Genetic Variant HARS2:p.Leu200Leu (chr5-140695810-C-T) – ACMG Classification: Likely_benign (-1 pts)

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 2P and 3B. PM2BP4_ModerateBP7

The NM_012208.4(HARS2):c.598C>T(p.Leu200Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,212 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

HARS2
NM_012208.4 synonymous

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.87

Publications

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

HARS2 links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.31).

BP7

Synonymous conserved (PhyloP=1.87 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_012208.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
HARS2	NM_012208.4	MANE Select	c.598C>T	p.Leu200Leu	synonymous	Exon 6 of 13	NP_036340.1	P49590-1
HARS2	NM_001363535.2		c.616C>T	p.Leu206Leu	synonymous	Exon 7 of 14	NP_001350464.1	A0A2R8Y5P7
HARS2	NM_001278731.2		c.523C>T	p.Leu175Leu	synonymous	Exon 5 of 12	NP_001265660.1	P49590-2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
HARS2	ENST00000230771.9	TSL:1 MANE Select	c.598C>T	p.Leu200Leu	synonymous	Exon 6 of 13	ENSP00000230771.3	P49590-1
HARS2	ENST00000510104.5	TSL:1	n.*398C>T		non_coding_transcript_exon	Exon 6 of 6	ENSP00000423530.1	D6R9M5
HARS2	ENST00000510104.5	TSL:1	n.*398C>T		3_prime_UTR	Exon 6 of 6	ENSP00000423530.1	D6R9M5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461212

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726958

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33476

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26130

East Asian (EAS)

AF:

0.00

AC:

AN:

39696

South Asian (SAS)

AF:

0.00

AC:

AN:

86248

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

9.00e-7

AC:

AN:

1111364

Other (OTH)

AF:

0.00

AC:

AN:

60386

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.31

CADD

Benign

6.4

(source)

DANN

Benign

0.71

PhyloP100

1.9

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over