rs398123036

Variant names:

Variant summary

Our verdict is Pathogenic. The variant received 10 ACMG points: 10P and 0B. PM2PP5_Very_Strong

The NM_015340.4(LARS2):c.1886C>T(p.Thr629Met) variant causes a missense change. The variant allele was found at a frequency of 0.0000254 in 1,614,012 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely pathogenic (★★). Synonymous variant affecting the same amino acid position (i.e. T629T) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000026 ( 0 hom. )

Consequence

LARS2
NM_015340.4 missense

Scores

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:3O:1

Conservation

PhyloP100: 3.85

Publications

19 publications found

Variant links:

Genes affected

LARS2 (HGNC:17095): (leucyl-tRNA synthetase 2, mitochondrial) This gene encodes a class 1 aminoacyl-tRNA synthetase, mitochondrial leucyl-tRNA synthetase. Each of the twenty aminoacyl-tRNA synthetases catalyzes the aminoacylation of a specific tRNA or tRNA isoaccepting family with the cognate amino acid. [provided by RefSeq, Jul 2008]

LARS2 Gene-Disease associations (from GenCC):

hydrops-lactic acidosis-sideroblastic anemia-multisystemic failure syndrome
Inheritance: AR Classification: STRONG, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
Perrault syndrome
Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, ClinGen
Perrault syndrome 4
Inheritance: AR Classification: STRONG Submitted by: G2P, PanelApp Australia, Labcorp Genetics (formerly Invitae)

LARS2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 10 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP5

Variant 3-45516118-C-T is Pathogenic according to our data. Variant chr3-45516118-C-T is described in ClinVar as Pathogenic/Likely_pathogenic. ClinVar VariationId is 55872.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LARS2	NM_015340.4 link	c.1886C>T	p.Thr629Met	missense_variant	Exon 17 of 22	ENST00000645846.2	NP_056155.1	Q15031

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
LARS2	ENST00000645846.2 link	c.1886C>T	p.Thr629Met	missense_variant	Exon 17 of 22		NM_015340.4	ENSP00000495093.1		Q15031

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152158

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000637

AC:

AN:

251264

AF XY:

0.0000663

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000145

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000544

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000528

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000260

AC:

AN:

1461736

Hom.:

Cov.:

AF XY:

0.0000220

AC XY:

AN XY:

727158

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33472

American (AMR)

AF:

0.000157

AC:

AN:

44696

Ashkenazi Jewish (ASJ)

AF:

0.0000383

AC:

AN:

26122

East Asian (EAS)

AF:

0.00

AC:

AN:

39688

South Asian (SAS)

AF:

0.0000696

AC:

AN:

86238

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53416

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000198

AC:

AN:

1111944

Other (OTH)

AF:

0.0000331

AC:

AN:

60392

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.446

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome 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

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152276

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74448

show subpopulations

African (AFR)

AF:

0.0000481

AC:

AN:

41544

American (AMR)

AF:

0.00

AC:

AN:

15306

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5182

South Asian (SAS)

AF:

0.000207

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10608

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68022

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.625

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:

0.0000197

Hom.:

Bravo

AF:

0.0000151

ExAC

AF:

0.0000824

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Pathogenic/Likely pathogenic

Submissions summary: Pathogenic:3Other:1

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Nonsyndromic genetic hearing loss

Pathogenic:1

Jul 15, 2021

INGEBI, INGEBI / CONICET

Significance:Pathogenic

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Based on ACMG/AMP guidelines and Hearing Loss Expert Panel specific criteria: The filtering allele frequency of the T629M in the LARS2 gene is 0.005% ( 5/35406 with 95% CI) in latino population in gnomAD database meeting PM2. This variant has been found at least in two patients in trans with pathogenic variants and seggregated in two siblings (PM3_Strong, PP1, PP4; PMID: 23541342 and internal data). Functional studies in yeast are not conclusive evidence of mutation pathogenicity so this information is not counted. PM2, PM3_Strong, PP1_Sup, PP4: T629M is classified as Likely Pathogenic. -

not provided

Pathogenic:1

Jan 09, 2025

GeneDx

Significance:Likely pathogenic

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 has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 25254289, 39052101, 27650058, 35982127, 23541342, 34997062) -

Perrault syndrome 4

Pathogenic:1

Apr 04, 2013

OMIM

Significance:Pathogenic

Review Status:no assertion criteria provided

Collection Method:literature only

- -

Perrault syndrome

Other:1

GeneReviews

Significance:not provided

Review Status:no classification provided

Collection Method:literature only

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.10

BayesDel_addAF

Benign

-0.096

BayesDel_noAF

Benign

-0.12

CADD

Pathogenic

(source)

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.66

D;D;.;D;D

Eigen

Uncertain

0.59

Eigen_PC

Uncertain

0.50

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.94

.;.;D;.;D

M_CAP

Uncertain

0.13

MetaRNN

Uncertain

0.61

D;D;D;D;D

MetaSVM

Uncertain

0.31

MutationAssessor

Uncertain

2.5

M;M;.;M;M

PhyloP100

3.9

PrimateAI

Uncertain

0.51

PROVEAN

Pathogenic

-4.9

D;D;D;.;.

REVEL

Uncertain

0.55

Sift

Uncertain

0.0040

D;D;D;.;.

Sift4G

Uncertain

0.0030

D;D;D;.;.

Polyphen

1.0

D;D;D;D;D

Vest4

0.78

MutPred

0.59

Gain of glycosylation at T629 (P = 0.0254);Gain of glycosylation at T629 (P = 0.0254);.;Gain of glycosylation at T629 (P = 0.0254);Gain of glycosylation at T629 (P = 0.0254);

MVP

0.88

MPC

0.81

ClinPred

0.82

GERP RS

5.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.19

Mutation Taster

=29/71

disease causing (ClinVar)

(source)

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

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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