rs191391414

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 4P and 1B. PM1PP3_ModerateBS1_Supporting

The NM_002109.6(HARS1):c.410G>A(p.Arg137Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000208 in 1,613,940 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 13/22 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R137W) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000098 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00022 ( 0 hom. )

Consequence

HARS1
NM_002109.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts P:3U:7

Conservation

PhyloP100: 7.57

Publications

21 publications found

Variant links:

Genes affected

HARS1 (HGNC:4816): (histidyl-tRNA synthetase 1) Aminoacyl-tRNA synthetases are a class of enzymes that charge tRNAs with their cognate amino acids. The protein encoded by this gene is a cytoplasmic enzyme which belongs to the class II family of aminoacyl-tRNA synthetases. The enzyme is responsible for the synthesis of histidyl-transfer RNA, which is essential for the incorporation of histidine into proteins. The gene is located in a head-to-head orientation with HARSL on chromosome five, where the homologous genes share a bidirectional promoter. The gene product is a frequent target of autoantibodies in the human autoimmune disease polymyositis/dermatomyositis. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Apr 2012]

HARS1 Gene-Disease associations (from GenCC):

autosomal dominant Charcot-Marie-Tooth disease type 2W
Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae)
Usher syndrome type 3B
Inheritance: AR Classification: STRONG, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), G2P
Usher syndrome type 3
Inheritance: AR Classification: SUPPORTIVE, NO_KNOWN Submitted by: Orphanet, ClinGen

HARS1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

PM1

In a hotspot region, there are 3 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 11 uncertain in NM_002109.6

PP3

MetaRNN computational evidence supports a deleterious effect, 0.877

BS1

Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.0000985 (15/152288) while in subpopulation NFE AF = 0.000176 (12/68022). AF 95% confidence interval is 0.000102. There are 0 homozygotes in GnomAd4. There are 5 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
HARS1	NM_002109.6 link	c.410G>A	p.Arg137Gln	missense_variant	Exon 5 of 13	ENST00000504156.7	NP_002100.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
HARS1	ENST00000504156.7 link	c.410G>A	p.Arg137Gln	missense_variant	Exon 5 of 13	1	NM_002109.6	ENSP00000425634.1

Frequencies

GnomAD3 genomes

AF:

0.0000986

AC:

AN:

152170

Hom.:

Cov.:

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:

0.00

Gnomad NFE

AF:

0.000176

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000716

AC:

AN:

251332

AF XY:

0.0000515

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000150

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000220

AC:

321

AN:

1461652

Hom.:

Cov.:

AF XY:

0.000210

AC XY:

153

AN XY:

727118

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33468

American (AMR)

AF:

0.0000447

AC:

AN:

44704

Ashkenazi Jewish (ASJ)

AF:

0.0000383

AC:

AN:

26132

East Asian (EAS)

AF:

0.00

AC:

AN:

39688

South Asian (SAS)

AF:

0.00

AC:

AN:

86238

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53400

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.000283

AC:

315

AN:

1111868

Other (OTH)

AF:

0.0000497

AC:

AN:

60386

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.470

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

100

<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:

0.0000985

AC:

AN:

152288

Hom.:

Cov.:

AF XY:

0.0000671

AC XY:

AN XY:

74464

show subpopulations

African (AFR)

AF:

0.0000722

AC:

AN:

41552

American (AMR)

AF:

0.00

AC:

AN:

15292

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5184

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000176

AC:

AN:

68022

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.522

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.000164

Hom.:

Bravo

AF:

0.000102

TwinsUK

AF:

0.000809

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000741

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.000164

EpiControl

AF:

0.000178

ClinVar

Significance: Uncertain significance

Submissions summary: Pathogenic:3Uncertain:7

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Pathogenic:2Uncertain:3

Clinical Genetics, Academic Medical Center

Significance:Likely pathogenic

Review Status:flagged submission

Collection Method:clinical testing

- -

Jan 02, 2024

Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center

Significance:Likely pathogenic

Review Status:flagged submission

Collection Method:clinical testing

- -

Aug 30, 2017

Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Oct 04, 2022

GeneDx

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Reported as a heterozygous variant in an individual with peripheral neuropathy (Vester et al., 2013); Reported with a variant on the opposite allele (in trans) in a patient with Usher syndrome in published literature (Tiwari et al., 2016); Published functional studies demonstrate the R137Q variant reduces neurite outgrowth as a result of decreased protein synthesis (Mullen et al., 2021); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 23465884, 26072516, 29790872, 27353947, 33236345, 24917879, 23913540, 27876679, 32940403, 22930593, 29288497, 32372680, 32543048) -

Autosomal dominant Charcot-Marie-Tooth disease type 2W

Pathogenic:1Uncertain:1

Jan 04, 2024

HudsonAlpha Institute for Biotechnology, HudsonAlpha Institute for Biotechnology

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:research

- -

Jan 01, 2013

OMIM

Significance:Pathogenic

Review Status:flagged submission

Collection Method:literature only

- -

not specified

Uncertain:2

Jun 05, 2023

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.410G>A (p.R137Q) alteration is located in exon 5 (coding exon 5) of the HARS gene. This alteration results from a G to A substitution at nucleotide position 410, causing the arginine (R) at amino acid position 137 to be replaced by a glutamine (Q). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

May 04, 2022

Mendelics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Usher syndrome type 3B

Uncertain:1

Nov 24, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 137 of the HARS protein (p.Arg137Gln). This variant is present in population databases (rs191391414, gnomAD 0.02%). This missense change has been observed in individual(s) with HARS-related conditions (PMID: 22930593, 27353947, 29790872, 36964972). This variant is also known as c.290G>A (p.Arg97Gln). ClinVar contains an entry for this variant (Variation ID: 40062). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is expected to disrupt HARS protein function with a positive predictive value of 80%. Experimental studies have shown that this missense change affects HARS function (PMID: 22930593, 32543048). 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

Pathogenic

0.98

BayesDel_addAF

Pathogenic

0.22

BayesDel_noAF

Pathogenic

0.34

CADD

Pathogenic

(source)

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.79

.;D;D;D;.;.

Eigen

Pathogenic

1.2

Eigen_PC

Pathogenic

1.1

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Pathogenic

1.0

D;.;D;D;D;D

M_CAP

Pathogenic

0.44

MetaRNN

Pathogenic

0.88

D;D;D;D;D;D

MetaSVM

Pathogenic

0.88

MutationAssessor

Pathogenic

5.4

H;H;H;.;.;.

PhyloP100

7.6

PrimateAI

Pathogenic

0.88

PROVEAN

Uncertain

-3.8

D;.;D;D;D;D

REVEL

Pathogenic

0.74

Sift

Pathogenic

0.0

D;.;D;D;D;D

Sift4G

Pathogenic

0.0

D;.;D;D;D;D

Polyphen

1.0

.;D;D;.;.;.

Vest4

0.96

MVP

0.96

MPC

1.2

ClinPred

1.0

GERP RS

5.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.97

gMVP

0.93

Mutation Taster

=1/99

disease causing (ClinVar)

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.10

Details are displayed if max score is > 0.2

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

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over