Genetic Variant WARS1:p.Ile416Val (chr14-100337070-T-C) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_004184.4(WARS1):c.1246A>G(p.Ile416Val) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,478 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/24 in silico tools predict a benign outcome for this variant. 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. I416L) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

WARS1
NM_004184.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 5.11

Variant links:

Genes affected

WARS1 (HGNC:12729): (tryptophanyl-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. Two forms of tryptophanyl-tRNA synthetase exist, a cytoplasmic form, named WARS, and a mitochondrial form, named WARS2. Tryptophanyl-tRNA synthetase (WARS) catalyzes the aminoacylation of tRNA(trp) with tryptophan and is induced by interferon. Tryptophanyl-tRNA synthetase belongs to the class I tRNA synthetase family. Four transcript variants encoding two different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

WARS1 links:

ENSG00000258666 (HGNC:58289):

ENSG00000258666 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
WARS1	NM_004184.4 link	c.1246A>G	p.Ile416Val	missense_variant	Exon 10 of 11	ENST00000392882.7	NP_004175.2	P23381-1A0A024R6K8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
WARS1	ENST00000392882.7 link	c.1246A>G	p.Ile416Val	missense_variant	Exon 10 of 11	1	NM_004184.4	ENSP00000376620.2		P23381-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461478

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727018

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33478

American (AMR)

AF:

0.00

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26128

East Asian (EAS)

AF:

0.00

AC:

AN:

39696

South Asian (SAS)

AF:

0.00

AC:

AN:

86250

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53412

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5762

European-Non Finnish (NFE)

AF:

9.00e-7

AC:

AN:

1111652

Other (OTH)

AF:

0.00

AC:

AN:

60378

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.575

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Benign

-0.0039

BayesDel_noAF

Benign

-0.24

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.19

T;.;T;.;T;.

Eigen

Benign

0.17

Eigen_PC

Uncertain

0.32

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.95

.;.;.;.;D;D

M_CAP

Benign

0.023

MetaRNN

Benign

0.23

T;T;T;T;T;T

MetaSVM

Benign

-0.48

MutationAssessor

Benign

1.7

L;.;L;.;L;.

PhyloP100

5.1

PrimateAI

Benign

0.45

PROVEAN

Benign

-0.92

N;N;N;N;N;N

REVEL

Benign

0.21

Sift

Benign

0.13

T;T;T;T;T;T

Sift4G

Benign

0.14

T;T;T;T;T;T

Polyphen

0.022

B;.;B;.;B;.

Vest4

0.34

MutPred

0.49

Gain of phosphorylation at Y420 (P = 0.096);.;Gain of phosphorylation at Y420 (P = 0.096);.;Gain of phosphorylation at Y420 (P = 0.096);.;

MVP

0.58

MPC

0.61

ClinPred

0.62

GERP RS

5.7

Varity_R

0.30

gMVP

0.47

Mutation Taster

=84/16

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.89

Details are displayed if max score is > 0.2

DS_DG_spliceai

0.89

Position offset: 1

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

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