rs924724206

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_024537.4(CARS2):​c.94C>T​(p.Arg32Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign 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. R32G) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

CARS2
NM_024537.4 missense

Scores

5
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.725

Publications

0 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.30749297).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_024537.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CARS2
NM_024537.4
MANE Select
c.94C>Tp.Arg32Trp
missense
Exon 1 of 15NP_078813.1
CARS2
NM_001352253.3
c.94C>Tp.Arg32Trp
missense
Exon 1 of 9NP_001339182.1
CARS2
NR_147942.2
n.117C>T
non_coding_transcript_exon
Exon 1 of 17

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CARS2
ENST00000257347.9
TSL:1 MANE Select
c.94C>Tp.Arg32Trp
missense
Exon 1 of 15ENSP00000257347.4
CARS2
ENST00000537394.5
TSL:5
n.94C>T
non_coding_transcript_exon
Exon 1 of 6ENSP00000437962.1
CARS2
ENST00000539269.5
TSL:3
n.52C>T
non_coding_transcript_exon
Exon 1 of 8ENSP00000440420.1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD2 exomes
AF:
0.00
AC:
0
AN:
98220
AF XY:
0.00
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1343664
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
662920
African (AFR)
AF:
0.00
AC:
0
AN:
27654
American (AMR)
AF:
0.00
AC:
0
AN:
30584
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
22842
East Asian (EAS)
AF:
0.00
AC:
0
AN:
32096
South Asian (SAS)
AF:
0.00
AC:
0
AN:
74060
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
35640
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5282
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1059784
Other (OTH)
AF:
0.00
AC:
0
AN:
55722
GnomAD4 genome
Cov.:
32

ClinVar

ClinVar submissions as Germline

Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Inborn genetic diseases (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.28
BayesDel_addAF
Benign
-0.016
T
BayesDel_noAF
Benign
-0.26
CADD
Benign
21
DANN
Benign
0.97
DEOGEN2
Uncertain
0.46
T
Eigen
Benign
-0.50
Eigen_PC
Benign
-0.77
FATHMM_MKL
Benign
0.064
N
LIST_S2
Benign
0.69
T
M_CAP
Benign
0.048
D
MetaRNN
Benign
0.31
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
1.4
L
PhyloP100
0.72
PrimateAI
Uncertain
0.77
T
PROVEAN
Uncertain
-2.8
D
REVEL
Benign
0.089
Sift
Uncertain
0.0040
D
Sift4G
Uncertain
0.014
D
Polyphen
1.0
D
Vest4
0.30
MutPred
0.43
Loss of disorder (P = 0.0072)
MVP
0.49
MPC
2.9
ClinPred
0.91
D
GERP RS
-0.39
PromoterAI
-0.066
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.10
gMVP
0.43
Mutation Taster
=92/8
polymorphism

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

Other links and lift over

dbSNP: rs924724206; hg19: chr13-111358347; API