6-30923211-G-A

Variant names:

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_020442.6(VARS2):c.2293G>A(p.Val765Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00264 in 1,612,664 control chromosomes in the GnomAD database, including 10 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another nucleotide change resulting in the same amino acid substitution has been previously reported as Likely benign in UniProt.

Frequency

Genomes: 𝑓 0.0026 ( 2 hom., cov: 33)

Exomes 𝑓: 0.0026 ( 8 hom. )

Consequence

VARS2
NM_020442.6 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:4

Conservation

PhyloP100: -0.249

Variant links:

Genes affected

VARS2 (HGNC:21642): (valyl-tRNA synthetase 2, mitochondrial) This gene encodes a mitochondrial aminoacyl-tRNA synthetase, which catalyzes the attachment of valine to tRNA(Val) for mitochondrial translation. Mutations in this gene cause combined oxidative phosphorylation deficiency-20, and are also associated with early-onset mitochondrial encephalopathies. Alternative splicing of this gene results in multiple transcript variants. [provided by RefSeq, Aug 2014]

VARS2 links:

ENSG00000288473 (HGNC:):

ENSG00000288473 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -13 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0049292743).

BP6

Variant 6-30923211-G-A is Benign according to our data. Variant chr6-30923211-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 377004.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=1, Benign=2, Likely_benign=2}.

BS1

Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.00258 (393/152340) while in subpopulation NFE AF= 0.00342 (233/68030). AF 95% confidence interval is 0.00306. There are 2 homozygotes in gnomad4. There are 194 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

BS2

High Homozygotes in GnomAd4 at 2 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
VARS2	NM_020442.6 link	c.2293G>A	p.Val765Met	missense_variant	Exon 24 of 30	ENST00000676266.1	NP_065175.4	Q5ST30-1B4E0K6B4DG77
VARS2	NM_001167734.2 link	c.2383G>A	p.Val795Met	missense_variant	Exon 24 of 30		NP_001161206.1	Q5ST30-4A0A1U9X9B3
VARS2	NM_001167733.3 link	c.1873G>A	p.Val625Met	missense_variant	Exon 23 of 29		NP_001161205.1	Q5ST30-3B4E0K6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
VARS2	ENST00000676266.1 link	c.2293G>A	p.Val765Met	missense_variant	Exon 24 of 30		NM_020442.6	ENSP00000502585.1		Q5ST30-1

Frequencies

GnomAD3 genomes

AF:

0.00258

AC:

393

AN:

152222

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000555

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00105

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000192

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.0107

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00342

Gnomad OTH

AF:

0.00287

GnomAD3 exomes

AF:

0.00275

AC:

677

AN:

246580

Hom.:

AF XY:

0.00253

AC XY:

340

AN XY:

134414

show subpopulations

Gnomad AFR exome

AF:

0.000662

Gnomad AMR exome

AF:

0.000899

Gnomad ASJ exome

AF:

0.000301

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0123

Gnomad NFE exome

AF:

0.00310

Gnomad OTH exome

AF:

0.00379

GnomAD4 exome

AF:

0.00264

AC:

3860

AN:

1460324

Hom.:

Cov.:

AF XY:

0.00261

AC XY:

1899

AN XY:

726400

show subpopulations

Gnomad4 AFR exome

AF:

0.000627

Gnomad4 AMR exome

AF:

0.000827

Gnomad4 ASJ exome

AF:

0.000153

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000233

Gnomad4 FIN exome

AF:

0.0128

Gnomad4 NFE exome

AF:

0.00266

Gnomad4 OTH exome

AF:

0.00280

GnomAD4 genome

AF:

0.00258

AC:

393

AN:

152340

Hom.:

Cov.:

AF XY:

0.00260

AC XY:

194

AN XY:

74504

show subpopulations

Gnomad4 AFR

AF:

0.000553

Gnomad4 AMR

AF:

0.00104

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000193

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.0107

Gnomad4 NFE

AF:

0.00342

Gnomad4 OTH

AF:

0.00284

Alfa

AF:

0.00264

Hom.:

Bravo

AF:

0.00181

TwinsUK

AF:

0.00189

AC:

ALSPAC

AF:

0.00104

AC:

ESP6500AA

AF:

0.000331

AC:

ESP6500EA

AF:

0.00351

AC:

ExAC

AF:

0.00269

AC:

317

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.00207

EpiControl

AF:

0.00196

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:4

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:2Benign:4

Jan 13, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter