rs2230159

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_001614.5(ACTG1):​c.729C>T​(p.Pro243Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0147 in 1,613,722 control chromosomes in the GnomAD database, including 272 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.016 ( 27 hom., cov: 33)
Exomes 𝑓: 0.015 ( 245 hom. )

Consequence

ACTG1
NM_001614.5 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:12

Conservation

PhyloP100: -1.03

Publications

10 publications found
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 Gene-Disease associations (from GenCC):
  • Baraitser-winter syndrome 2
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: ClinGen, Labcorp Genetics (formerly Invitae), G2P, PanelApp Australia
  • nonsyndromic genetic hearing loss
    Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
  • autosomal dominant nonsyndromic hearing loss 20
    Inheritance: AD Classification: STRONG Submitted by: PanelApp Australia, Labcorp Genetics (formerly Invitae)
  • autosomal dominant nonsyndromic hearing loss
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • Baraitser-Winter cerebrofrontofacial syndrome
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.81).
BP6
Variant 17-81511261-G-A is Benign according to our data. Variant chr17-81511261-G-A is described in ClinVar as Benign. ClinVar VariationId is 128272.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-1.03 with no splicing effect.
BS1
Variant frequency is greater than expected in population eas. GnomAd4 allele frequency = 0.016 (2438/152282) while in subpopulation EAS AF = 0.0436 (226/5178). AF 95% confidence interval is 0.039. There are 27 homozygotes in GnomAd4. There are 1213 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.
BS2
High AC in GnomAd4 at 2438 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ACTG1NM_001614.5 linkc.729C>T p.Pro243Pro synonymous_variant Exon 4 of 6 ENST00000573283.7 NP_001605.1 P63261
ACTG1NM_001199954.3 linkc.729C>T p.Pro243Pro synonymous_variant Exon 4 of 6 NP_001186883.1 P63261
ACTG1NR_037688.3 linkn.801C>T non_coding_transcript_exon_variant Exon 4 of 7

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ACTG1ENST00000573283.7 linkc.729C>T p.Pro243Pro synonymous_variant Exon 4 of 6 5 NM_001614.5 ENSP00000458435.1 P63261

Frequencies

GnomAD3 genomes
AF:
0.0160
AC:
2438
AN:
152164
Hom.:
27
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0148
Gnomad AMI
AF:
0.00329
Gnomad AMR
AF:
0.0213
Gnomad ASJ
AF:
0.0513
Gnomad EAS
AF:
0.0437
Gnomad SAS
AF:
0.0161
Gnomad FIN
AF:
0.00556
Gnomad MID
AF:
0.00949
Gnomad NFE
AF:
0.0133
Gnomad OTH
AF:
0.0210
GnomAD2 exomes
AF:
0.0171
AC:
4291
AN:
250568
AF XY:
0.0168
show subpopulations
Gnomad AFR exome
AF:
0.0146
Gnomad AMR exome
AF:
0.0160
Gnomad ASJ exome
AF:
0.0488
Gnomad EAS exome
AF:
0.0406
Gnomad FIN exome
AF:
0.00633
Gnomad NFE exome
AF:
0.0132
Gnomad OTH exome
AF:
0.0198
GnomAD4 exome
AF:
0.0145
AC:
21263
AN:
1461440
Hom.:
245
Cov.:
37
AF XY:
0.0146
AC XY:
10638
AN XY:
727036
show subpopulations
African (AFR)
AF:
0.0147
AC:
493
AN:
33480
American (AMR)
AF:
0.0158
AC:
708
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.0499
AC:
1303
AN:
26136
East Asian (EAS)
AF:
0.0386
AC:
1531
AN:
39700
South Asian (SAS)
AF:
0.0169
AC:
1457
AN:
86258
European-Finnish (FIN)
AF:
0.00574
AC:
304
AN:
52984
Middle Eastern (MID)
AF:
0.0252
AC:
145
AN:
5764
European-Non Finnish (NFE)
AF:
0.0128
AC:
14200
AN:
1112008
Other (OTH)
AF:
0.0186
AC:
1122
AN:
60386
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.494
Heterozygous variant carriers
0
1593
3187
4780
6374
7967
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
586
1172
1758
2344
2930
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0160
AC:
2438
AN:
152282
Hom.:
27
Cov.:
33
AF XY:
0.0163
AC XY:
1213
AN XY:
74474
show subpopulations
African (AFR)
AF:
0.0148
AC:
614
AN:
41548
American (AMR)
AF:
0.0214
AC:
327
AN:
15294
Ashkenazi Jewish (ASJ)
AF:
0.0513
AC:
178
AN:
3470
East Asian (EAS)
AF:
0.0436
AC:
226
AN:
5178
South Asian (SAS)
AF:
0.0159
AC:
77
AN:
4828
European-Finnish (FIN)
AF:
0.00556
AC:
59
AN:
10616
Middle Eastern (MID)
AF:
0.0102
AC:
3
AN:
294
European-Non Finnish (NFE)
AF:
0.0133
AC:
906
AN:
68028
Other (OTH)
AF:
0.0213
AC:
45
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.501
Heterozygous variant carriers
0
129
258
388
517
646
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
28
56
84
112
140
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0116
Hom.:
12
Bravo
AF:
0.0166
Asia WGS
AF:
0.0390
AC:
135
AN:
3478
EpiCase
AF:
0.0162
EpiControl
AF:
0.0158

ClinVar

Significance: Benign
Submissions summary: Benign:12
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:5
Feb 20, 2013
Genetic Services Laboratory, University of Chicago
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Nov 13, 2015
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

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. -

May 07, 2012
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Pro243Pro in Exon 04 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 1.7% (62/3736) of Af rican American chromosomes from a broad population by the NHLBI Exome Sequencing Project (http://evs.gs.washington.edu/EVS; dbSNP rs2230159). -

-
Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Jan 27, 2015
Eurofins Ntd Llc (ga)
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Benign:4
Sep 12, 2018
Athena Diagnostics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Sep 27, 2023
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Autosomal dominant nonsyndromic hearing loss 20 Benign:1
Dec 05, 2021
Genome-Nilou Lab
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Baraitser-winter syndrome 2 Benign:1
Dec 05, 2021
Genome-Nilou Lab
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Autosomal dominant nonsyndromic hearing loss 20;C3281235:Baraitser-winter syndrome 2 Benign:1
Feb 03, 2025
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
BayesDel_noAF
Benign
-0.81
CADD
Benign
1.3
DANN
Benign
0.91
PhyloP100
-1.0
Mutation Taster
=98/2
polymorphism (auto)

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

Other links and lift over

dbSNP: rs2230159; hg19: chr17-79478287; API