Variant chr18-50917428-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_002396.5(ME2):c.550C>T(p.Leu184Phe) variant causes a missense change. The variant allele was found at a frequency of 0.00000274 in 1,461,468 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

ME2
NM_002396.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.77

Variant links:

Genes affected

ME2 (HGNC:6984): (malic enzyme 2) This gene encodes a mitochondrial NAD-dependent malic enzyme, a homotetrameric protein, that catalyzes the oxidative decarboxylation of malate to pyruvate. It had previously been weakly linked to a syndrome known as Friedreich ataxia that has since been shown to be the result of mutation in a completely different gene. Certain single-nucleotide polymorphism haplotypes of this gene have been shown to increase the risk for idiopathic generalized epilepsy. Alternatively spliced transcript variants encoding different isoforms found for this gene. [provided by RefSeq, Dec 2009]

ME2 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.96

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
ME2	NM_002396.5 linkuse as main transcript	c.550C>T	p.Leu184Phe	missense_variant	6/16	ENST00000321341.11
ME2	NM_001168335.2 linkuse as main transcript	c.550C>T	p.Leu184Phe	missense_variant	6/14
ME2	NR_174094.1 linkuse as main transcript	n.753C>T		non_coding_transcript_exon_variant	6/15

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ME2	ENST00000321341.11 linkuse as main transcript	c.550C>T	p.Leu184Phe	missense_variant	6/16	1	NM_002396.5	P1	P23368-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251332

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135844

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:

0.00

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.00000274

AC:

AN:

1461468

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727060

show subpopulations

Gnomad4 AFR exome

AF:

0.00

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:

9.00e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 14, 2024

The c.550C>T (p.L184F) alteration is located in exon 6 (coding exon 5) of the ME2 gene. This alteration results from a C to T substitution at nucleotide position 550, causing the leucine (L) at amino acid position 184 to be replaced by a phenylalanine (F). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.97

BayesDel_addAF

Pathogenic

0.27

BayesDel_noAF

Pathogenic

0.15

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.37

T;.;.;.;.;.

Eigen

Pathogenic

0.89

Eigen_PC

Pathogenic

0.80

FATHMM_MKL

Uncertain

0.96

LIST_S2

Pathogenic

0.97

D;D;D;D;D;D

M_CAP

Benign

0.068

MetaRNN

Pathogenic

0.96

D;D;D;D;D;D

MetaSVM

Uncertain

-0.13

MutationAssessor

Pathogenic

3.7

H;.;H;.;.;.

MutationTaster

Benign

1.0

D;D

PrimateAI

Pathogenic

0.84

PROVEAN

Uncertain

-4.0

D;.;D;.;.;.

REVEL

Uncertain

0.54

Sift

Uncertain

0.0010

D;.;D;.;.;.

Sift4G

Uncertain

0.0020

D;.;D;.;.;.

Polyphen

1.0

D;.;.;.;.;.

Vest4

0.81

MutPred

0.88

Gain of methylation at K183 (P = 0.0267);Gain of methylation at K183 (P = 0.0267);Gain of methylation at K183 (P = 0.0267);Gain of methylation at K183 (P = 0.0267);Gain of methylation at K183 (P = 0.0267);.;

MVP

0.65

MPC

1.1

ClinPred

1.0

GERP RS

5.4

Varity_R

0.95

gMVP

0.86

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.080

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