4-185143431-C-T

Variant names:

Variant summary

Our verdict is Likely pathogenic. The variant received 7 ACMG points: 7P and 0B. PM1PM2PP2PP3_Moderate

The NM_001151.4(SLC25A4):c.59C>T(p.Ala20Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000146 in 1,368,038 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 (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A20T) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 31)

Exomes 𝑓: 0.0000015 ( 0 hom. )

Consequence

SLC25A4
NM_001151.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.26

Publications

0 publications found

Variant links:

Genes affected

SLC25A4 (HGNC:10990): (solute carrier family 25 member 4) This gene is a member of the mitochondrial carrier subfamily of solute carrier protein genes. The product of this gene functions as a gated pore that translocates ADP from the cytoplasm into the mitochondrial matrix and ATP from the mitochondrial matrix into the cytoplasm. The protein forms a homodimer embedded in the inner mitochondria membrane. Mutations in this gene have been shown to result in autosomal dominant progressive external opthalmoplegia and familial hypertrophic cardiomyopathy. [provided by RefSeq, Jun 2013]

SLC25A4 Gene-Disease associations (from GenCC):

mitochondrial disease
Inheritance: AR Classification: DEFINITIVE Submitted by: G2P
mitochondrial DNA depletion syndrome 12B (cardiomyopathic type), autosomal recessive
Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Ambry Genetics, ClinGen, Labcorp Genetics (formerly Invitae)
Fontaine progeroid syndrome
Inheritance: AD Classification: STRONG Submitted by: G2P
mitochondrial DNA depletion syndrome 12A (cardiomyopathic type), autosomal dominant
Inheritance: AD Classification: STRONG, MODERATE Submitted by: G2P, Ambry Genetics, Labcorp Genetics (formerly Invitae)
progressive external ophthalmoplegia with mitochondrial DNA deletions, autosomal dominant 2
Inheritance: AD Classification: STRONG, MODERATE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
autosomal dominant progressive external ophthalmoplegia
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
Sengers syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
Leigh syndrome
Inheritance: AD Classification: LIMITED Submitted by: ClinGen

SLC25A4 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 7 ACMG points.

PM1

In a repeat Solcar 1 (size 92) in uniprot entity ADT1_HUMAN there are 4 pathogenic changes around while only 0 benign (100%) in NM_001151.4

PM2

Very rare variant in population databases, with high coverage;

PP2

Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 11 curated pathogenic missense variants (we use a threshold of 10). The gene has 3 curated benign missense variants. Gene score misZ: 1.8742 (below the threshold of 3.09). Trascript score misZ: 2.2652 (below the threshold of 3.09). GenCC associations: The gene is linked to mitochondrial DNA depletion syndrome 12A (cardiomyopathic type), autosomal dominant, mitochondrial disease, progressive external ophthalmoplegia with mitochondrial DNA deletions, autosomal dominant 2, mitochondrial DNA depletion syndrome 12B (cardiomyopathic type), autosomal recessive, Fontaine progeroid syndrome, Leigh syndrome, Sengers syndrome, autosomal dominant progressive external ophthalmoplegia.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.934

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SLC25A4	NM_001151.4 link	c.59C>T	p.Ala20Val	missense_variant	Exon 1 of 4	ENST00000281456.11	NP_001142.2	P12235A0A0S2Z3H3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SLC25A4	ENST00000281456.11 link	c.59C>T	p.Ala20Val	missense_variant	Exon 1 of 4	1	NM_001151.4	ENSP00000281456.5		P12235
SLC25A4	ENST00000491736.1 link	n.59C>T		non_coding_transcript_exon_variant	Exon 1 of 4	5		ENSP00000476711.1		V9GYG0

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000739

AC:

AN:

135340

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000461

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000146

AC:

AN:

1368038

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

674792

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

28838

American (AMR)

AF:

0.0000304

AC:

AN:

32878

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

24164

East Asian (EAS)

AF:

0.00

AC:

AN:

32702

South Asian (SAS)

AF:

0.00

AC:

AN:

76268

European-Finnish (FIN)

AF:

0.00

AC:

AN:

48098

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5434

European-Non Finnish (NFE)

AF:

9.41e-7

AC:

AN:

1063196

Other (OTH)

AF:

0.00

AC:

AN:

56460

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.375

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 provided

Uncertain:1

Aug 31, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces alanine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 20 of the SLC25A4 protein (p.Ala20Val). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This variant has not been reported in the literature in individuals affected with SLC25A4-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.85

BayesDel_addAF

Pathogenic

0.17

BayesDel_noAF

Uncertain

0.0

CADD

Pathogenic

(source)

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.69

Eigen

Uncertain

0.49

Eigen_PC

Uncertain

0.46

FATHMM_MKL

Uncertain

0.93

LIST_S2

Pathogenic

0.99

M_CAP

Pathogenic

0.88

MetaRNN

Pathogenic

0.93

MetaSVM

Uncertain

0.28

MutationAssessor

Benign

1.7

PhyloP100

7.3

PrimateAI

Uncertain

0.78

PROVEAN

Uncertain

-3.0

REVEL

Pathogenic

0.75

Sift

Benign

0.031

Sift4G

Benign

0.12

Polyphen

0.83

Vest4

0.57

MutPred

0.76

Loss of ubiquitination at K23 (P = 0.1151);

MVP

0.88

MPC

1.9

ClinPred

0.94

GERP RS

5.0

PromoterAI

0.011

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

2.1

Varity_R

0.47

gMVP

0.88

Mutation Taster

=30/70

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