rs35989076

Positions:

chr3-48858577-C-T

Variant summary

Our verdict is Benign. Variant got -18 ACMG points: 2P and 20B. PM1BP4_StrongBP6_Very_StrongBS1BS2

The ENST00000319017.5(SLC25A20):c.773G>A(p.Arg258Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000591 in 1,614,194 control chromosomes in the GnomAD database, including 7 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 (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R258W) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0032 ( 5 hom., cov: 32)

Exomes 𝑓: 0.00032 ( 2 hom. )

Consequence

SLC25A20
ENST00000319017.5 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 1.80

Variant links:

Genes affected

SLC25A20 (HGNC:1421): (solute carrier family 25 member 20) This gene product is one of several closely related mitochondrial-membrane carrier proteins that shuttle substrates between cytosol and the intramitochondrial matrix space. This protein mediates the transport of acylcarnitines into mitochondrial matrix for their oxidation by the mitochondrial fatty acid-oxidation pathway. Mutations in this gene are associated with carnitine-acylcarnitine translocase deficiency, which can cause a variety of pathological conditions such as hypoglycemia, cardiac arrest, hepatomegaly, hepatic dysfunction and muscle weakness, and is usually lethal in new born and infants. [provided by RefSeq, Jul 2008]

SLC25A20 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -18 ACMG points.

PM1

In a repeat Solcar 3 (size 86) in uniprot entity MCAT_HUMAN there are 6 pathogenic changes around while only 1 benign (86%) in ENST00000319017.5

BP4

Computational evidence support a benign effect (MetaRNN=0.0034131408).

BP6

Variant 3-48858577-C-T is Benign according to our data. Variant chr3-48858577-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 235366.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00315 (480/152302) while in subpopulation AFR AF= 0.0109 (455/41556). AF 95% confidence interval is 0.0101. There are 5 homozygotes in gnomad4. There are 227 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High Homozygotes in GnomAd4 at 5 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SLC25A20	NM_000387.6 linkuse as main transcript	c.773G>A	p.Arg258Gln	missense_variant	8/9	ENST00000319017.5	NP_000378.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris
SLC25A20	ENST00000319017.5 linkuse as main transcript	c.773G>A	p.Arg258Gln	missense_variant	8/9	1	NM_000387.6	ENSP00000326305	P1
SLC25A20	ENST00000430379.5 linkuse as main transcript	c.554G>A	p.Arg185Gln	missense_variant	6/7	3		ENSP00000388986
SLC25A20	ENST00000479050.1 linkuse as main transcript	n.92G>A		non_coding_transcript_exon_variant	1/2	2
SLC25A20	ENST00000440964.1 linkuse as main transcript	c.*603G>A		3_prime_UTR_variant, NMD_transcript_variant	9/10	2		ENSP00000388563

Frequencies

GnomAD3 genomes

AF:

0.00316

AC:

481

AN:

152184

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0110

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000982

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000414

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00335

GnomAD3 exomes

AF:

0.000927

AC:

233

AN:

251434

Hom.:

AF XY:

0.000677

AC XY:

AN XY:

135880

show subpopulations

Gnomad AFR exome

AF:

0.0121

Gnomad AMR exome

AF:

0.000838

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:

0.0000528

Gnomad OTH exome

AF:

0.000326

GnomAD4 exome

AF:

0.000324

AC:

474

AN:

1461892

Hom.:

Cov.:

AF XY:

0.000276

AC XY:

201

AN XY:

727246

show subpopulations

Gnomad4 AFR exome

AF:

0.0104

Gnomad4 AMR exome

AF:

0.000984

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000232

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000207

Gnomad4 OTH exome

AF:

0.000944

GnomAD4 genome

AF:

0.00315

AC:

480

AN:

152302

Hom.:

Cov.:

AF XY:

0.00305

AC XY:

227

AN XY:

74482

show subpopulations

Gnomad4 AFR

AF:

0.0109

Gnomad4 AMR

AF:

0.000980

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000414

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00331

Alfa

AF:

0.000530

Hom.:

Bravo

AF:

0.00353

ESP6500AA

AF:

0.0111

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.00111

AC:

135

Asia WGS

AF:

0.00144

AC:

AN:

3478

EpiCase

AF:

0.000109

EpiControl

AF:

0.000119

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:1

Benign, criteria provided, single submitter

clinical testing

GeneDx

Feb 02, 2017

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Carnitine acylcarnitine translocase deficiency

Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 29, 2024

- -

not provided

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics

May 21, 2015

- -

SLC25A20-related disorder

Benign:1

Benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Jun 14, 2019

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.44

BayesDel_noAF

Benign

-0.39

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.33

.;T

Eigen

Benign

-0.22

Eigen_PC

Benign

-0.12

FATHMM_MKL

Uncertain

0.83

LIST_S2

Uncertain

0.89

D;D

MetaRNN

Benign

0.0034

T;T

MetaSVM

Benign

-0.58

MutationAssessor

Benign

1.1

.;L

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Benign

0.27

PROVEAN

Benign

-2.3

N;N

REVEL

Benign

0.27

Sift

Benign

0.23

T;T

Sift4G

Benign

0.14

T;T

Polyphen

0.057

B;B

Vest4

0.21

MVP

0.86

MPC

0.31

ClinPred

0.024

GERP RS

2.9

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.15

gMVP

0.83

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.040

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