rs2275591

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_024884.3(L2HGDH):​c.53T>G​(p.Leu18Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.574 in 1,605,690 control chromosomes in the GnomAD database, including 264,691 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.57 ( 24879 hom., cov: 33)
Exomes 𝑓: 0.57 ( 239812 hom. )

Consequence

L2HGDH
NM_024884.3 missense

Scores

1
17

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:7

Conservation

PhyloP100: -4.90
Variant links:
Genes affected
L2HGDH (HGNC:20499): (L-2-hydroxyglutarate dehydrogenase) This gene encodes L-2-hydroxyglutarate dehydrogenase, a FAD-dependent enzyme that oxidizes L-2-hydroxyglutarate to alpha-ketoglutarate in a variety of mammalian tissues. Mutations in this gene cause L-2-hydroxyglutaric aciduria, a rare autosomal recessive neurometabolic disorder resulting in moderate to severe cognitive disability. [provided by RefSeq, Jul 2008]
DMAC2L (HGNC:18799): (distal membrane arm assembly component 2 like) This gene encodes a subunit of mitochondrial ATP synthase. Mitochondrial ATP synthase catalyzes ATP synthesis, utilizing an electrochemical gradient of protons across the inner membrane during oxidative phosphorylation. ATP synthase is composed of two linked multi-subunit complexes: the soluble catalytic core, F1, and the membrane-spanning component, Fo, comprising the proton channel. This gene encodes the subunit s, also known as factor B, of the proton channel. This subunit is necessary for the energy transduction activity of the ATP synthase complexes. Alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=1.3381955E-5).
BP6
Variant 14-50312098-A-C is Benign according to our data. Variant chr14-50312098-A-C is described in ClinVar as [Likely_benign]. Clinvar id is 158799.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr14-50312098-A-C is described in Lovd as [Benign].
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.603 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
L2HGDHNM_024884.3 linkc.53T>G p.Leu18Arg missense_variant Exon 1 of 10 ENST00000267436.9 NP_079160.1 Q9H9P8-1
DMAC2LNM_001382507.1 linkc.-333A>C upstream_gene_variant ENST00000557421.7 NP_001369436.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
L2HGDHENST00000267436.9 linkc.53T>G p.Leu18Arg missense_variant Exon 1 of 10 1 NM_024884.3 ENSP00000267436.4 Q9H9P8-1
DMAC2LENST00000557421.7 linkc.-333A>C upstream_gene_variant 5 NM_001382507.1 ENSP00000506374.1 A0A5K1VW60

Frequencies

GnomAD3 genomes
AF:
0.572
AC:
86912
AN:
152000
Hom.:
24846
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.559
Gnomad AMI
AF:
0.531
Gnomad AMR
AF:
0.553
Gnomad ASJ
AF:
0.520
Gnomad EAS
AF:
0.620
Gnomad SAS
AF:
0.535
Gnomad FIN
AF:
0.596
Gnomad MID
AF:
0.636
Gnomad NFE
AF:
0.582
Gnomad OTH
AF:
0.569
GnomAD3 exomes
AF:
0.566
AC:
130229
AN:
229978
Hom.:
36753
AF XY:
0.566
AC XY:
71366
AN XY:
125990
show subpopulations
Gnomad AFR exome
AF:
0.560
Gnomad AMR exome
AF:
0.531
Gnomad ASJ exome
AF:
0.511
Gnomad EAS exome
AF:
0.613
Gnomad SAS exome
AF:
0.543
Gnomad FIN exome
AF:
0.595
Gnomad NFE exome
AF:
0.578
Gnomad OTH exome
AF:
0.556
GnomAD4 exome
AF:
0.574
AC:
834303
AN:
1453572
Hom.:
239812
Cov.:
65
AF XY:
0.572
AC XY:
413666
AN XY:
722642
show subpopulations
Gnomad4 AFR exome
AF:
0.553
Gnomad4 AMR exome
AF:
0.536
Gnomad4 ASJ exome
AF:
0.511
Gnomad4 EAS exome
AF:
0.603
Gnomad4 SAS exome
AF:
0.546
Gnomad4 FIN exome
AF:
0.595
Gnomad4 NFE exome
AF:
0.578
Gnomad4 OTH exome
AF:
0.573
GnomAD4 genome
AF:
0.572
AC:
87004
AN:
152118
Hom.:
24879
Cov.:
33
AF XY:
0.570
AC XY:
42402
AN XY:
74384
show subpopulations
Gnomad4 AFR
AF:
0.559
Gnomad4 AMR
AF:
0.554
Gnomad4 ASJ
AF:
0.520
Gnomad4 EAS
AF:
0.621
Gnomad4 SAS
AF:
0.535
Gnomad4 FIN
AF:
0.596
Gnomad4 NFE
AF:
0.582
Gnomad4 OTH
AF:
0.570
Alfa
AF:
0.567
Hom.:
36696
Bravo
AF:
0.565
TwinsUK
AF:
0.591
AC:
2193
ALSPAC
AF:
0.570
AC:
2197
ESP6500AA
AF:
0.563
AC:
2465
ESP6500EA
AF:
0.563
AC:
4826
ExAC
AF:
0.555
AC:
66690
Asia WGS
AF:
0.541
AC:
1882
AN:
3478

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:7
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:4
Apr 20, 2017
Athena Diagnostics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Feb 19, 2016
Mayo Clinic Laboratories, Mayo Clinic
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: not provided

- -

Feb 17, 2020
GeneDx
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

L-2-hydroxyglutaric aciduria Benign:2
Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Aug 19, 2021
Genome-Nilou Lab
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not specified Benign:1
Oct 31, 2013
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
AlphaMissense
Benign
0.070
BayesDel_addAF
Benign
-0.53
T
BayesDel_noAF
Benign
-0.39
CADD
Benign
0.041
DANN
Benign
0.29
DEOGEN2
Benign
0.0099
T;T;T;.;T
Eigen
Benign
-1.7
Eigen_PC
Benign
-1.7
FATHMM_MKL
Benign
0.013
N
LIST_S2
Benign
0.027
T;.;T;T;T
MetaRNN
Benign
0.000013
T;T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.0
.;N;N;.;.
PrimateAI
Uncertain
0.64
T
PROVEAN
Benign
-0.21
N;N;N;N;N
REVEL
Benign
0.19
Sift
Benign
0.69
T;T;T;T;T
Sift4G
Benign
0.47
T;T;T;T;T
Polyphen
0.0
B;B;B;.;.
Vest4
0.11
MPC
0.30
ClinPred
0.0060
T
GERP RS
-2.2
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.061
gMVP
0.55

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.

Other links and lift over

dbSNP: rs2275591; hg19: chr14-50778816; COSMIC: COSV55413053; COSMIC: COSV55413053; API