rs143460342

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS1

The NM_152783.5(D2HGDH):​c.1387G>A​(p.Glu463Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000127 in 1,612,354 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. E463E) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00066 ( 1 hom., cov: 33)
Exomes 𝑓: 0.000071 ( 0 hom. )

Consequence

D2HGDH
NM_152783.5 missense

Scores

1
12
6

Clinical Significance

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

Conservation

PhyloP100: 2.79

Publications

1 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -9 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.028402686).
BP6
Variant 2-241767790-G-A is Benign according to our data. Variant chr2-241767790-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 434892.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000657 (100/152236) while in subpopulation AFR AF = 0.00222 (92/41528). AF 95% confidence interval is 0.00185. There are 1 homozygotes in GnomAd4. There are 53 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
D2HGDHNM_152783.5 linkc.1387G>A p.Glu463Lys missense_variant Exon 10 of 10 ENST00000321264.9 NP_689996.4

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
D2HGDHENST00000321264.9 linkc.1387G>A p.Glu463Lys missense_variant Exon 10 of 10 1 NM_152783.5 ENSP00000315351.4

Frequencies

GnomAD3 genomes
AF:
0.000657
AC:
100
AN:
152118
Hom.:
1
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00222
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000262
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00191
GnomAD2 exomes
AF:
0.000180
AC:
44
AN:
244950
AF XY:
0.000157
show subpopulations
Gnomad AFR exome
AF:
0.00204
Gnomad AMR exome
AF:
0.000204
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000918
Gnomad OTH exome
AF:
0.000167
GnomAD4 exome
AF:
0.0000712
AC:
104
AN:
1460118
Hom.:
0
Cov.:
33
AF XY:
0.0000578
AC XY:
42
AN XY:
726372
show subpopulations
African (AFR)
AF:
0.00233
AC:
78
AN:
33470
American (AMR)
AF:
0.000157
AC:
7
AN:
44644
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26048
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39692
South Asian (SAS)
AF:
0.0000696
AC:
6
AN:
86230
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52392
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5756
European-Non Finnish (NFE)
AF:
0.00000540
AC:
6
AN:
1111550
Other (OTH)
AF:
0.000116
AC:
7
AN:
60336
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.487
Heterozygous variant carriers
0
7
15
22
30
37
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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:
0.000657
AC:
100
AN:
152236
Hom.:
1
Cov.:
33
AF XY:
0.000712
AC XY:
53
AN XY:
74436
show subpopulations
African (AFR)
AF:
0.00222
AC:
92
AN:
41528
American (AMR)
AF:
0.000261
AC:
4
AN:
15304
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5180
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10626
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67978
Other (OTH)
AF:
0.00189
AC:
4
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.507
Heterozygous variant carriers
0
5
10
16
21
26
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
2
4
6
8
10
<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:
0.0000419
Hom.:
0
Bravo
AF:
0.000642
ESP6500AA
AF:
0.00272
AC:
12
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000198
AC:
24

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:2Benign:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

D-2-hydroxyglutaric aciduria 1 Uncertain:1Benign:1
Jan 07, 2022
New York Genome Center
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Dec 31, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not specified Uncertain:1
Jul 29, 2016
Genetic Services Laboratory, University of Chicago
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

D2HGDH-related disorder Benign:1
Oct 21, 2022
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.093
BayesDel_addAF
Benign
-0.25
T
BayesDel_noAF
Benign
-0.13
CADD
Benign
22
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.44
T;.
Eigen
Uncertain
0.43
Eigen_PC
Uncertain
0.35
FATHMM_MKL
Uncertain
0.81
D
LIST_S2
Uncertain
0.87
D;D
M_CAP
Benign
0.013
T
MetaRNN
Benign
0.028
T;T
MetaSVM
Uncertain
0.47
D
MutationAssessor
Uncertain
2.7
M;.
PhyloP100
2.8
PrimateAI
Uncertain
0.59
T
PROVEAN
Uncertain
-3.4
D;D
REVEL
Uncertain
0.61
Sift
Uncertain
0.0010
D;D
Sift4G
Uncertain
0.020
D;D
Polyphen
0.98
D;.
Vest4
0.23
MVP
0.92
MPC
0.47
ClinPred
0.066
T
GERP RS
4.5
Varity_R
0.75
gMVP
0.79
Mutation Taster
=60/40
polymorphism

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

Other links and lift over

dbSNP: rs143460342; hg19: chr2-242707205; API