rs79081036

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_024537.4(CARS2):c.1132C>T(p.Arg378Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00219 in 1,612,036 control chromosomes in the GnomAD database, including 82 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R378H) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.012 ( 46 hom., cov: 33)

Exomes 𝑓: 0.0012 ( 36 hom. )

Consequence

CARS2
NM_024537.4 missense

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 1.45

Publications

1 publications found

Variant links:

Genes affected

CARS2 (HGNC:25695): (cysteinyl-tRNA synthetase 2, mitochondrial) This gene encodes a putative member of the class I family of aminoacyl-tRNA synthetases. These enzymes play a critical role in protein biosynthesis by charging tRNAs with their cognate amino acids. This protein is encoded by the nuclear genome but is likely to be imported to the mitochondrion where it is thought to catalyze the ligation of cysteine to tRNA molecules. A splice-site mutation in this gene has been associated with a novel progressive myoclonic epilepsy disease with similar symptoms to MERRF syndrome. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jun 2017]

CARS2 Gene-Disease associations (from GenCC):

combined oxidative phosphorylation defect type 27
Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, Laboratory for Molecular Medicine, G2P
mitochondrial disease
Inheritance: AR Classification: MODERATE Submitted by: ClinGen

CARS2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0061453283).

BP6

Variant 13-110647162-G-A is Benign according to our data. Variant chr13-110647162-G-A is described in ClinVar as Benign. ClinVar VariationId is 382065.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.012 (1821/152334) while in subpopulation AFR AF = 0.0419 (1744/41582). AF 95% confidence interval is 0.0403. There are 46 homozygotes in GnomAd4. There are 817 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 46 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CARS2	NM_024537.4 link	c.1132C>T	p.Arg378Cys	missense_variant	Exon 11 of 15	ENST00000257347.9	NP_078813.1	Q9HA77B7Z7E6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CARS2	ENST00000257347.9 link	c.1132C>T	p.Arg378Cys	missense_variant	Exon 11 of 15	1	NM_024537.4	ENSP00000257347.4		Q9HA77

Frequencies

GnomAD3 genomes

AF:

0.0119

AC:

1814

AN:

152216

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0419

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00327

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:

0.000132

Gnomad OTH

AF:

0.00860

GnomAD2 exomes

AF:

0.00297

AC:

734

AN:

247018

AF XY:

0.00219

show subpopulations

Gnomad AFR exome

AF:

0.0433

Gnomad AMR exome

AF:

0.00108

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000537

Gnomad OTH exome

AF:

0.000829

GnomAD4 exome

AF:

0.00117

AC:

1705

AN:

1459702

Hom.:

Cov.:

AF XY:

0.000985

AC XY:

715

AN XY:

726014

show subpopulations

African (AFR)

AF:

0.0435

AC:

1455

AN:

33452

American (AMR)

AF:

0.00132

AC:

AN:

44610

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26114

East Asian (EAS)

AF:

0.00

AC:

AN:

39684

South Asian (SAS)

AF:

0.000105

AC:

AN:

85908

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52352

Middle Eastern (MID)

AF:

0.000174

AC:

AN:

5742

European-Non Finnish (NFE)

AF:

0.0000288

AC:

AN:

1111524

Other (OTH)

AF:

0.00247

AC:

149

AN:

60316

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.464

Heterozygous variant carriers

175

262

350

437

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

138

184

230

<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:

0.0120

AC:

1821

AN:

152334

Hom.:

Cov.:

AF XY:

0.0110

AC XY:

817

AN XY:

74494

show subpopulations

African (AFR)

AF:

0.0419

AC:

1744

AN:

41582

American (AMR)

AF:

0.00327

AC:

AN:

15308

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5180

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10628

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000132

AC:

AN:

68020

Other (OTH)

AF:

0.00851

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.501

Heterozygous variant carriers

186

279

372

465

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

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

Alfa

AF:

0.00279

Hom.:

Bravo

AF:

0.0137

ESP6500AA

AF:

0.0472

AC:

208

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.00384

AC:

466

Asia WGS

AF:

0.00202

AC:

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Benign

Submissions summary: Benign:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:1

Mar 30, 2016

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Combined oxidative phosphorylation defect type 27

Benign:1

Feb 03, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

CARS2-related disorder

Benign:1

Jul 18, 2019

PreventionGenetics, part of Exact Sciences

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

not provided

Benign:1

Breakthrough Genomics, Breakthrough Genomics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:not provided

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.13

BayesDel_addAF

Benign

-0.45

BayesDel_noAF

Benign

-0.39

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.52

Eigen

Benign

0.050

Eigen_PC

Benign

-0.10

FATHMM_MKL

Benign

0.071

LIST_S2

Uncertain

0.96

MetaRNN

Benign

0.0061

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.4

PhyloP100

1.5

PrimateAI

Benign

0.46

PROVEAN

Uncertain

-4.1

REVEL

Benign

0.18

Sift

Benign

0.043

Sift4G

Uncertain

0.053

Polyphen

0.99

Vest4

0.53

MVP

0.57

MPC

0.58

ClinPred

0.024

GERP RS

4.2

PromoterAI

0.063

Neutral

(source)

Varity_R

0.12

gMVP

0.35

Mutation Taster

=92/8

polymorphism

(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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

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