chr11-3038108-G-A

Position:

• chr11-3038108-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001014437.3(CARS1):​c.743C>T​(p.Pro248Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000205 in 1,461,830 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: CARS1 NM_001014437.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 4.20

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

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.248483).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CARS1	NM_001014437.3	c.743C>T	p.Pro248Leu	missense_variant	7/23	ENST00000380525.9	NP_001014437.1
CARS1-AS1	NR_046580.1	n.2184-2672G>A		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CARS1	ENST00000380525.9	c.743C>T	p.Pro248Leu	missense_variant	7/23	1	NM_001014437.3	ENSP00000369897	P3
CARS1-AS1	ENST00000499962.1	n.2184-2672G>A		intron_variant, non_coding_transcript_variant		2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000205 AC: 3 AN: 1461830 Hom.: 0 Cov.: 31 AF XY: 0.00000275 AC XY: 2 AN XY: 727216

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: 0.00000180

Gnomad4 OTH exome AF: 0.0000166

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 11, 2023

The c.743C>T (p.P248L) alteration is located in exon 7 (coding exon 7) of the CARS gene. This alteration results from a C to T substitution at nucleotide position 743, causing the proline (P) at amino acid position 248 to be replaced by a leucine (L). 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	0.10
BayesDel_addAF	Benign	-0.17	T
BayesDel_noAF	Benign	-0.48
CADD	Benign	18
DANN	Benign	0.95
DEOGEN2	Benign	0.13	.;T;.;.
Eigen	Benign	-0.63
Eigen_PC	Benign	-0.64
FATHMM_MKL	Uncertain	0.90	D
M_CAP	Benign	0.040	D
MetaRNN	Benign	0.25	T;T;T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Uncertain	2.1	.;M;M;.
MutationTaster	Benign	1.0	D;D;D;D;D
PrimateAI	Benign	0.36	T
PROVEAN	Benign	-1.5	N;N;N;.
REVEL	Benign	0.13
Sift	Uncertain	0.015	D;D;D;.
Sift4G	Uncertain	0.048	D;T;T;T
Polyphen		0.0010, 0.0	.;B;B;B
Vest4		0.30
MutPred		0.54		.;Loss of glycosylation at P165 (P = 0.0274);Loss of glycosylation at P165 (P = 0.0274);.;
MVP		0.59
MPC		0.25
ClinPred		0.65	D
GERP RS		2.0
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.15
gMVP		0.72

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr11-3059338;