Variant 6-106640862-T-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_018292.5(QRSL1):c.224T>C(p.Val75Ala) variant causes a missense change. The variant allele was found at a frequency of 0.0000242 in 1,613,726 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V75I) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000025 ( 0 hom. )

Consequence

QRSL1
NM_018292.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.89

Variant links:

Genes affected

QRSL1 (HGNC:21020): (glutaminyl-tRNA amidotransferase subunit QRSL1) Enables glutaminyl-tRNA synthase (glutamine-hydrolyzing) activity. Involved in glutaminyl-tRNAGln biosynthesis via transamidation and mitochondrial translation. Located in mitochondrion. Part of glutamyl-tRNA(Gln) amidotransferase complex. Implicated in combined oxidative phosphorylation deficiency 40. [provided by Alliance of Genome Resources, Apr 2022]

QRSL1 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
QRSL1	NM_018292.5 linkuse as main transcript	c.224T>C	p.Val75Ala	missense_variant	3/11	ENST00000369046.8
QRSL1	XM_011535924.3 linkuse as main transcript	c.-50T>C		5_prime_UTR_variant	4/12

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
QRSL1	ENST00000369046.8 linkuse as main transcript	c.224T>C	p.Val75Ala	missense_variant	3/11	1	NM_018292.5	P1	Q9H0R6-1
QRSL1	ENST00000369044.1 linkuse as main transcript	c.224T>C	p.Val75Ala	missense_variant	3/7	2
QRSL1	ENST00000467262.1 linkuse as main transcript	n.413T>C		non_coding_transcript_exon_variant	4/4	3

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152206

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000239

AC:

AN:

251322

Hom.:

AF XY:

0.0000221

AC XY:

AN XY:

135832

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000352

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000253

AC:

AN:

1461520

Hom.:

Cov.:

AF XY:

0.0000303

AC XY:

AN XY:

727076

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000288

Gnomad4 OTH exome

AF:

0.0000497

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152206

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74358

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000756

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Aug 22, 2022

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. This variant has not been reported in the literature in individuals affected with QRSL1-related conditions. This variant is present in population databases (rs200164281, gnomAD 0.004%). This sequence change replaces valine, which is neutral and non-polar, with alanine, which is neutral and non-polar, at codon 75 of the QRSL1 protein (p.Val75Ala). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.53

BayesDel_addAF

Benign

-0.099

BayesDel_noAF

Benign

-0.20

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.14

T;T

Eigen

Uncertain

0.27

Eigen_PC

Uncertain

0.36

FATHMM_MKL

Uncertain

0.97

LIST_S2

Uncertain

0.91

D;D

M_CAP

Benign

0.029

MetaRNN

Uncertain

0.62

D;D

MetaSVM

Benign

-0.67

MutationAssessor

Uncertain

2.2

M;.

MutationTaster

Benign

1.0

D;D

PrimateAI

Benign

0.36

PROVEAN

Uncertain

-3.2

D;D

REVEL

Uncertain

0.33

Sift

Benign

0.046

D;D

Sift4G

Benign

0.081

T;T

Polyphen

0.23

B;.

Vest4

0.49

MutPred

0.83

Loss of methylation at K76 (P = 0.0508);Loss of methylation at K76 (P = 0.0508);

MVP

0.80

MPC

0.28

ClinPred

0.14

GERP RS

5.6

Varity_R

0.21

gMVP

0.92

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over