7-30628597-C-G

Variant names:

• chr7-30628597-C-G
• rs752464405
• NM_002047.4:c.1737C>G

Variant summary

Our verdict is Likely pathogenic. The variant received 8 ACMG points: 8P and 0B. PM1 PM2 PP3_Strong

The NM_002047.4(GARS1):​c.1737C>G​(p.Phe579Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,646 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. F579F) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: GARS1 NM_002047.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.421
• Publications: 0 publications found

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: Orphanet, Labcorp Genetics (formerly Invitae), ClinGen
• neuronopathy, distal hereditary motor, type 5A

  Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Laboratory for Molecular Medicine, Illumina, Labcorp Genetics (formerly Invitae), Orphanet
• spinal muscular atrophy, infantile, James type

  Inheritance: AD Classification: MODERATE Submitted by: Ambry Genetics

ACMG classification

Our verdict: Likely_pathogenic. The variant received 8 ACMG points.

• PM1: In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 2 benign, 11 uncertain in NM_002047.4
• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.943

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002047.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GARS1	NM_002047.4	MANE Select	c.1737C>G	p.Phe579Leu	missense	Exon 14 of 17	NP_002038.2	P41250-1
	GARS1	NM_001316772.1		c.1575C>G	p.Phe525Leu	missense	Exon 14 of 17	NP_001303701.1	P41250-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GARS1	ENST00000389266.8	TSL:1 MANE Select	c.1737C>G	p.Phe579Leu	missense	Exon 14 of 17	ENSP00000373918.3	P41250-1
	GARS1	ENST00000675651.1		c.1737C>G	p.Phe579Leu	missense	Exon 14 of 17	ENSP00000502513.1	A0A6Q8PGZ8
	GARS1	ENST00000675810.1		c.1635C>G	p.Phe545Leu	missense	Exon 13 of 16	ENSP00000502743.1	A0A6Q8PHH9

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.85e-7 AC: 1 AN: 1460646 Hom.: 0 Cov.: 30 AF XY: 0.00000138 AC XY: 1 AN XY: 726614

African (AFR) AF: 0.00 AC: 0 AN: 33454

American (AMR) AF: 0.00 AC: 0 AN: 44702

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26080

East Asian (EAS) AF: 0.00 AC: 0 AN: 39660

South Asian (SAS) AF: 0.00 AC: 0 AN: 86238

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53378

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5756

European-Non Finnish (NFE) AF: 9.00e-7 AC: 1 AN: 1111064

Other (OTH) AF: 0.00 AC: 0 AN: 60314

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.41	D
BayesDel_noAF	Pathogenic	0.36
CADD	Benign	22
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.67	D
Eigen	Benign	-0.084
Eigen_PC	Benign	-0.16
FATHMM_MKL	Uncertain	0.89	D
LIST_S2	Pathogenic	1.0	D
M_CAP	Pathogenic	0.48	D
MetaRNN	Pathogenic	0.94	D
MetaSVM	Uncertain	0.52	D
PhyloP100		0.42
PrimateAI	Pathogenic	0.80	D
PROVEAN	Pathogenic	-5.8	D
REVEL	Pathogenic	0.79
Sift	Uncertain	0.0020	D
Sift4G	Uncertain	0.0020	D
Polyphen		1.0	D
Vest4		0.83
MutPred		0.72		Gain of loop (P = 0.2754)
MVP		0.94
MPC		1.2
ClinPred		0.99	D
GERP RS		-0.79
Varity_R		0.97
gMVP		0.76
Mutation Taster		=24/76	disease causing

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

Other links and lift over

dbSNP: rs752464405; hg19: chr7-30668213;