rs145731647

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3PP5

The NM_152783.5(D2HGDH):​c.293-23A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000048 in 1,458,674 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 Pathogenic (no stars). There are indicators that this mutation may affect the branch point..

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

D2HGDH
NM_152783.5 intron

Scores

2

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 1.80
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
Splicing scoreres supports a deletorius effect: Scorers claiming Pathogenic: max_spliceai. No scorers claiming Uncertain. No scorers claiming Benign.
PP5
Variant 2-241741010-A-G is Pathogenic according to our data. Variant chr2-241741010-A-G is described in ClinVar as [Pathogenic]. Clinvar id is 1854.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr2-241741010-A-G is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
D2HGDHNM_152783.5 linkuse as main transcriptc.293-23A>G intron_variant ENST00000321264.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
D2HGDHENST00000321264.9 linkuse as main transcriptc.293-23A>G intron_variant 1 NM_152783.5 P1Q8N465-1
D2HGDHENST00000436747.5 linkuse as main transcriptc.293-23A>G intron_variant, NMD_transcript_variant 1
D2HGDHENST00000403782.5 linkuse as main transcriptc.-110-23A>G intron_variant 2
D2HGDHENST00000400769.6 linkuse as main transcriptc.293-23A>G intron_variant, NMD_transcript_variant 2

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000401
AC:
1
AN:
249638
Hom.:
0
AF XY:
0.00000740
AC XY:
1
AN XY:
135082
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000885
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000480
AC:
7
AN:
1458674
Hom.:
0
Cov.:
29
AF XY:
0.00000551
AC XY:
4
AN XY:
725794
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
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:
0.00
Gnomad4 NFE exome
AF:
0.00000541
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

D-2-hydroxyglutaric aciduria 1 Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMFeb 01, 2005- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.86
CADD
Benign
4.5
DANN
Benign
0.58
La Branchor
0.96
BranchPoint Hunter
6.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.66
Details are displayed if max score is > 0.2
DS_AG_spliceai
0.66
Position offset: 4
DS_AL_spliceai
0.34
Position offset: 23

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.

Other links and lift over

dbSNP: rs145731647; hg19: chr2-242680425; API