rs3886641

Positions:

• chr7-30628621-G-A
• chr7-30628621-G-C

Variant summary

Our verdict is Benign. Variant got -19 ACMG points: 0P and 19B. BP4_Moderate BP6_Very_Strong BP7 BA1

The NM_002047.4(GARS1):​c.1761G>A​(p.Thr587Thr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00273 in 1,612,726 control chromosomes in the GnomAD database, including 113 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

• Frequency:
  • Genomes: 𝑓 0.014 (54 hom., cov: 32)
  • Exomes 𝑓: 0.0015 (59 hom.)
• Consequence: GARS1 NM_002047.4 synonymous
• Clinical Significance: Benign criteria provided, multiple submitters, no conflicts B:8
• Conservation: PhyloP100: -2.18

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 (HGNC:):

ACMG classification

Verdict is Benign. Variant got -19 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.39).
• BP6: Variant 7-30628621-G-A is Benign according to our data. Variant chr7-30628621-G-A is described in ClinVar as [Benign]. Clinvar id is 360015.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BP7: Synonymous conserved (PhyloP=-2.18 with no splicing effect.
• BA1: GnomAdExome4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0501 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
GARS1	NM_002047.4	c.1761G>A	p.Thr587Thr	synonymous_variant	14/17	ENST00000389266.8	NP_002038.2
GARS1	NM_001316772.1	c.1599G>A	p.Thr533Thr	synonymous_variant	14/17		NP_001303701.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
GARS1	ENST00000389266.8	c.1761G>A	p.Thr587Thr	synonymous_variant	14/17	1	NM_002047.4	ENSP00000373918.3
GARS1	ENST00000675651.1	c.1761G>A	p.Thr587Thr	synonymous_variant	14/17			ENSP00000502513.1
GARS1	ENST00000675810.1	c.1659G>A	p.Thr553Thr	synonymous_variant	13/16			ENSP00000502743.1
GARS1	ENST00000675693.1	c.1593G>A	p.Thr531Thr	synonymous_variant	15/18			ENSP00000502174.1
GARS1	ENST00000675051.1	c.1560G>A	p.Thr520Thr	synonymous_variant	14/17			ENSP00000502296.1
GARS1	ENST00000674815.1	c.1392G>A	p.Thr464Thr	synonymous_variant	14/17			ENSP00000502799.1
GARS1	ENST00000674851.1	c.1392G>A	p.Thr464Thr	synonymous_variant	15/18			ENSP00000502451.1
GARS1	ENST00000444666.6	n.*182G>A		non_coding_transcript_exon_variant	15/18	3		ENSP00000415447.2
GARS1	ENST00000674616.1	n.*1475G>A		non_coding_transcript_exon_variant	15/18			ENSP00000502408.1
GARS1	ENST00000674643.1	n.*861G>A		non_coding_transcript_exon_variant	15/17			ENSP00000501636.1
GARS1	ENST00000674737.1	n.*1099G>A		non_coding_transcript_exon_variant	15/18			ENSP00000502464.1
GARS1	ENST00000674807.1	n.*34G>A		non_coding_transcript_exon_variant	13/16			ENSP00000502814.1
GARS1	ENST00000675529.1	n.*1631G>A		non_coding_transcript_exon_variant	15/18			ENSP00000501655.1
GARS1	ENST00000675859.1	n.*34G>A		non_coding_transcript_exon_variant	13/15			ENSP00000502033.1
GARS1	ENST00000676088.1	n.*1703G>A		non_coding_transcript_exon_variant	16/19			ENSP00000501884.1
GARS1	ENST00000676140.1	n.*706G>A		non_coding_transcript_exon_variant	14/17			ENSP00000502571.1
GARS1	ENST00000676164.1	n.*1212G>A		non_coding_transcript_exon_variant	14/17			ENSP00000501986.1
GARS1	ENST00000676210.1	n.*1050G>A		non_coding_transcript_exon_variant	15/18			ENSP00000502373.1
GARS1	ENST00000676259.1	n.*1193G>A		non_coding_transcript_exon_variant	14/17			ENSP00000501980.1
GARS1	ENST00000676403.1	n.1761G>A		non_coding_transcript_exon_variant	14/16			ENSP00000502681.1
GARS1	ENST00000444666.6	n.*182G>A		3_prime_UTR_variant	15/18	3		ENSP00000415447.2
GARS1	ENST00000674616.1	n.*1475G>A		3_prime_UTR_variant	15/18			ENSP00000502408.1
GARS1	ENST00000674643.1	n.*861G>A		3_prime_UTR_variant	15/17			ENSP00000501636.1
GARS1	ENST00000674737.1	n.*1099G>A		3_prime_UTR_variant	15/18			ENSP00000502464.1
GARS1	ENST00000674807.1	n.*34G>A		3_prime_UTR_variant	13/16			ENSP00000502814.1
GARS1	ENST00000675529.1	n.*1631G>A		3_prime_UTR_variant	15/18			ENSP00000501655.1
GARS1	ENST00000675859.1	n.*34G>A		3_prime_UTR_variant	13/15			ENSP00000502033.1
GARS1	ENST00000676088.1	n.*1703G>A		3_prime_UTR_variant	16/19			ENSP00000501884.1
GARS1	ENST00000676140.1	n.*706G>A		3_prime_UTR_variant	14/17			ENSP00000502571.1
GARS1	ENST00000676164.1	n.*1212G>A		3_prime_UTR_variant	14/17			ENSP00000501986.1
GARS1	ENST00000676210.1	n.*1050G>A		3_prime_UTR_variant	15/18			ENSP00000502373.1
GARS1	ENST00000676259.1	n.*1193G>A		3_prime_UTR_variant	14/17			ENSP00000501980.1

Frequencies

GnomAD3 genomes AF: 0.0141 AC: 2144 AN: 152110 Hom.: 54 Cov.: 32

Gnomad AFR AF: 0.0486

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00589

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00104

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00633

Gnomad NFE AF: 0.000250

Gnomad OTH AF: 0.00814

GnomAD3 exomes AF: 0.00395 AC: 986 AN: 249570 Hom.: 24 AF XY: 0.00284 AC XY: 385 AN XY: 135396

Gnomad AFR exome AF: 0.0531

Gnomad AMR exome AF: 0.00336

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.000817

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.000115

Gnomad OTH exome AF: 0.00148

GnomAD4 exome AF: 0.00154 AC: 2250 AN: 1460498 Hom.: 59 Cov.: 30 AF XY: 0.00140 AC XY: 1019 AN XY: 726578

Gnomad4 AFR exome AF: 0.0521

Gnomad4 AMR exome AF: 0.00338

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.000707

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000747

Gnomad4 OTH exome AF: 0.00330

GnomAD4 genome AF: 0.0141 AC: 2145 AN: 152228 Hom.: 54 Cov.: 32 AF XY: 0.0135 AC XY: 1008 AN XY: 74428

Gnomad4 AFR AF: 0.0485

Gnomad4 AMR AF: 0.00588

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.000829

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000250

Gnomad4 OTH AF: 0.00806

Alfa AF: 0.00718 Hom.: 7

Bravo AF: 0.0164

Asia WGS AF: 0.00231 AC: 8 AN: 3478

EpiCase AF: 0.000109

EpiControl AF: 0.000237

ClinVar

Significance: Benign

Submissions summary: Benign:8

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not specified Benign:2

Benign, criteria provided, single submitter	clinical testing	Athena Diagnostics	Jun 27, 2024	- -
Benign, criteria provided, single submitter	clinical testing	GeneDx	Feb 22, 2016	This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Charcot-Marie-Tooth disease Benign:1

Benign, criteria provided, single submitter

clinical testing

Molecular Genetics Laboratory, London Health Sciences Centre

-

- -

Distal spinal muscular atrophy Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 12, 2018

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

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 29, 2024

- -

not provided Benign:1

Benign, criteria provided, single submitter

clinical testing

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Mar 31, 2022

- -

Charcot-Marie-Tooth disease type 2D Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 12, 2018

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. -

Neuronopathy, distal hereditary motor, type 5A Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 12, 2018

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. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.39
CADD	Benign	1.3
DANN	Benign	0.76
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		2.7

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

Other links and lift over

dbSNP: rs3886641; hg19: chr7-30668237;