rs759499740

Variant names:

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBS1_SupportingBS2

The NM_002047.4(GARS1):c.112G>A(p.Ala38Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000058 in 1,568,504 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. A38A) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000062 ( 0 hom. )

Consequence

GARS1
NM_002047.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 0.0460

Publications

0 publications found

Variant links:

Genes affected

GARS1 (HGNC:4162): (glycyl-tRNA synthetase 1) This gene encodes glycyl-tRNA synthetase, one of the aminoacyl-tRNA synthetases that charge tRNAs with their cognate amino acids. The encoded enzyme is an (alpha)2 dimer which belongs to the class II family of tRNA synthetases. It has been shown to be a target of autoantibodies in the human autoimmune diseases, polymyositis or dermatomyositis. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2015]

GARS1 links:

GARS1-DT (HGNC:48951): (GARS1 divergent transcript)

GARS1-DT links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -9 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.051151186).

BS1

Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.0000197 (3/152186) while in subpopulation NFE AF = 0.0000441 (3/68034). AF 95% confidence interval is 0.0000117. There are 0 homozygotes in GnomAd4. There are 1 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

BS2

High AC in GnomAdExome4 at 88 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002047.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GARS1	NM_002047.4	MANE Select	c.112G>A	p.Ala38Thr	missense	Exon 1 of 17	NP_002038.2
	GARS1	NM_001316772.1		c.-51G>A		5_prime_UTR	Exon 1 of 17	NP_001303701.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
GARS1	ENST00000389266.8	TSL:1 MANE Select	c.112G>A	p.Ala38Thr	missense	Exon 1 of 17	ENSP00000373918.3
GARS1	ENST00000675651.1		c.112G>A	p.Ala38Thr	missense	Exon 1 of 17	ENSP00000502513.1
GARS1	ENST00000675810.1		c.112G>A	p.Ala38Thr	missense	Exon 1 of 16	ENSP00000502743.1

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152186

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000172

AC:

AN:

174926

AF XY:

0.0000104

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000396

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000621

AC:

AN:

1416318

Hom.:

Cov.:

AF XY:

0.0000555

AC XY:

AN XY:

702212

show subpopulations

African (AFR)

AF:

0.0000304

AC:

AN:

32842

American (AMR)

AF:

0.00

AC:

AN:

40588

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25504

East Asian (EAS)

AF:

0.00

AC:

AN:

37984

South Asian (SAS)

AF:

0.00

AC:

AN:

81954

European-Finnish (FIN)

AF:

0.00

AC:

AN:

36656

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5532

European-Non Finnish (NFE)

AF:

0.0000757

AC:

AN:

1096190

Other (OTH)

AF:

0.0000677

AC:

AN:

59068

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.545

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.0000197

AC:

AN:

152186

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74344

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41450

American (AMR)

AF:

0.00

AC:

AN:

15288

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5174

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10616

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000441

AC:

AN:

68034

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.458

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.000130

Hom.:

Bravo

AF:

0.0000340

ExAC

AF:

0.0000172

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Uncertain:2

May 20, 2025

GeneDx

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

In silico analysis suggests that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge

Sep 20, 2022

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The GARS1 c.112G>A; p.Ala38Thr variant (rs759499740), to our knowledge, is not reported in the medical literature but is reported in ClinVar (Variation ID: 573677). This variant is only observed on four alleles in the Genome Aggregation Database, indicating it is not a common polymorphism. The alanine at codon 38 is weakly conserved, but computational analyses are uncertain whether this variant is neutral or deleterious (REVEL: 0.177). However, given the lack of clinical and functional data, the significance of this variant is uncertain at this time.

Charcot-Marie-Tooth disease type 2

Uncertain:1

Oct 08, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces alanine, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 38 of the GARS protein (p.Ala38Thr). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This variant has not been reported in the literature in individuals affected with GARS-related conditions. ClinVar contains an entry for this variant (Variation ID: 573677). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt GARS protein function with a negative predictive value of 95%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance.

Charcot-Marie-Tooth disease type 2D

Uncertain:1

Oct 08, 2021

Department of Pathology and Laboratory Medicine, Sinai Health System

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:research

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.095

BayesDel_addAF

Benign

-0.21

BayesDel_noAF

Benign

-0.55

CADD

Benign

8.0

(source)

DANN

Benign

0.96

DEOGEN2

Benign

0.075

Eigen

Benign

-1.2

Eigen_PC

Benign

-1.2

FATHMM_MKL

Benign

0.027

LIST_S2

Benign

0.48

M_CAP

Benign

0.041

MetaRNN

Benign

0.051

MetaSVM

Benign

-0.96

PhyloP100

0.046

PrimateAI

Uncertain

0.67

PROVEAN

Benign

-0.38

REVEL

Benign

0.18

Sift

Benign

0.34

Sift4G

Benign

0.43

Polyphen

0.0

Vest4

0.019

MVP

0.26

MPC

0.34

ClinPred

0.048

GERP RS

-2.3

PromoterAI

-0.054

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

2.9

Varity_R

0.063

gMVP

0.32

Mutation Taster

=100/0

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over