Variant 1-173825011-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_018122.5(DARS2):c.-219C>T variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000544 in 497,832 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00056 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00054 ( 0 hom. )

Consequence

DARS2
NM_018122.5 5_prime_UTR

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.271

Variant links:

Genes affected

DARS2 (HGNC:25538): (aspartyl-tRNA synthetase 2, mitochondrial) The protein encoded by this gene belongs to the class-II aminoacyl-tRNA synthetase family. It is a mitochondrial enzyme that specifically aminoacylates aspartyl-tRNA. Mutations in this gene are associated with leukoencephalopathy with brainstem and spinal cord involvement and lactate elevation (LBSL). [provided by RefSeq, Nov 2009]

DARS2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.65).

Transcripts

RefSeq

Gene	Transcript	HGVSc	Effect	#exon/exons	MANE	Protein
DARS2	NM_018122.5 linkuse as main transcript	c.-219C>T	5_prime_UTR_variant	1/17	ENST00000649689.2	NP_060592.2
DARS2	NM_001365212.1 linkuse as main transcript	c.-219C>T	5_prime_UTR_variant	1/16		NP_001352141.1
DARS2	NM_001365213.2 linkuse as main transcript	c.-219C>T	5_prime_UTR_variant	1/14		NP_001352142.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
DARS2	ENST00000649689.2 linkuse as main transcript	c.-219C>T		5_prime_UTR_variant	1/17		NM_018122.5	ENSP00000497569	P1

Frequencies

GnomAD3 genomes

AF:

0.000559

AC:

AN:

152094

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000169

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.000660

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00104

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.000538

AC:

186

AN:

345620

Hom.:

Cov.:

AF XY:

0.000453

AC XY:

AN XY:

187442

show subpopulations

Gnomad4 AFR exome

AF:

0.000431

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.000396

Gnomad4 NFE exome

AF:

0.000802

Gnomad4 OTH exome

AF:

0.000444

GnomAD4 genome

AF:

0.000558

AC:

AN:

152212

Hom.:

Cov.:

AF XY:

0.000524

AC XY:

AN XY:

74422

show subpopulations

Gnomad4 AFR

AF:

0.000169

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.000660

Gnomad4 NFE

AF:

0.00104

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.00101

Hom.:

Bravo

AF:

0.000476

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Leukoencephalopathy with brain stem and spinal cord involvement-high lactate syndrome

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Apr 27, 2017

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases did not allow this variant to be ruled in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.65

CADD

Benign

7.2

DANN

Benign

0.87

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.0

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over