rs1553635112

Positions:

chr3-45491797-C-G

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_ModeratePP5_Moderate

The NM_015340.4(LARS2):c.1520C>G(p.Pro507Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000434 in 1,613,098 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

LARS2
NM_015340.4 missense

Scores

Clinical Significance

Likely pathogenic criteria provided, single submitter P:1

Conservation

PhyloP100: 7.56

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 links:

LARS2-AS1 (HGNC:40796): (LARS2 antisense RNA 1)

LARS2-AS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.905

PP5

Variant 3-45491797-C-G is Pathogenic according to our data. Variant chr3-45491797-C-G is described in ClinVar as [Likely_pathogenic]. Clinvar id is 517248.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
LARS2	NM_015340.4 linkuse as main transcript	c.1520C>G	p.Pro507Arg	missense_variant	13/22	ENST00000645846.2
LARS2-AS1	NR_048543.1 linkuse as main transcript	n.517+3447G>C		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
LARS2	ENST00000645846.2 linkuse as main transcript	c.1520C>G	p.Pro507Arg	missense_variant	13/22		NM_015340.4	P1
LARS2-AS1	ENST00000442534.2 linkuse as main transcript	n.517+3447G>C		intron_variant, non_coding_transcript_variant		4

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152180

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

GnomAD4 exome

AF:

0.00000411

AC:

AN:

1460918

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

726698

show subpopulations

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:

0.00000540

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152180

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74342

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

Bravo

AF:

0.00000378

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Rare genetic deafness

Pathogenic:1

Likely pathogenic, criteria provided, single submitter

clinical testing

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Jun 22, 2017

The p.Pro507Arg variant in LARS2 has been identified by our laboratory in 1 indi vidual with hearing loss who was compound heterozygous for this variant and a li kely pathogenic LARS2 variant, and both variants segregated with hearing loss in an affected sibling. The variant was absent from large population studies. In a ddition, computational prediction tools and conservation analysis suggest the va riant may impact the protein. In summary, although additional studies are requir ed to fully establish its clinical significance, the p.Pro507Arg variant is like ly pathogenic. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.25

BayesDel_addAF

Pathogenic

0.39

BayesDel_noAF

Pathogenic

0.32

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.67

D;D;.;D;D

Eigen

Pathogenic

1.0

Eigen_PC

Pathogenic

0.89

FATHMM_MKL

Pathogenic

0.99

M_CAP

Pathogenic

0.31

MetaRNN

Pathogenic

0.90

D;D;D;D;D

MetaSVM

Pathogenic

0.82

MutationAssessor

Pathogenic

3.8

H;H;.;H;H

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Uncertain

0.55

PROVEAN

Pathogenic

-9.0

D;D;D;.;.

REVEL

Pathogenic

0.75

Sift

Pathogenic

0.0

D;D;D;.;.

Sift4G

Pathogenic

0.0

D;D;D;.;.

Polyphen

1.0

D;D;D;D;D

Vest4

0.83

MutPred

0.57

Gain of MoRF binding (P = 0.0045);Gain of MoRF binding (P = 0.0045);.;Gain of MoRF binding (P = 0.0045);Gain of MoRF binding (P = 0.0045);

MVP

0.93

MPC

0.86

ClinPred

1.0

GERP RS

5.9

Varity_R

0.83

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