dbSNP rs73273316: HARS2:p.Leu290Leu (chr5-140696984-C-T) – ACMG Classification: Benign (-19 pts)

Variant summary

Our verdict is Benign. The variant received -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BS1BS2

The NM_001363535.2(HARS2):c.886C>T(p.Leu296Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000812 in 1,613,900 control chromosomes in the GnomAD database, including 7 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0039 ( 1 hom., cov: 31)

Exomes 𝑓: 0.00049 ( 6 hom. )

Consequence

HARS2
NM_001363535.2 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 0.894

Publications

3 publications found

Variant links:

Genes affected

HARS2 (HGNC:4817): (histidyl-tRNA synthetase 2, mitochondrial) Aminoacyl-tRNA synthetases are a class of enzymes that charge tRNAs with their cognate amino acids. The protein encoded by this gene is an enzyme belonging to the class II family of aminoacyl-tRNA synthetases. Functioning in the synthesis of histidyl-transfer RNA, the enzyme plays an accessory role in the regulation of protein biosynthesis. The gene is located in a head-to-head orientation with HARS on chromosome five, where the homologous genes likely share a bidirectional promoter. Mutations in this gene are associated with the pathogenesis of Perrault syndrome, which involves ovarian dysgenesis and sensorineural hearing loss. Alternative splicing results in multiple transcript variants of this gene. [provided by RefSeq, Jul 2013]

HARS2 Gene-Disease associations (from GenCC):

Perrault syndrome 2
Inheritance: AR Classification: STRONG, LIMITED Submitted by: ClinGen, Labcorp Genetics (formerly Invitae), PanelApp Australia
Perrault syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

HARS2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -19 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.34).

BP6

Variant 5-140696984-C-T is Benign according to our data. Variant chr5-140696984-C-T is described in ClinVar as Benign. ClinVar VariationId is 214540.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=0.894 with no splicing effect.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00391 (596/152250) while in subpopulation AFR AF = 0.0139 (576/41532). AF 95% confidence interval is 0.0129. There are 1 homozygotes in GnomAd4. There are 283 alleles in the male GnomAd4 subpopulation. Median coverage is 31. This position passed quality control check.

BS2

High Homozygotes in GnomAdExome4 at 6 AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001363535.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
HARS2	NM_012208.4	MANE Select	c.868C>T	p.Leu290Leu	synonymous	Exon 9 of 13	NP_036340.1
HARS2	NM_001363535.2		c.886C>T	p.Leu296Leu	synonymous	Exon 10 of 14	NP_001350464.1
HARS2	NM_001278731.2		c.793C>T	p.Leu265Leu	synonymous	Exon 8 of 12	NP_001265660.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
HARS2	ENST00000230771.9	TSL:1 MANE Select	c.868C>T	p.Leu290Leu	synonymous	Exon 9 of 13	ENSP00000230771.3
HARS2	ENST00000926034.1		c.898C>T	p.Leu300Leu	synonymous	Exon 9 of 13	ENSP00000596093.1
HARS2	ENST00000645065.1		c.886C>T	p.Leu296Leu	synonymous	Exon 11 of 15	ENSP00000493571.1

Frequencies

GnomAD3 genomes

AF:

0.00391

AC:

595

AN:

152132

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0139

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000786

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.00191

GnomAD2 exomes

AF:

0.00107

AC:

269

AN:

251406

AF XY:

0.000736

show subpopulations

Gnomad AFR exome

AF:

0.0155

Gnomad AMR exome

AF:

0.000347

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000352

Gnomad OTH exome

AF:

0.000326

GnomAD4 exome

AF:

0.000489

AC:

715

AN:

1461650

Hom.:

Cov.:

AF XY:

0.000422

AC XY:

307

AN XY:

727150

show subpopulations

African (AFR)

AF:

0.0183

AC:

611

AN:

33470

American (AMR)

AF:

0.000514

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000348

AC:

AN:

86246

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53394

Middle Eastern (MID)

AF:

0.000174

AC:

AN:

5758

European-Non Finnish (NFE)

AF:

0.00000630

AC:

AN:

1111840

Other (OTH)

AF:

0.00116

AC:

AN:

60382

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.465

Heterozygous variant carriers

130

174

217

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

110

<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:

0.00391

AC:

596

AN:

152250

Hom.:

Cov.:

AF XY:

0.00380

AC XY:

283

AN XY:

74432

show subpopulations

African (AFR)

AF:

0.0139

AC:

576

AN:

41532

American (AMR)

AF:

0.000785

AC:

AN:

15290

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5194

South Asian (SAS)

AF:

0.000207

AC:

AN:

4820

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10618

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000441

AC:

AN:

68008

Other (OTH)

AF:

0.00189

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.497

Heterozygous variant carriers

113

141

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:

0.00315

Hom.:

Bravo

AF:

0.00466

Asia WGS

AF:

0.00115

AC:

AN:

3478

ClinVar

ClinVar submissions as Germline

Significance:Benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (2)

not specified (2)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.34

CADD

Benign

6.3

(source)

DANN

Benign

0.72

PhyloP100

0.89

Mutation Taster

=100/0

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over