rs754547488

Variant names:

Variant summary

Our verdict is Likely pathogenic. The variant received 8 ACMG points: 8P and 0B. PM1PM2PP3_Strong

The NM_002047.4(GARS1):c.1729C>A(p.Pro577Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000131 in 152,184 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

GARS1
NM_002047.4 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 7.88

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 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_pathogenic. The variant received 8 ACMG points.

PM1

In a hotspot region, there are 3 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 2 benign, 10 uncertain in NM_002047.4

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.985

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GARS1	NM_002047.4 link	c.1729C>A	p.Pro577Thr	missense_variant	Exon 14 of 17	ENST00000389266.8	NP_002038.2	P41250-1
GARS1	NM_001316772.1 link	c.1567C>A	p.Pro523Thr	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.1729C>A	p.Pro577Thr	missense_variant	Exon 14 of 17	1	NM_002047.4	ENSP00000373918.3	P41250-1
GARS1	ENST00000675651.1 link	c.1729C>A	p.Pro577Thr	missense_variant	Exon 14 of 17			ENSP00000502513.1	A0A6Q8PGZ8
GARS1	ENST00000675810.1 link	c.1627C>A	p.Pro543Thr	missense_variant	Exon 13 of 16			ENSP00000502743.1	A0A6Q8PHH9
GARS1	ENST00000675693.1 link	c.1561C>A	p.Pro521Thr	missense_variant	Exon 15 of 18			ENSP00000502174.1	A0A6Q8PGA8
GARS1	ENST00000675051.1 link	c.1528C>A	p.Pro510Thr	missense_variant	Exon 14 of 17			ENSP00000502296.1	A0A6Q8PGI6
GARS1	ENST00000674815.1 link	c.1360C>A	p.Pro454Thr	missense_variant	Exon 14 of 17			ENSP00000502799.1	A0A6Q8PGW4
GARS1	ENST00000674851.1 link	c.1360C>A	p.Pro454Thr	missense_variant	Exon 15 of 18			ENSP00000502451.1	A0A6Q8PGW4
GARS1	ENST00000444666.6 link	n.*150C>A		non_coding_transcript_exon_variant	Exon 15 of 18	3		ENSP00000415447.2	H7C443
GARS1	ENST00000674616.1 link	n.*1443C>A		non_coding_transcript_exon_variant	Exon 15 of 18			ENSP00000502408.1	A0A6Q8PGT3
GARS1	ENST00000674643.1 link	n.*829C>A		non_coding_transcript_exon_variant	Exon 15 of 17			ENSP00000501636.1	A0A6Q8PF45
GARS1	ENST00000674737.1 link	n.*1067C>A		non_coding_transcript_exon_variant	Exon 15 of 18			ENSP00000502464.1	A0A6Q8PGZ9
GARS1	ENST00000674807.1 link	n.*2C>A		non_coding_transcript_exon_variant	Exon 13 of 16			ENSP00000502814.1	A0A6Q8PFZ6
GARS1	ENST00000675529.1 link	n.*1599C>A		non_coding_transcript_exon_variant	Exon 15 of 18			ENSP00000501655.1	A0A6Q8PFN0
GARS1	ENST00000675859.1 link	n.*2C>A		non_coding_transcript_exon_variant	Exon 13 of 15			ENSP00000502033.1	A0A6Q8PFZ6
GARS1	ENST00000676088.1 link	n.*1671C>A		non_coding_transcript_exon_variant	Exon 16 of 19			ENSP00000501884.1	A0A6Q8PFN0
GARS1	ENST00000676140.1 link	n.*674C>A		non_coding_transcript_exon_variant	Exon 14 of 17			ENSP00000502571.1	A0A6Q8PH49
GARS1	ENST00000676164.1 link	n.*1180C>A		non_coding_transcript_exon_variant	Exon 14 of 17			ENSP00000501986.1	A0A6Q8PFV5
GARS1	ENST00000676210.1 link	n.*1018C>A		non_coding_transcript_exon_variant	Exon 15 of 18			ENSP00000502373.1	A0A6Q8PGN7
GARS1	ENST00000676259.1 link	n.*1161C>A		non_coding_transcript_exon_variant	Exon 14 of 17			ENSP00000501980.1	A0A6Q8PFU7
GARS1	ENST00000676403.1 link	n.1729C>A		non_coding_transcript_exon_variant	Exon 14 of 16			ENSP00000502681.1	A0A6Q8PHI7
GARS1	ENST00000444666.6 link	n.*150C>A		3_prime_UTR_variant	Exon 15 of 18	3		ENSP00000415447.2	H7C443
GARS1	ENST00000674616.1 link	n.*1443C>A		3_prime_UTR_variant	Exon 15 of 18			ENSP00000502408.1	A0A6Q8PGT3
GARS1	ENST00000674643.1 link	n.*829C>A		3_prime_UTR_variant	Exon 15 of 17			ENSP00000501636.1	A0A6Q8PF45
GARS1	ENST00000674737.1 link	n.*1067C>A		3_prime_UTR_variant	Exon 15 of 18			ENSP00000502464.1	A0A6Q8PGZ9
GARS1	ENST00000674807.1 link	n.*2C>A		3_prime_UTR_variant	Exon 13 of 16			ENSP00000502814.1	A0A6Q8PFZ6
GARS1	ENST00000675529.1 link	n.*1599C>A		3_prime_UTR_variant	Exon 15 of 18			ENSP00000501655.1	A0A6Q8PFN0
GARS1	ENST00000675859.1 link	n.*2C>A		3_prime_UTR_variant	Exon 13 of 15			ENSP00000502033.1	A0A6Q8PFZ6
GARS1	ENST00000676088.1 link	n.*1671C>A		3_prime_UTR_variant	Exon 16 of 19			ENSP00000501884.1	A0A6Q8PFN0
GARS1	ENST00000676140.1 link	n.*674C>A		3_prime_UTR_variant	Exon 14 of 17			ENSP00000502571.1	A0A6Q8PH49
GARS1	ENST00000676164.1 link	n.*1180C>A		3_prime_UTR_variant	Exon 14 of 17			ENSP00000501986.1	A0A6Q8PFV5
GARS1	ENST00000676210.1 link	n.*1018C>A		3_prime_UTR_variant	Exon 15 of 18			ENSP00000502373.1	A0A6Q8PGN7
GARS1	ENST00000676259.1 link	n.*1161C>A		3_prime_UTR_variant	Exon 14 of 17			ENSP00000501980.1	A0A6Q8PFU7

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152184

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

1460246

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

726448

African (AFR)

AF:

0.00

AC:

AN:

33446

American (AMR)

AF:

0.00

AC:

AN:

44702

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26074

East Asian (EAS)

AF:

0.00

AC:

AN:

39642

South Asian (SAS)

AF:

0.00

AC:

AN:

86236

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53384

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5754

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1110702

Other (OTH)

AF:

0.00

AC:

AN:

60306

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152184

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74334

show subpopulations

African (AFR)

AF:

0.0000483

AC:

AN:

41444

American (AMR)

AF:

0.00

AC:

AN:

15290

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5198

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10598

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68036

Other (OTH)

AF:

0.00

AC:

AN:

2092

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:

0.0000658

Hom.:

Bravo

AF:

0.0000151

ExAC

AF:

0.00000827

AC:

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

Oct 15, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces proline, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 577 of the GARS protein (p.Pro577Thr). This variant is not present in population databases (gnomAD no frequency). 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: 579111). 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 expected to disrupt GARS protein function with a positive 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. -

not provided

Uncertain:1

Oct 18, 2023

GeneDx

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge; This variant is associated with the following publications: (PMID: 26503042, 26138142, 25168514) -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.99

BayesDel_addAF

Pathogenic

0.51

BayesDel_noAF

Pathogenic

0.50

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.72

Eigen

Pathogenic

0.91

Eigen_PC

Pathogenic

0.88

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Pathogenic

1.0

M_CAP

Pathogenic

0.40

MetaRNN

Pathogenic

0.99

MetaSVM

Pathogenic

0.92

PhyloP100

7.9

PrimateAI

Uncertain

0.76

PROVEAN

Pathogenic

-7.7

REVEL

Pathogenic

0.94

Sift

Uncertain

0.0010

Sift4G

Pathogenic

0.0010

Polyphen

1.0

Vest4

0.93

MutPred

0.90

Gain of sheet (P = 0.1208);

MVP

0.93

MPC

1.2

ClinPred

1.0

GERP RS

5.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.92

gMVP

0.81

Mutation Taster

=4/96

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

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over