2-63597407-G-A

Variant names:

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_005917.4(MDH1):c.208G>A(p.Ala70Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000398 in 1,427,172 control chromosomes in the GnomAD database, including 13 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00030 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00041 ( 13 hom. )

Consequence

MDH1
NM_005917.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.53

Variant links:

Genes affected

MDH1 (HGNC:6970): (malate dehydrogenase 1) This gene encodes an enzyme that catalyzes the NAD/NADH-dependent, reversible oxidation of malate to oxaloacetate in many metabolic pathways, including the citric acid cycle. Two main isozymes are known to exist in eukaryotic cells: one is found in the mitochondrial matrix and the other in the cytoplasm. This gene encodes the cytosolic isozyme, which plays a key role in the malate-aspartate shuttle that allows malate to pass through the mitochondrial membrane to be transformed into oxaloacetate for further cellular processes. Alternatively spliced transcript variants have been found for this gene. A recent study showed that a C-terminally extended isoform is produced by use of an alternative in-frame translation termination codon via a stop codon readthrough mechanism, and that this isoform is localized in the peroxisomes. Pseudogenes have been identified on chromosomes X and 6. [provided by RefSeq, Feb 2016]

MDH1 links:

WDPCP (HGNC:28027): (WD repeat containing planar cell polarity effector) This gene encodes a cytoplasmic WD40 repeat protein. A similar gene in frogs encodes a planar cell polarity protein that plays a critical role in collective cell movement and ciliogenesis by mediating septin localization. Mutations in this gene are associated with Bardet-Biedl syndrome 15 and may also play a role in Meckel-Gruber syndrome. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jun 2014]

WDPCP links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.010978013).

BS2

High Homozygotes in GnomAdExome4 at 13 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MDH1	NM_005917.4 link	c.208G>A	p.Ala70Thr	missense_variant	Exon 4 of 9	ENST00000233114.13	NP_005908.1	P40925-1V9HWF2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MDH1	ENST00000233114.13 link	c.208G>A	p.Ala70Thr	missense_variant	Exon 4 of 9	1	NM_005917.4	ENSP00000233114.8		P40925-1

Frequencies

GnomAD3 genomes

AF:

0.000309

AC:

AN:

152170

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.000288

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00953

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000855

AC:

144

AN:

168414

AF XY:

0.00106

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000116

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000409

AC:

522

AN:

1274884

Hom.:

Cov.:

AF XY:

0.000578

AC XY:

360

AN XY:

623174

show subpopulations

Gnomad4 AFR exome

AF:

0.00

AC:

AN:

26790

Gnomad4 AMR exome

AF:

0.00

AC:

AN:

22282

Gnomad4 ASJ exome

AF:

0.00

AC:

AN:

20064

Gnomad4 EAS exome

AF:

0.0000302

AC:

AN:

33150

Gnomad4 SAS exome

AF:

0.00837

AC:

472

AN:

56384

Gnomad4 FIN exome

AF:

0.00

AC:

AN:

48012

Gnomad4 NFE exome

AF:

0.00000890

AC:

AN:

1011746

Gnomad4 Remaining exome

AF:

0.000740

AC:

AN:

51360

Heterozygous variant carriers

106

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Exome Het

Exome Hom

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

GnomAD4 genome

AF:

0.000302

AC:

AN:

152288

Hom.:

Cov.:

AF XY:

0.000510

AC XY:

AN XY:

74458

show subpopulations

Gnomad4 AFR

AF:

0.00

AC:

AN:

Gnomad4 AMR

AF:

0.00

AC:

AN:

Gnomad4 ASJ

AF:

0.000288

AC:

0.000288351

AN:

0.000288351

Gnomad4 EAS

AF:

0.00

AC:

AN:

Gnomad4 SAS

AF:

0.00933

AC:

0.00932836

AN:

0.00932836

Gnomad4 FIN

AF:

0.00

AC:

AN:

Gnomad4 NFE

AF:

0.00

AC:

AN:

Gnomad4 OTH

AF:

0.00

AC:

AN:

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

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:

0.0000803

Hom.:

Bravo

AF:

0.0000831

ExAC

AF:

0.00116

AC:

141

Asia WGS

AF:

0.00751

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Jun 01, 2022

CeGaT Center for Human Genetics Tuebingen

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.21

BayesDel_addAF

Benign

-0.31

BayesDel_noAF

Benign

-0.21

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.75

D;T;.;T;.

Eigen

Benign

0.18

Eigen_PC

Benign

0.19

FATHMM_MKL

Uncertain

0.94

LIST_S2

Benign

0.80

T;T;T;T;T

MetaRNN

Benign

0.011

T;T;T;T;T

MetaSVM

Uncertain

-0.11

MutationAssessor

Benign

2.0

M;.;.;.;.

PrimateAI

Benign

0.39

PROVEAN

Benign

-2.1

N;N;N;N;N

REVEL

Uncertain

0.33

Sift

Benign

0.23

T;D;T;T;T

Sift4G

Benign

0.28

T;T;T;T;T

Polyphen

0.85

P;.;.;.;.

Vest4

0.27

MutPred

0.46

Loss of ubiquitination at K66 (P = 0.0524);.;.;.;.;

MVP

0.79

MPC

0.36

ClinPred

0.12

GERP RS

3.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.032

gMVP

0.30

Mutation Taster

=293/7

polymorphism

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.050

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over