chr14-100334985-C-T

Variant names:

• chr14-100334985-C-T
• NM_004184.4:c.1306G>A

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 2P and 3B. PM2 BP4_Moderate BS2_Supporting

The NM_004184.4(WARS1):​c.1306G>A​(p.Glu436Lys) variant causes a missense change. The variant allele was found at a frequency of 0.00000342 in 1,461,876 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000034 (0 hom.)
• Consequence: WARS1 NM_004184.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.93

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]

ENSG00000258666 (HGNC:58289):

ACMG classification

Verdict is Likely_benign. Variant got -1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.23953095).
• BS2: High AC in GnomAdExome4 at 5 AD gene. Variant has AC lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
WARS1	NM_004184.4	c.1306G>A	p.Glu436Lys	missense_variant	Exon 11 of 11	ENST00000392882.7	NP_004175.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
WARS1	ENST00000392882.7	c.1306G>A	p.Glu436Lys	missense_variant	Exon 11 of 11	1	NM_004184.4	ENSP00000376620.2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000342 AC: 5 AN: 1461876 Hom.: 0 Cov.: 30 AF XY: 0.00000275 AC XY: 2 AN XY: 727238

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000450

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Uncertain:1

Mar 28, 2023

GeneDx

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.14
BayesDel_addAF	Benign	0.0042	T
BayesDel_noAF	Benign	-0.23
CADD	Benign	23
DANN	Uncertain	0.99
DEOGEN2	Benign	0.18	T;.;T;.;T;.
Eigen	Benign	-0.28
Eigen_PC	Benign	-0.19
FATHMM_MKL	Uncertain	0.94	D
LIST_S2	Pathogenic	0.99	.;.;.;.;D;D
M_CAP	Benign	0.043	D
MetaRNN	Benign	0.24	T;T;T;T;T;T
MetaSVM	Benign	-0.69	T
MutationAssessor	Benign	1.8	L;.;L;.;L;.
PrimateAI	Benign	0.44	T
PROVEAN	Benign	-1.5	N;N;N;N;N;N
REVEL	Benign	0.17
Sift	Benign	0.21	T;T;T;T;T;T
Sift4G	Benign	0.31	T;T;T;T;T;T
Polyphen		0.0010	B;.;B;.;B;.
Vest4		0.35
MutPred		0.53		Gain of MoRF binding (P = 0.0309);.;Gain of MoRF binding (P = 0.0309);.;Gain of MoRF binding (P = 0.0309);.;
MVP		0.42
MPC		0.52
ClinPred		0.69	D
GERP RS		5.2
Varity_R		0.44
gMVP		0.71

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr14-100801322; COSMIC: COSV100690221; COSMIC: COSV100690221;