2-241755980-G-T

Variant names:

• chr2-241755980-G-T
• rs375565047
• NM_152783.5:c.1272G>T

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_Moderate BP6_Moderate BP7

The NM_152783.5(D2HGDH):​c.1272G>T​(p.Pro424Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000374 in 1,603,108 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 Likely benign (★). Synonymous variant affecting the same amino acid position (i.e. P424P) has been classified as Likely benign.

• Frequency:
  • Genomes: 𝑓 0.000013 (0 hom., cov: 33)
  • Exomes 𝑓: 0.0000028 (0 hom.)
• Consequence: D2HGDH NM_152783.5 synonymous
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: -1.95
• Publications: 1 publications found

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):

• mitochondrial disease

  Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
• D-2-hydroxyglutaric aciduria 1

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

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ENSG00000234793 (HGNC:):

ACMG classification

Our verdict: Likely_benign. The variant received -5 ACMG points.

• BP4: Computational evidence support a benign effect (REVEL=0.027).
• BP6: Variant 2-241755980-G-T is Benign according to our data. Variant chr2-241755980-G-T is described in ClinVar as Likely_benign. ClinVar VariationId is 1651642.Status of the report is criteria_provided_single_submitter, 1 stars.
• BP7: Synonymous conserved (PhyloP=-1.95 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_152783.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	D2HGDH	NM_152783.5	MANE Select	c.1272G>T	p.Pro424Pro	synonymous	Exon 9 of 10	NP_689996.4
	D2HGDH	NM_001287249.2		c.870G>T	p.Pro290Pro	synonymous	Exon 8 of 9	NP_001274178.1	B5MCV2
	D2HGDH	NM_001352824.2		c.711G>T	p.Pro237Pro	synonymous	Exon 9 of 10	NP_001339753.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	D2HGDH	ENST00000321264.9	TSL:1 MANE Select	c.1272G>T	p.Pro424Pro	synonymous	Exon 9 of 10	ENSP00000315351.4	Q8N465-1
	D2HGDH	ENST00000436747.5	TSL:1	n.*2508G>T		non_coding_transcript_exon	Exon 11 of 12	ENSP00000400212.1	F8WCF9
	D2HGDH	ENST00000468064.5	TSL:1	n.1162G>T		non_coding_transcript_exon	Exon 2 of 3

Frequencies

GnomAD3 genomes AF: 0.0000131 AC: 2 AN: 152210 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0000654

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: 0.0000147

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.00000406 AC: 1 AN: 246388 AF XY: 0.00000747

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.0000547

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000276 AC: 4 AN: 1450898 Hom.: 0 Cov.: 36 AF XY: 0.00000139 AC XY: 1 AN XY: 719622

African (AFR) AF: 0.00 AC: 0 AN: 33220

American (AMR) AF: 0.00 AC: 0 AN: 44424

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25976

East Asian (EAS) AF: 0.0000762 AC: 3 AN: 39356

South Asian (SAS) AF: 0.00 AC: 0 AN: 86016

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52148

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5744

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1104232

Other (OTH) AF: 0.0000167 AC: 1 AN: 59782

GnomAD4 genome AF: 0.0000131 AC: 2 AN: 152210 Hom.: 0 Cov.: 33 AF XY: 0.0000134 AC XY: 1 AN XY: 74350

African (AFR) AF: 0.00 AC: 0 AN: 41464

American (AMR) AF: 0.0000654 AC: 1 AN: 15284

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3468

East Asian (EAS) AF: 0.00 AC: 0 AN: 5192

South Asian (SAS) AF: 0.00 AC: 0 AN: 4830

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10620

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.0000147 AC: 1 AN: 68034

Other (OTH) AF: 0.00 AC: 0 AN: 2090

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.0000189

ClinVar

ClinVar submissions

Significance: Likely benign

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	-	1	D-2-hydroxyglutaric aciduria 1 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.91
CADD	Benign	0.032
DANN	Benign	0.76
PhyloP100		-1.9
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Mutation Taster		=100/0	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

Other links and lift over

dbSNP: rs375565047; hg19: chr2-242695395;