rs1439213535

Variant summary

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

The NM_012208.4(HARS2):c.838C>G(p.Leu280Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000558 in 1,613,046 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)

Exomes 𝑓: 0.0000055 ( 0 hom. )

Consequence

HARS2
NM_012208.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 0.591

Variant links:

Genes affected

HARS2 (HGNC:4817): (histidyl-tRNA synthetase 2, mitochondrial) Aminoacyl-tRNA synthetases are a class of enzymes that charge tRNAs with their cognate amino acids. The protein encoded by this gene is an enzyme belonging to the class II family of aminoacyl-tRNA synthetases. Functioning in the synthesis of histidyl-transfer RNA, the enzyme plays an accessory role in the regulation of protein biosynthesis. The gene is located in a head-to-head orientation with HARS on chromosome five, where the homologous genes likely share a bidirectional promoter. Mutations in this gene are associated with the pathogenesis of Perrault syndrome, which involves ovarian dysgenesis and sensorineural hearing loss. Alternative splicing results in multiple transcript variants of this gene. [provided by RefSeq, Jul 2013]

HARS2 links:

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=0.21565816).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
HARS2	NM_012208.4 linkuse as main transcript	c.838C>G	p.Leu280Val	missense_variant	9/13	ENST00000230771.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
HARS2	ENST00000230771.9 linkuse as main transcript	c.838C>G	p.Leu280Val	missense_variant	9/13	1	NM_012208.4	A1	P49590-1

Frequencies

GnomAD3 genomes

AF:

0.00000660

AC:

AN:

151588

Hom.:

Cov.:

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251202

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135836

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

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:

0.00000880

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000547

AC:

AN:

1461458

Hom.:

Cov.:

AF XY:

0.00000688

AC XY:

AN XY:

727040

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

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:

0.00000630

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000660

AC:

AN:

151588

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

73962

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:

0.0000147

Gnomad4 OTH

AF:

0.00

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Uncertain:2

Uncertain significance, criteria provided, single submitter	clinical testing	Invitae	Jul 12, 2022	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. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. ClinVar contains an entry for this variant (Variation ID: 504905). This variant has not been reported in the literature in individuals affected with HARS2-related conditions. This variant is present in population databases (no rsID available, gnomAD 0.0009%). This sequence change replaces leucine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 280 of the HARS2 protein (p.Leu280Val). -
Uncertain significance, criteria provided, single submitter	clinical testing	ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories	Jan 18, 2018	The p.Leu280Val variant has not been reported in the medical literature, gene specific variation databases, nor has it been previously identified by our laboratory. This variant is listed in the Genome Aggregation Database (gnomAD) identified on a single chromosome out of 246,040.The leucine at position 280 is highly conserved up to C. elegans considering 13 species, and computational analyses of the effects of the p.Leu280Val variant on protein structure and function provide conflicting results (SIFT: tolerated, MutationTaster: disease causing, PolyPhen-2: benign). Altogether, there is not enough evidence to classify the p.Leu280Val variant with certainty. -

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Apr 13, 2016

The p.Leu280Val variant in HARS2 has not been reported in individuals with heari ng loss or Perrault syndrome and was absent from large population studies. Compu tational prediction tools and conservation analyses do not provide strong suppor t for or against an impact to the protein. In summary, the clinical significance of the p.Leu280Val variant is uncertain. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.083

BayesDel_addAF

Benign

-0.034

BayesDel_noAF

Benign

-0.29

Cadd

Benign

Dann

Benign

0.96

DEOGEN2

Uncertain

0.54

D;.;.;.;.;.;.;.;D;D;.;T

Eigen

Benign

-0.46

Eigen_PC

Benign

-0.58

FATHMM_MKL

Uncertain

0.89

M_CAP

Benign

0.0087

MetaRNN

Benign

0.22

T;T;T;T;T;T;T;T;T;T;T;T

MetaSVM

Benign

-0.99

MutationAssessor

Benign

1.8

L;.;.;.;.;.;.;.;L;L;.;.

MutationTaster

Benign

1.0

D;D;D;D;D;D

PrimateAI

Benign

0.42

PROVEAN

Uncertain

-3.0

D;.;.;.;.;.;.;.;.;.;D;D

REVEL

Benign

0.17

Sift

Benign

0.070

T;.;.;.;.;.;.;.;.;.;T;T

Sift4G

Benign

0.12

T;.;.;.;.;.;.;.;.;.;T;T

Polyphen

0.70

P;.;.;.;.;.;.;.;P;P;.;P

Vest4

0.48

MutPred

0.33

Gain of catalytic residue at L280 (P = 0.0028);.;.;.;.;.;.;.;Gain of catalytic residue at L280 (P = 0.0028);Gain of catalytic residue at L280 (P = 0.0028);.;.;

MVP

0.28

MPC

0.17

ClinPred

0.53

GERP RS

2.0

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.32

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over