rs11539148

chr3-49101377-T-Achr3-49101377-T-C

Variant summary

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

The NM_005051.3(QARS1):c.854A>T(p.Asn285Ile) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N285S) has been classified as Benign.

• Frequency: Genomes: not found (cov: 33)
• Consequence: QARS1 NM_005051.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 5.76

Genes affected

QARS1 (HGNC:9751): (glutaminyl-tRNA synthetase 1) Aminoacyl-tRNA synthetases catalyze the aminoacylation of tRNA by their cognate amino acid. Because of their central role in linking amino acids with nucleotide triplets contained in tRNAs, aminoacyl-tRNA synthetases are thought to be among the first proteins that appeared in evolution. In metazoans, 9 aminoacyl-tRNA synthetases specific for glutamine (gln), glutamic acid (glu), and 7 other amino acids are associated within a multienzyme complex. Although present in eukaryotes, glutaminyl-tRNA synthetase (QARS) is absent from many prokaryotes, mitochondria, and chloroplasts, in which Gln-tRNA(Gln) is formed by transamidation of the misacylated Glu-tRNA(Gln). Glutaminyl-tRNA synthetase belongs to the class-I aminoacyl-tRNA synthetase family. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2013]

ACMG classification

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
QARS1	NM_005051.3	c.854A>T	p.Asn285Ile	missense_variant	10/24	ENST00000306125.12
QARS1	NM_001272073.2	c.821A>T	p.Asn274Ile	missense_variant	10/24
QARS1	XM_017006965.3	c.854A>T	p.Asn285Ile	missense_variant	10/23
QARS1	NR_073590.2	n.829A>T		non_coding_transcript_exon_variant	10/24

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
QARS1	ENST00000306125.12	c.854A>T	p.Asn285Ile	missense_variant	10/24	1	NM_005051.3	P1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD3 exomes AF: 0.00000398 AC: 1 AN: 251102 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 135712

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000290

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.91
BayesDel_addAF	Benign	-0.023	T
BayesDel_noAF	Benign	-0.19
Cadd	Uncertain	25
Dann	Uncertain	0.99
DEOGEN2	Uncertain	0.70	D;.;D;T;.
Eigen	Uncertain	0.40
Eigen_PC	Uncertain	0.40
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Pathogenic	0.98	D;D;D;D;D
M_CAP	Benign	0.085	D
MetaRNN	Uncertain	0.72	D;D;D;D;D
MetaSVM	Benign	-0.68	T
MutationAssessor	Benign	1.3	L;.;.;.;.
MutationTaster	Benign	1.0	D;D;N
PrimateAI	Uncertain	0.74	T
PROVEAN	Pathogenic	-8.3	D;D;.;.;.
REVEL	Benign	0.29
Sift	Benign	0.049	D;T;.;.;.
Sift4G	Benign	0.37	T;T;T;.;D
Polyphen		0.96	D;.;.;.;.
Vest4		0.88
MutPred		0.47		Gain of methylation at K282 (P = 0.0909);.;.;.;.;
MVP		0.41
MPC		1.1
ClinPred		0.99	D
GERP RS		4.6
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.95
gMVP		0.93

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: rs11539148; hg19: chr3-49138810;