NM_152783.5:c.1140+8G>A

Variant names:

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_152783.5(D2HGDH):c.1140+8G>A variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000594 in 1,613,012 control chromosomes in the GnomAD database, including 6 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00071 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00058 ( 6 hom. )

Consequence

D2HGDH
NM_152783.5 splice_region, intron

Scores

Splicing: ADA: 0.0003680

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:3

Conservation

PhyloP100: -1.81

Publications

0 publications found

Variant links:

Genes affected

D2HGDH (HGNC:28358): (D-2-hydroxyglutarate dehydrogenase) This gene encodes D-2hydroxyglutarate dehydrogenase, a mitochondrial enzyme belonging to the FAD-binding oxidoreductase/transferase type 4 family. This enzyme, which is most active in liver and kidney but also active in heart and brain, converts D-2-hydroxyglutarate to 2-ketoglutarate. Mutations in this gene are present in D-2-hydroxyglutaric aciduria, a rare recessive neurometabolic disorder causing developmental delay, epilepsy, hypotonia, and dysmorphic features. [provided by RefSeq, Jul 2008]

D2HGDH Gene-Disease associations (from GenCC):

D-2-hydroxyglutaric aciduria 1
Inheritance: AR Classification: STRONG, LIMITED Submitted by: G2P, Labcorp Genetics (formerly Invitae)
D-2-hydroxyglutaric aciduria
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

D2HGDH links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -13 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.85).

BP6

Variant 2-241751396-G-A is Benign according to our data. Variant chr2-241751396-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 210813.

BS1

Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.000709 (108/152316) while in subpopulation AMR AF = 0.00216 (33/15304). AF 95% confidence interval is 0.00158. There are 0 homozygotes in GnomAd4. There are 59 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

BS2

High Homozygotes in GnomAdExome4 at 6 AR,AD gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
D2HGDH	NM_152783.5 link	c.1140+8G>A		splice_region_variant, intron_variant	Intron 8 of 9	ENST00000321264.9	NP_689996.4	Q8N465-1B4E3K7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
D2HGDH	ENST00000321264.9 link	c.1140+8G>A		splice_region_variant, intron_variant	Intron 8 of 9	1	NM_152783.5	ENSP00000315351.4		Q8N465-1

Frequencies

GnomAD3 genomes

AF:

0.000703

AC:

107

AN:

152198

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000555

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00216

Gnomad ASJ

AF:

0.000576

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.000753

Gnomad MID

AF:

0.00633

Gnomad NFE

AF:

0.000544

Gnomad OTH

AF:

0.000956

GnomAD2 exomes

AF:

0.000784

AC:

196

AN:

249970

AF XY:

0.000797

show subpopulations

Gnomad AFR exome

AF:

0.000496

Gnomad AMR exome

AF:

0.00223

Gnomad ASJ exome

AF:

0.00109

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000650

Gnomad NFE exome

AF:

0.000603

Gnomad OTH exome

AF:

0.00213

GnomAD4 exome

AF:

0.000582

AC:

850

AN:

1460696

Hom.:

Cov.:

AF XY:

0.000579

AC XY:

421

AN XY:

726674

show subpopulations

African (AFR)

AF:

0.000538

AC:

AN:

33466

American (AMR)

AF:

0.00244

AC:

109

AN:

44704

Ashkenazi Jewish (ASJ)

AF:

0.00103

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.000244

AC:

AN:

86198

European-Finnish (FIN)

AF:

0.000399

AC:

AN:

52568

Middle Eastern (MID)

AF:

0.00947

AC:

AN:

5594

European-Non Finnish (NFE)

AF:

0.000487

AC:

541

AN:

1111972

Other (OTH)

AF:

0.000994

AC:

AN:

60360

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.484

Heterozygous variant carriers

128

171

214

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:

0.000709

AC:

108

AN:

152316

Hom.:

Cov.:

AF XY:

0.000792

AC XY:

AN XY:

74482

show subpopulations

African (AFR)

AF:

0.000553

AC:

AN:

41556

American (AMR)

AF:

0.00216

AC:

AN:

15304

Ashkenazi Jewish (ASJ)

AF:

0.000576

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5184

South Asian (SAS)

AF:

0.000207

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.000753

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.00680

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000544

AC:

AN:

68036

Other (OTH)

AF:

0.000946

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.487

Heterozygous variant carriers

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:

0.000458

Hom.:

Bravo

AF:

0.00104

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:3

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

D-2-hydroxyglutaric aciduria 1

Uncertain:1Benign:1

Jan 12, 2018

Illumina Laboratory Services, Illumina

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

Jan 29, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not provided

Uncertain:1Benign:1

Feb 01, 2022

CeGaT Center for Human Genetics Tuebingen

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Feb 24, 2016

Mayo Clinic Laboratories, Mayo Clinic

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

not specified

Benign:1

Oct 09, 2017

Genetic Services Laboratory, University of Chicago

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

-0.85

CADD

Benign

0.16

(source)

DANN

Benign

0.65

PhyloP100

-1.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Mutation Taster

=100/0

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.00037

dbscSNV1_RF

Benign

0.036

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

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over