ENST00000393324.7:c.1463A>C

Variant names:

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2PP3_Strong

The ENST00000393324.7(ME3):c.1463A>C(p.Asn488Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,894 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: 6.8e-7 ( 0 hom. )

Consequence

ME3
ENST00000393324.7 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.81

Publications

0 publications found

Variant links:

Genes affected

ME3 (HGNC:6985): (malic enzyme 3) Malic enzyme catalyzes the oxidative decarboxylation of malate to pyruvate using either NAD+ or NADP+ as a cofactor. Mammalian tissues contain 3 distinct isoforms of malic enzyme: a cytosolic NADP(+)-dependent isoform, a mitochondrial NADP(+)-dependent isoform, and a mitochondrial NAD(+)-dependent isoform. This gene encodes a mitochondrial NADP(+)-dependent isoform. Multiple alternatively spliced transcript variants have been found for this gene, but the biological validity of some variants has not been determined. [provided by RefSeq, Jul 2008]

ME3 links:

ENSG00000254733 (HGNC:):

ENSG00000254733 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.979

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	Protein	UniProt
ME3	NM_001014811.2 link	c.1463A>C	p.Asn488Thr	missense_variant	Exon 12 of 14	NP_001014811.1	Q16798-1Q6TCH8
ME3	NM_001161586.3 link	c.1463A>C	p.Asn488Thr	missense_variant	Exon 13 of 15	NP_001155058.1	Q16798-1B2R995
ME3	NM_001351934.2 link	c.1463A>C	p.Asn488Thr	missense_variant	Exon 13 of 15	NP_001338863.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	Protein	UniProt
ME3	ENST00000393324.7 link	c.1463A>C	p.Asn488Thr	missense_variant	Exon 12 of 14	1	ENSP00000376998.2	Q16798-1
ME3	ENST00000543262.6 link	c.1463A>C	p.Asn488Thr	missense_variant	Exon 13 of 15	1	ENSP00000440246.1	Q16798-1
ENSG00000254733	ENST00000524610.2 link	n.383+13763T>G		intron_variant	Intron 2 of 2	3
ENSG00000254733	ENST00000758792.1 link	n.423+13763T>G		intron_variant	Intron 2 of 3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000398

AC:

AN:

251468

AF XY:

0.00000736

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:

0.00000879

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461894

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727248

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1112012

Other (OTH)

AF:

0.00

AC:

AN:

60396

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.275

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

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

Dec 19, 2022

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.1463A>C (p.N488T) alteration is located in exon 13 (coding exon 12) of the ME3 gene. This alteration results from a A to C substitution at nucleotide position 1463, causing the asparagine (N) at amino acid position 488 to be replaced by a threonine (T). 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

0.99

BayesDel_addAF

Pathogenic

0.21

BayesDel_noAF

Uncertain

0.070

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.48

T;T;T

Eigen

Pathogenic

0.88

Eigen_PC

Pathogenic

0.80

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Pathogenic

1.0

.;D;D

M_CAP

Uncertain

0.085

MetaRNN

Pathogenic

0.98

D;D;D

MetaSVM

Uncertain

0.35

MutationAssessor

Pathogenic

3.8

H;H;.

PhyloP100

7.8

PrimateAI

Uncertain

0.69

PROVEAN

Pathogenic

-5.5

D;D;D

REVEL

Uncertain

0.63

Sift

Pathogenic

0.0

D;D;D

Sift4G

Pathogenic

0.0

D;D;.

Polyphen

1.0

D;D;.

Vest4

0.96

MutPred

0.98

Loss of loop (P = 0.2897);Loss of loop (P = 0.2897);Loss of loop (P = 0.2897);

MVP

0.93

MPC

1.4

ClinPred

1.0

GERP RS

5.3

Varity_R

0.94

gMVP

0.97

Mutation Taster

=10/90

disease causing

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over