5-146120382-C-G

Position:

• chr5-146120382-C-G

Variant summary

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

The ENST00000394434.7(LARS1):​c.3314G>C​(p.Arg1105Pro) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. 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. R1105Q) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: LARS1 ENST00000394434.7 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 6.08

Genes affected

LARS1 (HGNC:6512): (leucyl-tRNA synthetase 1) This gene encodes a cytosolic leucine-tRNA synthetase, a member of the class I aminoacyl-tRNA synthetase family. The encoded enzyme catalyzes the ATP-dependent ligation of L-leucine to tRNA(Leu). It is found in the cytoplasm as part of a multisynthetase complex and interacts with the arginine tRNA synthetase through its C-terminal domain. A mutation in this gene was found in affected individuals with infantile liver failure syndrome 1. Alternatively spliced transcript variants of this gene have been observed. [provided by RefSeq, Dec 2015]

(HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
LARS1	NM_020117.11	c.3314G>C	p.Arg1105Pro	missense_variant	31/32	ENST00000394434.7	NP_064502.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
LARS1	ENST00000394434.7	c.3314G>C	p.Arg1105Pro	missense_variant	31/32	1	NM_020117.11	ENSP00000377954	P4
	ENST00000514002.1	n.409C>G		non_coding_transcript_exon_variant	3/3	5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

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

May 15, 2024

The c.3314G>C (p.R1105P) alteration is located in exon 31 (coding exon 31) of the LARS gene. This alteration results from a G to C substitution at nucleotide position 3314, causing the arginine (R) at amino acid position 1105 to be replaced by a proline (P). 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	Uncertain	0.49
BayesDel_addAF	Pathogenic	0.33	D
BayesDel_noAF	Pathogenic	0.24
CADD	Pathogenic	27
DANN	Uncertain	1.0
DEOGEN2	Benign	0.20	T;.;.
Eigen	Pathogenic	0.78
Eigen_PC	Pathogenic	0.75
FATHMM_MKL	Pathogenic	1.0	D
LIST_S2	Uncertain	0.94	D;D;D
M_CAP	Benign	0.083	D
MetaRNN	Uncertain	0.74	D;D;D
MetaSVM	Uncertain	-0.094	T
MutationAssessor	Pathogenic	3.0	M;.;.
MutationTaster	Benign	1.0	D;D;D;D
PrimateAI	Uncertain	0.56	T
PROVEAN	Uncertain	-3.9	D;.;D
REVEL	Uncertain	0.43
Sift	Benign	0.042	D;.;D
Sift4G	Uncertain	0.029	D;D;D
Polyphen		0.99	D;.;.
Vest4		0.81
MutPred		0.28		Loss of MoRF binding (P = 0.0296);.;.;
MVP		0.76
MPC		0.82
ClinPred		0.99	D
GERP RS		5.3
Varity_R		0.77
gMVP		0.85

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: chr5-145499945;