chr11-3038078-G-C

Position:

chr11-3038078-G-C

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBS1_Supporting

The NM_001014437.3(CARS1):c.773C>G(p.Thr258Arg) variant causes a missense change. The variant allele was found at a frequency of 0.0000471 in 1,613,674 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00022 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000029 ( 0 hom. )

Consequence

CARS1
NM_001014437.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.06

Variant links:

Genes affected

CARS1 (HGNC:1493): (cysteinyl-tRNA synthetase 1) This gene encodes a class 1 aminoacyl-tRNA synthetase, cysteinyl-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. This gene is one of several located near the imprinted gene domain on chromosome 11p15.5, an important tumor-suppressor gene region. Alterations in this region have been associated with Beckwith-Wiedemann syndrome, Wilms tumor, rhabdomyosarcoma, adrenocortical carcinoma, and lung, ovarian and breast cancers. Alternative splicing of this gene results in multiple transcript variants. [provided by RefSeq, Aug 2010]

CARS1 links:

CARS1-AS1 (HGNC:40125): (CARS1 antisense RNA 1)

CARS1-AS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.02694729).

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000223 (34/152212) while in subpopulation AFR AF= 0.00082 (34/41448). AF 95% confidence interval is 0.000603. There are 0 homozygotes in gnomad4. There are 15 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CARS1	NM_001014437.3 linkuse as main transcript	c.773C>G	p.Thr258Arg	missense_variant	7/23	ENST00000380525.9	NP_001014437.1
CARS1-AS1	NR_046580.1 linkuse as main transcript	n.2184-2702G>C		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CARS1	ENST00000380525.9 linkuse as main transcript	c.773C>G	p.Thr258Arg	missense_variant	7/23	1	NM_001014437.3	ENSP00000369897	P3	P49589-3
CARS1-AS1	ENST00000499962.1 linkuse as main transcript	n.2184-2702G>C		intron_variant, non_coding_transcript_variant		2

Frequencies

GnomAD3 genomes

AF:

0.000223

AC:

AN:

152212

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000820

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000995

AC:

AN:

251304

Hom.:

AF XY:

0.0000589

AC XY:

AN XY:

135808

show subpopulations

Gnomad AFR exome

AF:

0.00129

Gnomad AMR exome

AF:

0.000116

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000287

AC:

AN:

1461462

Hom.:

Cov.:

AF XY:

0.0000220

AC XY:

AN XY:

726948

show subpopulations

Gnomad4 AFR exome

AF:

0.00105

Gnomad4 AMR exome

AF:

0.0000895

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:

9.00e-7

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

AF:

0.000223

AC:

AN:

152212

Hom.:

Cov.:

AF XY:

0.000202

AC XY:

AN XY:

74356

show subpopulations

Gnomad4 AFR

AF:

0.000820

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:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000198

Hom.:

Bravo

AF:

0.000310

ESP6500AA

AF:

0.00136

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000741

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 06, 2023

The c.773C>G (p.T258R) alteration is located in exon 7 (coding exon 7) of the CARS gene. This alteration results from a C to G substitution at nucleotide position 773, causing the threonine (T) at amino acid position 258 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.073

BayesDel_addAF

Benign

-0.51

BayesDel_noAF

Benign

-0.55

CADD

Benign

DANN

Benign

0.83

DEOGEN2

Benign

0.048

.;T;.;.

Eigen

Benign

-0.76

Eigen_PC

Benign

-0.69

FATHMM_MKL

Uncertain

0.77

M_CAP

Benign

0.019

MetaRNN

Benign

0.027

T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.60

.;N;N;.

MutationTaster

Benign

1.0

N;N;N;N;N

PrimateAI

Benign

0.26

PROVEAN

Benign

0.62

N;N;N;.

REVEL

Benign

0.10

Sift

Benign

0.50

T;T;T;.

Sift4G

Benign

0.53

T;T;T;T

Polyphen

0.0, 0.0010

.;B;B;B

Vest4

0.24

MVP

0.41

MPC

0.28

ClinPred

0.016

GERP RS

3.9

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.16

gMVP

0.26

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