7-30598875-G-A

Variant names:

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP6BS1BS2

The NM_002047.4(GARS1):c.302G>A(p.Arg101His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000271 in 1,613,978 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R101C) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00024 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00027 ( 0 hom. )

Consequence

GARS1
NM_002047.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:6

Conservation

PhyloP100: 9.10

Publications

12 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 Gene-Disease associations (from GenCC):

Charcot-Marie-Tooth disease type 2D
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Labcorp Genetics (formerly Invitae), Orphanet
neuronopathy, distal hereditary motor, type 5A
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), Illumina, Laboratory for Molecular Medicine
spinal muscular atrophy, infantile, James type
Inheritance: AD Classification: MODERATE Submitted by: Ambry Genetics

GARS1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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

BP6

Variant 7-30598875-G-A is Benign according to our data. Variant chr7-30598875-G-A is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 245685. Variant chr7-30598875-G-A is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 245685. Variant chr7-30598875-G-A is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 245685. Variant chr7-30598875-G-A is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 245685. Variant chr7-30598875-G-A is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 245685. Variant chr7-30598875-G-A is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 245685. Variant chr7-30598875-G-A is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 245685. Variant chr7-30598875-G-A is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 245685. Variant chr7-30598875-G-A is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 245685. Variant chr7-30598875-G-A is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 245685. Variant chr7-30598875-G-A is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 245685. Variant chr7-30598875-G-A is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 245685.

BS1

Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.000236 (36/152300) while in subpopulation AMR AF = 0.000588 (9/15304). AF 95% confidence interval is 0.000306. There are 0 homozygotes in GnomAd4. There are 17 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High AC in GnomAd4 at 36 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GARS1	NM_002047.4 link	c.302G>A	p.Arg101His	missense_variant	Exon 2 of 17	ENST00000389266.8	NP_002038.2	P41250-1
GARS1	NM_001316772.1 link	c.140G>A	p.Arg47His	missense_variant	Exon 2 of 17		NP_001303701.1	P41250-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
GARS1	ENST00000389266.8 link	c.302G>A	p.Arg101His	missense_variant	Exon 2 of 17	1	NM_002047.4	ENSP00000373918.3	P41250-1
GARS1	ENST00000675651.1 link	c.302G>A	p.Arg101His	missense_variant	Exon 2 of 17			ENSP00000502513.1	A0A6Q8PGZ8
GARS1	ENST00000675693.1 link	c.134G>A	p.Arg45His	missense_variant	Exon 3 of 18			ENSP00000502174.1	A0A6Q8PGA8
GARS1	ENST00000675051.1 link	c.101G>A	p.Arg34His	missense_variant	Exon 2 of 17			ENSP00000502296.1	A0A6Q8PGI6
GARS1	ENST00000444666.6 link	n.302G>A		non_coding_transcript_exon_variant	Exon 2 of 18	3		ENSP00000415447.2	H7C443
GARS1	ENST00000674616.1 link	n.302G>A		non_coding_transcript_exon_variant	Exon 2 of 18			ENSP00000502408.1	A0A6Q8PGT3
GARS1	ENST00000674643.1 link	n.302G>A		non_coding_transcript_exon_variant	Exon 2 of 17			ENSP00000501636.1	A0A6Q8PF45
GARS1	ENST00000674737.1 link	n.302G>A		non_coding_transcript_exon_variant	Exon 2 of 18			ENSP00000502464.1	A0A6Q8PGZ9
GARS1	ENST00000674807.1 link	n.302G>A		non_coding_transcript_exon_variant	Exon 2 of 16			ENSP00000502814.1	A0A6Q8PFZ6
GARS1	ENST00000675529.1 link	n.*172G>A		non_coding_transcript_exon_variant	Exon 3 of 18			ENSP00000501655.1	A0A6Q8PFN0
GARS1	ENST00000675859.1 link	n.302G>A		non_coding_transcript_exon_variant	Exon 2 of 15			ENSP00000502033.1	A0A6Q8PFZ6
GARS1	ENST00000676088.1 link	n.*172G>A		non_coding_transcript_exon_variant	Exon 3 of 19			ENSP00000501884.1	A0A6Q8PFN0
GARS1	ENST00000676140.1 link	n.302G>A		non_coding_transcript_exon_variant	Exon 2 of 17			ENSP00000502571.1	A0A6Q8PH49
GARS1	ENST00000676164.1 link	n.302G>A		non_coding_transcript_exon_variant	Exon 2 of 17			ENSP00000501986.1	A0A6Q8PFV5
GARS1	ENST00000676210.1 link	n.302G>A		non_coding_transcript_exon_variant	Exon 2 of 18			ENSP00000502373.1	A0A6Q8PGN7
GARS1	ENST00000676259.1 link	n.302G>A		non_coding_transcript_exon_variant	Exon 2 of 17			ENSP00000501980.1	A0A6Q8PFU7
GARS1	ENST00000676403.1 link	n.302G>A		non_coding_transcript_exon_variant	Exon 2 of 16			ENSP00000502681.1	A0A6Q8PHI7
GARS1	ENST00000674815.1 link	c.-68G>A		5_prime_UTR_variant	Exon 2 of 17			ENSP00000502799.1	A0A6Q8PGW4
GARS1	ENST00000674851.1 link	c.-68G>A		5_prime_UTR_variant	Exon 3 of 18			ENSP00000502451.1	A0A6Q8PGW4
GARS1	ENST00000675529.1 link	n.*172G>A		3_prime_UTR_variant	Exon 3 of 18			ENSP00000501655.1	A0A6Q8PFN0
GARS1	ENST00000676088.1 link	n.*172G>A		3_prime_UTR_variant	Exon 3 of 19			ENSP00000501884.1	A0A6Q8PFN0
GARS1	ENST00000675810.1 link	c.223-1072G>A		intron_variant	Intron 1 of 15			ENSP00000502743.1	A0A6Q8PHH9

Frequencies

GnomAD3 genomes

AF:

0.000237

AC:

AN:

152182

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000589

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.0000942

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000367

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000345

AC:

AN:

249370

AF XY:

0.000355

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000348

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000592

Gnomad OTH exome

AF:

0.000330

GnomAD4 exome

AF:

0.000274

AC:

401

AN:

1461678

Hom.:

Cov.:

AF XY:

0.000267

AC XY:

194

AN XY:

727146

show subpopulations

African (AFR)

AF:

0.0000598

AC:

AN:

33472

American (AMR)

AF:

0.000313

AC:

AN:

44720

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39696

South Asian (SAS)

AF:

0.0000928

AC:

AN:

86252

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53394

Middle Eastern (MID)

AF:

0.000347

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.000324

AC:

360

AN:

1111850

Other (OTH)

AF:

0.000248

AC:

AN:

60390

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.466

Heterozygous variant carriers

105

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

100

<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:

0.000236

AC:

AN:

152300

Hom.:

Cov.:

AF XY:

0.000228

AC XY:

AN XY:

74476

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41548

American (AMR)

AF:

0.000588

AC:

AN:

15304

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5182

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.0000942

AC:

AN:

10618

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000368

AC:

AN:

68024

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.482

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:

0.000439

Hom.:

Bravo

AF:

0.000280

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000244

AC:

ExAC

AF:

0.000381

AC:

EpiCase

AF:

0.000491

EpiControl

AF:

0.000889

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:3Benign:6

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:2Benign:1

Apr 01, 2025

CeGaT Center for Human Genetics Tuebingen

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

GARS1: BS2 -

Nov 17, 2022

GeneDx

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Reported as a variant of unknown significance in individuals tested by an outside laboratory suspected of having Charcot-Marie-Tooth disease (DiVincenzo et al., 2014; Nam et al., 2021; Volodarsky et al., 2021); Identified previously in the heterozygous state in two individuals with neuropathy (Antoniadi et al., 2015; Apellniz-Ruiz et al., 2017); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 27582484, 28166811, 34813128, 32028661, 34426522, 29520015, 32376792, 25614874, 26392352) -

Dec 29, 2021

Mayo Clinic Laboratories, Mayo Clinic

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not specified

Uncertain:1Benign:1

Apr 17, 2023

Ambry Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Mar 21, 2024

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Variant summary: GARS1 c.302G>A (p.Arg101His) results in a non-conservative amino acid change located in the WHEP-TRS domain (IPR000738) of the encoded protein sequence. Three of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 0.00031 in 280760 control chromosomes (gnomAD). The available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. c.302G>A has been reported in the literature in individuals affected with neuropathy, CMT, or ALS without strong evidence of causality (e.g. Antoniadi_2015, Apellaniz-Ruiz_2017, Pensato_2020, Volodarsky_2021, Nam_2022). These reports do not provide unequivocal conclusions about association of the variant with GARS1-Related Disorders. At least one publication reports experimental evidence evaluating an impact on protein function, finding that the variant does not result in aberrant GlyRS-HDAC6 interaction (Mo_2018). The following publications have been ascertained in the context of this evaluation (PMID: 26392352, 27582484, 29520015, 32028661, 32376792, 34813128). ClinVar contains an entry for this variant (Variation ID: 245685). Based on the evidence outlined above, the variant was classified as uncertain significance. -

Distal spinal muscular atrophy

Benign:1

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Charcot-Marie-Tooth disease type 2

Benign:1

Dec 04, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Charcot-Marie-Tooth disease type 2D

Benign:1

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -

Neuronopathy, distal hereditary motor, type 5A

Benign:1

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.47

BayesDel_addAF

Benign

-0.14

BayesDel_noAF

Benign

-0.090

CADD

Pathogenic

(source)

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.42

Eigen

Pathogenic

0.93

Eigen_PC

Pathogenic

0.89

FATHMM_MKL

Pathogenic

1.0

LIST_S2

Pathogenic

1.0

M_CAP

Benign

0.014

MetaRNN

Uncertain

0.52

MetaSVM

Benign

-0.70

PhyloP100

9.1

PrimateAI

Uncertain

0.67

PROVEAN

Uncertain

-4.4

REVEL

Uncertain

0.34

Sift

Benign

0.053

Sift4G

Benign

0.35

Polyphen

1.0

Vest4

0.88

MVP

0.49

MPC

0.57

ClinPred

0.47

GERP RS

5.3

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.62

gMVP

0.65

Mutation Taster

=28/72

disease causing

(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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over