chr7-30628620-C-T

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BS1_SupportingBS2

The NM_002047.4(GARS1):c.1760C>T(p.Thr587Met) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000236 in 1,612,376 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. T587T) has been classified as Benign.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000023 ( 0 hom. )

Consequence

GARS1
NM_002047.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 7.88

Publications

1 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: Likely_benign. The variant received -5 ACMG points.

BS1

Variant frequency is greater than expected in population afr. GnomAdExome4 allele frequency = 0.0000233 (34/1460266) while in subpopulation AFR AF = 0.00012 (4/33444). AF 95% confidence interval is 0.0000408. There are 0 homozygotes in GnomAdExome4. There are 19 alleles in the male GnomAdExome4 subpopulation. Median coverage is 30. 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 34 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GARS1	NM_002047.4 link	c.1760C>T	p.Thr587Met	missense_variant	Exon 14 of 17	ENST00000389266.8	NP_002038.2	P41250-1
GARS1	NM_001316772.1 link	c.1598C>T	p.Thr533Met	missense_variant	Exon 14 of 17		NP_001303701.1	P41250-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
GARS1	ENST00000389266.8 link	c.1760C>T	p.Thr587Met	missense_variant	Exon 14 of 17	1	NM_002047.4	ENSP00000373918.3	P41250-1
GARS1	ENST00000675651.1 link	c.1760C>T	p.Thr587Met	missense_variant	Exon 14 of 17			ENSP00000502513.1	A0A6Q8PGZ8
GARS1	ENST00000675810.1 link	c.1658C>T	p.Thr553Met	missense_variant	Exon 13 of 16			ENSP00000502743.1	A0A6Q8PHH9
GARS1	ENST00000675693.1 link	c.1592C>T	p.Thr531Met	missense_variant	Exon 15 of 18			ENSP00000502174.1	A0A6Q8PGA8
GARS1	ENST00000675051.1 link	c.1559C>T	p.Thr520Met	missense_variant	Exon 14 of 17			ENSP00000502296.1	A0A6Q8PGI6
GARS1	ENST00000674815.1 link	c.1391C>T	p.Thr464Met	missense_variant	Exon 14 of 17			ENSP00000502799.1	A0A6Q8PGW4
GARS1	ENST00000674851.1 link	c.1391C>T	p.Thr464Met	missense_variant	Exon 15 of 18			ENSP00000502451.1	A0A6Q8PGW4
GARS1	ENST00000444666.6 link	n.*181C>T		non_coding_transcript_exon_variant	Exon 15 of 18	3		ENSP00000415447.2	H7C443
GARS1	ENST00000674616.1 link	n.*1474C>T		non_coding_transcript_exon_variant	Exon 15 of 18			ENSP00000502408.1	A0A6Q8PGT3
GARS1	ENST00000674643.1 link	n.*860C>T		non_coding_transcript_exon_variant	Exon 15 of 17			ENSP00000501636.1	A0A6Q8PF45
GARS1	ENST00000674737.1 link	n.*1098C>T		non_coding_transcript_exon_variant	Exon 15 of 18			ENSP00000502464.1	A0A6Q8PGZ9
GARS1	ENST00000674807.1 link	n.*33C>T		non_coding_transcript_exon_variant	Exon 13 of 16			ENSP00000502814.1	A0A6Q8PFZ6
GARS1	ENST00000675529.1 link	n.*1630C>T		non_coding_transcript_exon_variant	Exon 15 of 18			ENSP00000501655.1	A0A6Q8PFN0
GARS1	ENST00000675859.1 link	n.*33C>T		non_coding_transcript_exon_variant	Exon 13 of 15			ENSP00000502033.1	A0A6Q8PFZ6
GARS1	ENST00000676088.1 link	n.*1702C>T		non_coding_transcript_exon_variant	Exon 16 of 19			ENSP00000501884.1	A0A6Q8PFN0
GARS1	ENST00000676140.1 link	n.*705C>T		non_coding_transcript_exon_variant	Exon 14 of 17			ENSP00000502571.1	A0A6Q8PH49
GARS1	ENST00000676164.1 link	n.*1211C>T		non_coding_transcript_exon_variant	Exon 14 of 17			ENSP00000501986.1	A0A6Q8PFV5
GARS1	ENST00000676210.1 link	n.*1049C>T		non_coding_transcript_exon_variant	Exon 15 of 18			ENSP00000502373.1	A0A6Q8PGN7
GARS1	ENST00000676259.1 link	n.*1192C>T		non_coding_transcript_exon_variant	Exon 14 of 17			ENSP00000501980.1	A0A6Q8PFU7
GARS1	ENST00000676403.1 link	n.1760C>T		non_coding_transcript_exon_variant	Exon 14 of 16			ENSP00000502681.1	A0A6Q8PHI7
GARS1	ENST00000444666.6 link	n.*181C>T		3_prime_UTR_variant	Exon 15 of 18	3		ENSP00000415447.2	H7C443
GARS1	ENST00000674616.1 link	n.*1474C>T		3_prime_UTR_variant	Exon 15 of 18			ENSP00000502408.1	A0A6Q8PGT3
GARS1	ENST00000674643.1 link	n.*860C>T		3_prime_UTR_variant	Exon 15 of 17			ENSP00000501636.1	A0A6Q8PF45
GARS1	ENST00000674737.1 link	n.*1098C>T		3_prime_UTR_variant	Exon 15 of 18			ENSP00000502464.1	A0A6Q8PGZ9
GARS1	ENST00000674807.1 link	n.*33C>T		3_prime_UTR_variant	Exon 13 of 16			ENSP00000502814.1	A0A6Q8PFZ6
GARS1	ENST00000675529.1 link	n.*1630C>T		3_prime_UTR_variant	Exon 15 of 18			ENSP00000501655.1	A0A6Q8PFN0
GARS1	ENST00000675859.1 link	n.*33C>T		3_prime_UTR_variant	Exon 13 of 15			ENSP00000502033.1	A0A6Q8PFZ6
GARS1	ENST00000676088.1 link	n.*1702C>T		3_prime_UTR_variant	Exon 16 of 19			ENSP00000501884.1	A0A6Q8PFN0
GARS1	ENST00000676140.1 link	n.*705C>T		3_prime_UTR_variant	Exon 14 of 17			ENSP00000502571.1	A0A6Q8PH49
GARS1	ENST00000676164.1 link	n.*1211C>T		3_prime_UTR_variant	Exon 14 of 17			ENSP00000501986.1	A0A6Q8PFV5
GARS1	ENST00000676210.1 link	n.*1049C>T		3_prime_UTR_variant	Exon 15 of 18			ENSP00000502373.1	A0A6Q8PGN7
GARS1	ENST00000676259.1 link	n.*1192C>T		3_prime_UTR_variant	Exon 14 of 17			ENSP00000501980.1	A0A6Q8PFU7

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152110

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00000801

AC:

AN:

249576

AF XY:

0.0000148

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:

0.00000883

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000233

AC:

AN:

1460266

Hom.:

Cov.:

AF XY:

0.0000262

AC XY:

AN XY:

726448

show subpopulations

African (AFR)

AF:

0.000120

AC:

AN:

33444

American (AMR)

AF:

0.0000224

AC:

AN:

44686

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26076

East Asian (EAS)

AF:

0.00

AC:

AN:

39640

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86240

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53380

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5762

European-Non Finnish (NFE)

AF:

0.0000198

AC:

AN:

1110722

Other (OTH)

AF:

0.0000995

AC:

AN:

60316

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.456

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:

0.0000263

AC:

AN:

152110

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74288

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41426

American (AMR)

AF:

0.0000655

AC:

AN:

15274

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5194

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10574

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68026

Other (OTH)

AF:

0.00

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

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:

0.0000282

Hom.:

Bravo

AF:

0.0000264

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ExAC

AF:

0.0000165

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Charcot-Marie-Tooth disease type 2

Uncertain:1

Mar 26, 2023

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

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. This sequence change replaces threonine, which is neutral and polar, with methionine, which is neutral and non-polar, at codon 587 of the GARS protein (p.Thr587Met). This variant is present in population databases (rs750292154, gnomAD 0.003%). This missense change has been observed in individual(s) with clinical features of Charcot-Marie-Tooth disease (PMID: 32376792). ClinVar contains an entry for this variant (Variation ID: 543242). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt GARS protein function. -

not provided

Uncertain:1

Sep 01, 2020

CeGaT Center for Human Genetics Tuebingen

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.31

BayesDel_addAF

Benign

-0.00085

BayesDel_noAF

Benign

-0.14

CADD

Pathogenic

(source)

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.27

Eigen

Uncertain

0.66

Eigen_PC

Pathogenic

0.69

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.97

M_CAP

Benign

0.027

MetaRNN

Uncertain

0.72

MetaSVM

Benign

-1.2

PhyloP100

7.9

PrimateAI

Uncertain

0.59

PROVEAN

Uncertain

-2.5

REVEL

Benign

0.28

Sift

Uncertain

0.0050

Sift4G

Uncertain

0.013

Polyphen

0.99

Vest4

0.63

MutPred

0.59

Gain of phosphorylation at T592 (P = 0.3169);

MVP

0.33

MPC

0.97

ClinPred

0.93

GERP RS

5.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

2.1

Varity_R

0.55

gMVP

0.74

Mutation Taster

=52/48

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

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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