Genetic Variant NM_020117.11:c.2126A>C (chr5-146140226-T-G) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_020117.11(LARS1):c.2126A>C(p.His709Pro) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000959 in 1,459,924 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (no stars).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000096 ( 0 hom. )

Consequence

LARS1
NM_020117.11 missense

Scores

Clinical Significance

Uncertain significance no assertion criteria provided U:1

Conservation

PhyloP100: 7.62

Publications

0 publications found

Variant links:

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]

LARS1 Gene-Disease associations (from GenCC):

infantile liver failure syndrome 1
Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet

LARS1 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.928

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_020117.11. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
LARS1	NM_020117.11	MANE Select	c.2126A>C	p.His709Pro	missense	Exon 21 of 32	NP_064502.9
LARS1	NM_016460.4		c.2045A>C	p.His682Pro	missense	Exon 20 of 31	NP_057544.2
LARS1	NM_001317964.2		c.1988A>C	p.His663Pro	missense	Exon 20 of 31	NP_001304893.1	A0A6I8PL42

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
LARS1	ENST00000394434.7	TSL:1 MANE Select	c.2126A>C	p.His709Pro	missense	Exon 21 of 32	ENSP00000377954.2	Q9P2J5-1
LARS1	ENST00000908002.1		c.2246A>C	p.His749Pro	missense	Exon 22 of 33	ENSP00000578061.1
LARS1	ENST00000907999.1		c.2219A>C	p.His740Pro	missense	Exon 22 of 33	ENSP00000578058.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000959

AC:

AN:

1459924

Hom.:

Cov.:

AF XY:

0.0000110

AC XY:

AN XY:

726438

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33456

American (AMR)

AF:

0.00

AC:

AN:

44714

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26116

East Asian (EAS)

AF:

0.00

AC:

AN:

39678

South Asian (SAS)

AF:

0.00

AC:

AN:

86240

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53400

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000117

AC:

AN:

1110216

Other (OTH)

AF:

0.0000166

AC:

AN:

60336

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.464

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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

Cov.:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:no assertion criteria provided

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.98

BayesDel_addAF

Pathogenic

0.42

BayesDel_noAF

Pathogenic

0.37

CADD

Pathogenic

(source)

DANN

Uncertain

0.98

DEOGEN2

Uncertain

0.42

Eigen

Pathogenic

0.97

Eigen_PC

Pathogenic

0.89

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Pathogenic

0.98

M_CAP

Uncertain

0.19

MetaRNN

Pathogenic

0.93

MetaSVM

Uncertain

0.71

MutationAssessor

Pathogenic

3.3

PhyloP100

7.6

PrimateAI

Uncertain

0.63

PROVEAN

Pathogenic

-9.2

REVEL

Pathogenic

0.85

Sift

Uncertain

0.0010

Sift4G

Uncertain

0.0020

Polyphen

1.0

Vest4

0.96

MutPred

0.72

Loss of catalytic residue at L711 (P = 0.104)

MVP

0.86

MPC

0.96

ClinPred

1.0

GERP RS

5.6

Varity_R

0.98

gMVP

0.98

Mutation Taster

=4/96

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.040

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over