rs367776807

Variant summary

Our verdict is Benign. The variant received -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS1

The NM_005051.3(QARS1):​c.1957-9C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000159 in 1,613,994 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 31)
Exomes 𝑓: 0.00016 ( 1 hom. )

Consequence

QARS1
NM_005051.3 intron

Scores

2
Splicing: ADA: 0.00001982
2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -0.492

Publications

0 publications found
Variant links:
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]
QARS1 Gene-Disease associations (from GenCC):
  • diffuse cerebral and cerebellar atrophy - intractable seizures - progressive microcephaly syndrome
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, ClinGen, Orphanet
  • microcephaly-short stature-intellectual disability-facial dysmorphism syndrome
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -16 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.83).
BP6
Variant 3-49098489-G-A is Benign according to our data. Variant chr3-49098489-G-A is described in ClinVar as Likely_benign. ClinVar VariationId is 380025.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population mid. GnomAdExome4 allele frequency = 0.000164 (239/1461666) while in subpopulation MID AF = 0.00277 (16/5768). AF 95% confidence interval is 0.00174. There are 1 homozygotes in GnomAdExome4. There are 115 alleles in the male GnomAdExome4 subpopulation. Median coverage is 31. This position passed quality control check.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
QARS1NM_005051.3 linkc.1957-9C>T intron_variant Intron 20 of 23 ENST00000306125.12 NP_005042.1 P47897-1B7Z840
QARS1NM_001272073.2 linkc.1924-9C>T intron_variant Intron 20 of 23 NP_001259002.1 P47897-2B7Z840
QARS1NR_073590.2 linkn.1932-9C>T intron_variant Intron 20 of 23
QARS1XM_017006965.3 linkc.1957-9C>T intron_variant Intron 20 of 22 XP_016862454.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
QARS1ENST00000306125.12 linkc.1957-9C>T intron_variant Intron 20 of 23 1 NM_005051.3 ENSP00000307567.6 P47897-1

Frequencies

GnomAD3 genomes
AF:
0.000118
AC:
18
AN:
152212
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000724
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:
0.00316
Gnomad NFE
AF:
0.000176
Gnomad OTH
AF:
0.000957
GnomAD2 exomes
AF:
0.0000878
AC:
22
AN:
250474
AF XY:
0.0000886
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000869
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000133
Gnomad OTH exome
AF:
0.000327
GnomAD4 exome
AF:
0.000164
AC:
239
AN:
1461666
Hom.:
1
Cov.:
31
AF XY:
0.000158
AC XY:
115
AN XY:
727134
show subpopulations
African (AFR)
AF:
0.000568
AC:
19
AN:
33480
American (AMR)
AF:
0.0000894
AC:
4
AN:
44718
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26128
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.0000348
AC:
3
AN:
86236
European-Finnish (FIN)
AF:
0.0000375
AC:
2
AN:
53308
Middle Eastern (MID)
AF:
0.00277
AC:
16
AN:
5768
European-Non Finnish (NFE)
AF:
0.000154
AC:
171
AN:
1111942
Other (OTH)
AF:
0.000397
AC:
24
AN:
60386
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.472
Heterozygous variant carriers
0
15
30
45
60
75
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
10
20
30
40
50
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000112
AC:
17
AN:
152328
Hom.:
0
Cov.:
31
AF XY:
0.000134
AC XY:
10
AN XY:
74496
show subpopulations
African (AFR)
AF:
0.0000722
AC:
3
AN:
41566
American (AMR)
AF:
0.00
AC:
0
AN:
15304
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5188
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10616
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
292
European-Non Finnish (NFE)
AF:
0.000176
AC:
12
AN:
68034
Other (OTH)
AF:
0.000947
AC:
2
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.503
Heterozygous variant carriers
0
1
3
4
6
7
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0000893
Hom.:
0
Bravo
AF:
0.0000982

ClinVar

Significance: Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
-
Breakthrough Genomics, Breakthrough Genomics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Mar 03, 2021
GeneDx
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Diffuse cerebral and cerebellar atrophy - intractable seizures - progressive microcephaly syndrome Benign:1
Jan 14, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.83
CADD
Benign
0.11
DANN
Benign
0.60
PhyloP100
-0.49
PromoterAI
-0.073
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.0
Mutation Taster
=100/0
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000020
dbscSNV1_RF
Benign
0.0020
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

Other links and lift over

dbSNP: rs367776807; hg19: chr3-49135922; API