rs759499740

Variant names:

Variant summary

Our verdict is Benign. Variant got -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. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

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:3

Conservation

PhyloP100: 0.0460

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 made for transcript

Verdict is Benign. Variant got -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 male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

BS2

High AC in GnomAdExome4 at 88 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GARS1	NM_002047.4 link	c.112G>A	p.Ala38Thr	missense_variant	Exon 1 of 17	ENST00000389266.8	NP_002038.2	P41250-1
GARS1	NM_001316772.1 link	c.-51G>A		5_prime_UTR_variant	Exon 1 of 17		NP_001303701.1	P41250-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
GARS1	ENST00000389266.8 link	c.112G>A	p.Ala38Thr	missense_variant	Exon 1 of 17	1	NM_002047.4	ENSP00000373918.3	P41250-1
GARS1	ENST00000675651.1 link	c.112G>A	p.Ala38Thr	missense_variant	Exon 1 of 17			ENSP00000502513.1	A0A6Q8PGZ8
GARS1	ENST00000675810.1 link	c.112G>A	p.Ala38Thr	missense_variant	Exon 1 of 16			ENSP00000502743.1	A0A6Q8PHH9
GARS1	ENST00000675693.1 link	c.19-75G>A		intron_variant	Intron 1 of 17			ENSP00000502174.1	A0A6Q8PGA8
GARS1	ENST00000675051.1 link	c.22-3763G>A		intron_variant	Intron 1 of 16			ENSP00000502296.1	A0A6Q8PGI6
GARS1	ENST00000674815.1 link	c.-148+81G>A		intron_variant	Intron 1 of 16			ENSP00000502799.1	A0A6Q8PGW4
GARS1	ENST00000674851.1 link	c.-183-75G>A		intron_variant	Intron 1 of 17			ENSP00000502451.1	A0A6Q8PGW4
GARS1	ENST00000444666.6 link	n.112G>A		non_coding_transcript_exon_variant	Exon 1 of 18	3		ENSP00000415447.2	H7C443
GARS1	ENST00000674616.1 link	n.112G>A		non_coding_transcript_exon_variant	Exon 1 of 18			ENSP00000502408.1	A0A6Q8PGT3
GARS1	ENST00000674643.1 link	n.112G>A		non_coding_transcript_exon_variant	Exon 1 of 17			ENSP00000501636.1	A0A6Q8PF45
GARS1	ENST00000674737.1 link	n.112G>A		non_coding_transcript_exon_variant	Exon 1 of 18			ENSP00000502464.1	A0A6Q8PGZ9
GARS1	ENST00000674807.1 link	n.112G>A		non_coding_transcript_exon_variant	Exon 1 of 16			ENSP00000502814.1	A0A6Q8PFZ6
GARS1	ENST00000675529.1 link	n.112G>A		non_coding_transcript_exon_variant	Exon 1 of 18			ENSP00000501655.1	A0A6Q8PFN0
GARS1	ENST00000675859.1 link	n.112G>A		non_coding_transcript_exon_variant	Exon 1 of 15			ENSP00000502033.1	A0A6Q8PFZ6
GARS1	ENST00000676088.1 link	n.112G>A		non_coding_transcript_exon_variant	Exon 1 of 19			ENSP00000501884.1	A0A6Q8PFN0
GARS1	ENST00000676140.1 link	n.112G>A		non_coding_transcript_exon_variant	Exon 1 of 17			ENSP00000502571.1	A0A6Q8PH49
GARS1	ENST00000676164.1 link	n.112G>A		non_coding_transcript_exon_variant	Exon 1 of 17			ENSP00000501986.1	A0A6Q8PFV5
GARS1	ENST00000676210.1 link	n.112G>A		non_coding_transcript_exon_variant	Exon 1 of 18			ENSP00000502373.1	A0A6Q8PGN7
GARS1	ENST00000676259.1 link	n.112G>A		non_coding_transcript_exon_variant	Exon 1 of 17			ENSP00000501980.1	A0A6Q8PFU7
GARS1	ENST00000676403.1 link	n.112G>A		non_coding_transcript_exon_variant	Exon 1 of 16			ENSP00000502681.1	A0A6Q8PHI7

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

GnomAD3 exomes

AF:

0.0000172

AC:

AN:

174926

Hom.:

AF XY:

0.0000104

AC XY:

AN XY:

96264

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 SAS 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

Gnomad4 AFR exome

AF:

0.0000304

Gnomad4 AMR exome

AF:

0.00

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:

0.0000757

Gnomad4 OTH exome

AF:

0.0000677

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152186

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74344

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000441

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000130

Hom.:

Bravo

AF:

0.0000340

ExAC

AF:

0.0000172

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Uncertain:2

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. -

Apr 30, 2019

GeneDx

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

In silico analysis, which includes protein predictors and evolutionary conservation, supports that this variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.095

BayesDel_addAF

Benign

-0.21

BayesDel_noAF

Benign

-0.55

CADD

Benign

8.0

DANN

Benign

0.96

DEOGEN2

Benign

0.075

T;T

Eigen

Benign

-1.2

Eigen_PC

Benign

-1.2

FATHMM_MKL

Benign

0.027

LIST_S2

Benign

0.48

T;T

M_CAP

Benign

0.041

MetaRNN

Benign

0.051

T;T

MetaSVM

Benign

-0.96

PrimateAI

Uncertain

0.67

PROVEAN

Benign

-0.38

N;.

REVEL

Benign

0.18

Sift

Benign

0.34

T;.

Sift4G

Benign

0.43

T;D

Polyphen

0.0

B;.

Vest4

0.019

MVP

0.26

MPC

0.34

ClinPred

0.048

GERP RS

-2.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

2.9

Varity_R

0.063

gMVP

0.32

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