rs143267922

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_005548.3(KARS1):c.1674C>T(p.Leu558Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000915 in 1,614,046 control chromosomes in the GnomAD database, including 5 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0024 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00076 ( 5 hom. )

Consequence

KARS1
NM_005548.3 synonymous

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:10

Conservation

PhyloP100: 0.474

Publications

0 publications found

Variant links:

Genes affected

KARS1 (HGNC:6215): (lysyl-tRNA synthetase 1) Aminoacyl-tRNA synthetases are a class of enzymes that charge tRNAs with their cognate amino acids. Lysyl-tRNA synthetase is a homodimer localized to the cytoplasm which belongs to the class II family of tRNA synthetases. It has been shown to be a target of autoantibodies in the human autoimmune diseases, polymyositis or dermatomyositis. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

KARS1 Gene-Disease associations (from GenCC):

autosomal recessive nonsyndromic hearing loss 89
Inheritance: AR Classification: STRONG, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), G2P
leukoencephalopathy, progressive, infantile-onset, with or without deafness
Inheritance: AR Classification: STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae)
Charcot-Marie-Tooth disease recessive intermediate B
Inheritance: AR, Unknown Classification: SUPPORTIVE, LIMITED Submitted by: Orphanet, Labcorp Genetics (formerly Invitae)
hearing loss, autosomal recessive
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
nonsyndromic genetic hearing loss
Inheritance: AR Classification: LIMITED Submitted by: ClinGen

KARS1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -21 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.54).

BP6

Variant 16-75628590-G-A is Benign according to our data. Variant chr16-75628590-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 226681.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=0.474 with no splicing effect.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00239 (364/152358) while in subpopulation AFR AF = 0.00637 (265/41582). AF 95% confidence interval is 0.00574. There are 0 homozygotes in GnomAd4. There are 168 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

BS2

High Homozygotes in GnomAdExome4 at 5 AR,Unknown gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
KARS1	NM_005548.3 link	c.1674C>T	p.Leu558Leu	synonymous_variant	Exon 13 of 14	ENST00000302445.8	NP_005539.1	Q15046-1
KARS1	NM_001130089.2 link	c.1758C>T	p.Leu586Leu	synonymous_variant	Exon 14 of 15		NP_001123561.1	Q15046-2
KARS1	NM_001378148.1 link	c.1206C>T	p.Leu402Leu	synonymous_variant	Exon 13 of 14		NP_001365077.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
KARS1	ENST00000302445.8 link	c.1674C>T	p.Leu558Leu	synonymous_variant	Exon 13 of 14	1	NM_005548.3	ENSP00000303043.3		Q15046-1

Frequencies

GnomAD3 genomes

AF:

0.00240

AC:

365

AN:

152240

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00639

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00301

Gnomad ASJ

AF:

0.00346

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.0190

Gnomad NFE

AF:

0.000456

Gnomad OTH

AF:

0.00239

GnomAD2 exomes

AF:

0.00134

AC:

337

AN:

251416

AF XY:

0.00118

show subpopulations

Gnomad AFR exome

AF:

0.00720

Gnomad AMR exome

AF:

0.00228

Gnomad ASJ exome

AF:

0.00427

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000748

Gnomad OTH exome

AF:

0.00212

GnomAD4 exome

AF:

0.000761

AC:

1113

AN:

1461688

Hom.:

Cov.:

AF XY:

0.000730

AC XY:

531

AN XY:

727148

show subpopulations

African (AFR)

AF:

0.00735

AC:

246

AN:

33474

American (AMR)

AF:

0.00241

AC:

108

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00383

AC:

100

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39698

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86250

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00443

AC:

AN:

5640

European-Non Finnish (NFE)

AF:

0.000448

AC:

498

AN:

1111976

Other (OTH)

AF:

0.00224

AC:

135

AN:

60370

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

120

179

239

299

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

120

<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

AF:

0.00239

AC:

364

AN:

152358

Hom.:

Cov.:

AF XY:

0.00225

AC XY:

168

AN XY:

74510

show subpopulations

African (AFR)

AF:

0.00637

AC:

265

AN:

41582

American (AMR)

AF:

0.00294

AC:

AN:

15302

Ashkenazi Jewish (ASJ)

AF:

0.00346

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5188

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.0204

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000456

AC:

AN:

68042

Other (OTH)

AF:

0.00236

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.504

Heterozygous variant carriers

122

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome 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

Alfa

AF:

0.00183

Hom.:

Bravo

AF:

0.00326

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.000600

EpiControl

AF:

0.00119

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:10

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:7

Genome Diagnostics Laboratory, University Medical Center Utrecht

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Jan 25, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Jan 14, 2019

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Oct 30, 2023

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Mar 01, 2025

CeGaT Center for Human Genetics Tuebingen

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

KARS1: BP4, BP7 -

Breakthrough Genomics, Breakthrough Genomics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:not provided

- -

not specified

Benign:3

Nov 24, 2014

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Leu586Leu in exon 14 of KARS: This variant is not expected to have clinical sign ificance because it does not alter an amino acid residue and is not located with in the splice consensus sequence. It has been identified in 0.6% (27/4396) of Af rican American chromosomes from a broad population by the NHLBI Exome Sequencing Project (http://evs.gs.washington.edu/EVS; dbSNP rs143267922). -

Clinical Genetics, Academic Medical Center

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Apr 04, 2018

Eurofins Ntd Llc (ga)

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.54

CADD

Benign

8.0

(source)

DANN

Benign

0.63

PhyloP100

0.47

Mutation Taster

=91/9

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over