in subpopulation AMR AF= 0.00118 (18/15296). AF 95% confidence interval is 0.00076. There are 0 homozygotes in gnomad4. There are 13 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

BS2

High AC in GnomAd4 at 25 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
ACTG1	NM_001614.5 linkuse as main transcript	c.909C>T	p.Thr303=	synonymous_variant	5/6	ENST00000573283.7	NP_001605.1
ACTG1	NM_001199954.3 linkuse as main transcript	c.909C>T	p.Thr303=	synonymous_variant	5/6		NP_001186883.1
ACTG1	NR_037688.3 linkuse as main transcript	n.981C>T		non_coding_transcript_exon_variant	5/7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ACTG1	ENST00000573283.7 linkuse as main transcript	c.909C>T	p.Thr303=	synonymous_variant	5/6	5	NM_001614.5	ENSP00000458435	P4

Frequencies

GnomAD3 genomes

AF:

0.000164

AC:

AN:

152198

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00118

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:

0.0000588

Gnomad OTH

AF:

0.00143

GnomAD3 exomes

AF:

0.000282

AC:

AN:

251346

Hom.:

AF XY:

0.000228

AC XY:

AN XY:

135876

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00165

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:

0.000114

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000787

AC:

115

AN:

1461744

Hom.:

Cov.:

AF XY:

0.0000784

AC XY:

AN XY:

727194

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00157

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:

0.0000333

Gnomad4 OTH exome

AF:

0.000132

GnomAD4 genome

AF:

0.000164

AC:

AN:

152314

Hom.:

Cov.:

AF XY:

0.000175

AC XY:

AN XY:

74470

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00118

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000588

Gnomad4 OTH

AF:

0.00142

Alfa

AF:

0.0000761

Hom.:

Bravo

AF:

0.000204

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:5

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Jan 09, 2014

Thr303Thr in Exon 5 of ACTG1: This variant is not expected to have clinical sign ificance because it does not alter an amino acid residue and is not located with in the splice consensus sequence. It has been identified in 0.04% (1/2178) of ch romosomes by the 1000 Genomes Project (dbSNP rs187127467). -

Autosomal dominant nonsyndromic hearing loss 20

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 25, 2024

- -

not provided

Benign:1

Benign, criteria provided, single submitter

clinical testing

GeneDx

Dec 14, 2018

- -

Baraitser-winter syndrome 2

Benign:1

Benign, criteria provided, single submitter

clinical testing

Genome-Nilou Lab

Dec 05, 2021

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.50

CADD

Benign

8.9

DANN

Benign

0.93

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