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GeneBe

1-150487511-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_025150.5(TARS2):c.61C>T(p.His21Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000372 in 1,614,126 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000038 ( 1 hom. )

Consequence

TARS2
NM_025150.5 missense

Scores

1
3
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.97
Variant links:
Genes affected
TARS2 (HGNC:30740): (threonyl-tRNA synthetase 2, mitochondrial) This gene encodes a member of the class-II aminoacyl-tRNA synthetase family. The encoded protein is a mitochondrial aminoacyl-tRNA synthetase. Alternative splicing results in multiple transcript variants. A related pseudogene has been identified on chromosome 4. [provided by RefSeq, Dec 2012]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.24350938).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TARS2NM_025150.5 linkuse as main transcriptc.61C>T p.His21Tyr missense_variant 1/18 ENST00000369064.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TARS2ENST00000369064.8 linkuse as main transcriptc.61C>T p.His21Tyr missense_variant 1/181 NM_025150.5 P1Q9BW92-1

Frequencies

GnomAD3 genomes
AF:
0.0000328
AC:
5
AN:
152240
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000735
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000438
AC:
11
AN:
251388
Hom.:
0
AF XY:
0.0000368
AC XY:
5
AN XY:
135886
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000704
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000376
AC:
55
AN:
1461886
Hom.:
1
Cov.:
31
AF XY:
0.0000371
AC XY:
27
AN XY:
727244
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000374
Gnomad4 NFE exome
AF:
0.0000459
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000328
AC:
5
AN:
152240
Hom.:
0
Cov.:
32
AF XY:
0.0000672
AC XY:
5
AN XY:
74382
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.0000735
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000246
Hom.:
0
Bravo
AF:
0.0000113
ExAC
AF:
0.0000412
AC:
5

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 submitterclinical testingInvitaeFeb 04, 2023This sequence change replaces histidine, which is basic and polar, with tyrosine, which is neutral and polar, at codon 21 of the TARS2 protein (p.His21Tyr). This variant is present in population databases (rs748959322, gnomAD 0.01%). This variant has not been reported in the literature in individuals affected with TARS2-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0"). 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. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.088
BayesDel_addAF
Benign
-0.30
T
BayesDel_noAF
Benign
-0.35
Cadd
Benign
21
Dann
Uncertain
0.99
Eigen
Benign
0.13
Eigen_PC
Benign
0.16
FATHMM_MKL
Uncertain
0.85
D
LIST_S2
Benign
0.82
T;T;T
M_CAP
Benign
0.013
T
MetaRNN
Benign
0.24
T;T;T
MetaSVM
Benign
-0.97
T
MutationAssessor
Benign
1.6
L;L;.
MutationTaster
Benign
1.0
D;N;N;N;N
PrimateAI
Uncertain
0.57
T
PROVEAN
Benign
-1.8
N;N;.
REVEL
Benign
0.051
Sift
Pathogenic
0.0
D;T;.
Sift4G
Benign
0.12
T;T;T
Polyphen
0.78
.;P;.
Vest4
0.45
MutPred
0.37
Gain of helix (P = 0.0199);Gain of helix (P = 0.0199);Gain of helix (P = 0.0199);
MVP
0.28
MPC
0.86
ClinPred
0.44
T
GERP RS
5.1
Varity_R
0.15
gMVP
0.49

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs748959322; hg19: chr1-150459987; COSMIC: COSV105920960; COSMIC: COSV105920960; API