rs2290297

Positions:

• chr12-57511829-A-G

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_Strong BP6_Very_Strong BP7 BA1

The NM_004990.4(MARS1):​c.1500A>G​(p.Lys500=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00214 in 1,614,188 control chromosomes in the GnomAD database, including 135 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

• Frequency:
  • Genomes: 𝑓 0.0030 (17 hom., cov: 33)
  • Exomes 𝑓: 0.0020 (118 hom.)
• Consequence: MARS1 NM_004990.4 synonymous
• Clinical Significance: Benign criteria provided, multiple submitters, no conflicts B:5
• Conservation: PhyloP100: 0.449

Genes affected

MARS1 (HGNC:6898): (methionyl-tRNA synthetase 1) This gene encodes a member of the class I family of aminoacyl-tRNA synthetases. These enzymes play a critical role in protein biosynthesis by charging tRNAs with their cognate amino acids. The encoded protein is a component of the multi-tRNA synthetase complex and catalyzes the ligation of methionine to tRNA molecules. [provided by RefSeq, Jan 2011]

ACMG classification

Verdict is Benign. Variant got -21 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.6).
• BP6: Variant 12-57511829-A-G is Benign according to our data. Variant chr12-57511829-A-G is described in ClinVar as [Benign]. Clinvar id is 381454.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BP7: Synonymous conserved (PhyloP=0.449 with no splicing effect.
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.0662 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MARS1	NM_004990.4	c.1500A>G	p.Lys500=	synonymous_variant	12/21	ENST00000262027.10	NP_004981.2
MARS1	XM_047428851.1	c.798A>G	p.Lys266=	synonymous_variant	8/17		XP_047284807.1
MARS1	XM_047428852.1	c.1500A>G	p.Lys500=	synonymous_variant	12/15		XP_047284808.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MARS1	ENST00000262027.10	c.1500A>G	p.Lys500=	synonymous_variant	12/21	1	NM_004990.4	ENSP00000262027	P1

Frequencies

GnomAD3 genomes AF: 0.00300 AC: 456 AN: 152216 Hom.: 16 Cov.: 33

Gnomad AFR AF: 0.000458

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00170

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.0724

Gnomad SAS AF: 0.00290

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.000147

Gnomad OTH AF: 0.00525

GnomAD3 exomes AF: 0.00584 AC: 1467 AN: 251280 Hom.: 55 AF XY: 0.00537 AC XY: 730 AN XY: 135824

Gnomad AFR exome AF: 0.000616

Gnomad AMR exome AF: 0.000203

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0747

Gnomad SAS exome AF: 0.00124

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000528

Gnomad OTH exome AF: 0.00538

GnomAD4 exome AF: 0.00204 AC: 2984 AN: 1461854 Hom.: 118 Cov.: 31 AF XY: 0.00197 AC XY: 1431 AN XY: 727224

Gnomad4 AFR exome AF: 0.000299

Gnomad4 AMR exome AF: 0.000179

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0588

Gnomad4 SAS exome AF: 0.00114

Gnomad4 FIN exome AF: 0.0000749

Gnomad4 NFE exome AF: 0.0000477

Gnomad4 OTH exome AF: 0.00786

GnomAD4 genome AF: 0.00304 AC: 463 AN: 152334 Hom.: 17 Cov.: 33 AF XY: 0.00318 AC XY: 237 AN XY: 74490

Gnomad4 AFR AF: 0.000457

Gnomad4 AMR AF: 0.00170

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.0722

Gnomad4 SAS AF: 0.00290

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000147

Gnomad4 OTH AF: 0.00945

Alfa AF: 0.000534 Hom.: 0

Bravo AF: 0.00292

Asia WGS AF: 0.0670 AC: 232 AN: 3478

EpiCase AF: 0.000109

EpiControl AF: 0.00

ClinVar

Significance: Benign

Submissions summary: Benign:5

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not provided Benign:2

Benign, criteria provided, single submitter	clinical testing	ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories	Nov 03, 2023	- -
Benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -

not specified Benign:1

Benign, criteria provided, single submitter

clinical testing

GeneDx

Sep 08, 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

-

- -

Charcot-Marie-Tooth disease axonal type 2U;C4225400:Severe early-onset pulmonary alveolar proteinosis due to MARS deficiency Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 29, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.60
CADD	Benign	5.4
DANN	Benign	0.76
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7

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: rs2290297; hg19: chr12-57905612; COSMIC: COSV56254395; COSMIC: COSV56254395;