rs1017986679

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 2P and 10B. PM2BP4_StrongBP6_ModerateBS1

The NM_020442.6(VARS2):​c.-36G>A variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000993 in 1,218,842 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.00046 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000048 ( 0 hom. )

Consequence

VARS2
NM_020442.6 5_prime_UTR

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 1.06
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]
GTF2H4 (HGNC:4658): (general transcription factor IIH subunit 4) Enables RNA polymerase II general transcription initiation factor activity. Involved in transcription by RNA polymerase II. Located in nuclear speck. Part of core TFIIH complex portion of holo TFIIH complex and transcription factor TFIID complex. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.76).
BP6
Variant 6-30914336-G-A is Benign according to our data. Variant chr6-30914336-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 507743.Status of the report is criteria_provided_single_submitter, 1 stars.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00046 (70/152178) while in subpopulation AFR AF= 0.0015 (62/41428). AF 95% confidence interval is 0.0012. There are 0 homozygotes in gnomad4. There are 34 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
VARS2NM_020442.6 linkc.-36G>A 5_prime_UTR_variant Exon 1 of 30 ENST00000676266.1 NP_065175.4 Q5ST30-1B4E0K6B4DG77
VARS2NM_001167734.2 linkc.-76G>A 5_prime_UTR_variant Exon 1 of 30 NP_001161206.1 Q5ST30-4A0A1U9X9B3
VARS2NM_001167733.3 linkc.-228G>A 5_prime_UTR_variant Exon 1 of 29 NP_001161205.1 Q5ST30-3B4E0K6
GTF2H4NM_001517.5 linkc.*353G>A downstream_gene_variant ENST00000259895.9 NP_001508.1 Q92759-1A0A1U9X7S4

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
VARS2ENST00000676266 linkc.-36G>A 5_prime_UTR_variant Exon 1 of 30 NM_020442.6 ENSP00000502585.1 Q5ST30-1
GTF2H4ENST00000259895.9 linkc.*353G>A downstream_gene_variant 1 NM_001517.5 ENSP00000259895.4 Q92759-1

Frequencies

GnomAD3 genomes
AF:
0.000460
AC:
70
AN:
152178
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00150
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000392
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:
0.000956
GnomAD4 exome
AF:
0.0000478
AC:
51
AN:
1066664
Hom.:
0
Cov.:
19
AF XY:
0.0000415
AC XY:
21
AN XY:
505992
show subpopulations
Gnomad4 AFR exome
AF:
0.00147
Gnomad4 AMR exome
AF:
0.000467
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000133
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000221
Gnomad4 OTH exome
AF:
0.000207
GnomAD4 genome
AF:
0.000460
AC:
70
AN:
152178
Hom.:
0
Cov.:
32
AF XY:
0.000457
AC XY:
34
AN XY:
74338
show subpopulations
Gnomad4 AFR
AF:
0.00150
Gnomad4 AMR
AF:
0.000392
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.000956
Alfa
AF:
0.000498
Hom.:
0
Bravo
AF:
0.000574

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Benign:1
Oct 16, 2017
GeneDx
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

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. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.76
CADD
Benign
12
DANN
Benign
0.82
RBP_binding_hub_radar
0.97
RBP_regulation_power_radar
3.5

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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs1017986679; hg19: chr6-30882113; API