5-110739163-G-A

Position:

chr5-110739163-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_138773.4(SLC25A46):c.44G>A(p.Arg15Gln) variant causes a missense change. The variant allele was found at a frequency of 0.00004 in 1,550,010 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. R15P) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000040 ( 0 hom. )

Consequence

SLC25A46
NM_138773.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 6.26

Variant links:

Genes affected

SLC25A46 (HGNC:25198): (solute carrier family 25 member 46) This gene encodes a mitochondrial solute carrier protein family member. It functions in promoting mitochondrial fission, and prevents the formation of hyperfilamentous mitochondria. Mutation of this gene results in neuropathy and optic atrophy. [provided by RefSeq, Aug 2016]

SLC25A46 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
SLC25A46	NM_138773.4 linkuse as main transcript	c.44G>A	p.Arg15Gln	missense_variant	1/8	ENST00000355943.8
SLC25A46	NM_001303249.3 linkuse as main transcript	c.44G>A	p.Arg15Gln	missense_variant	1/8
SLC25A46	NM_001303250.3 linkuse as main transcript	c.10+916G>A		intron_variant
SLC25A46	NR_138151.2 linkuse as main transcript	n.157G>A		non_coding_transcript_exon_variant	1/9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SLC25A46	ENST00000355943.8 linkuse as main transcript	c.44G>A	p.Arg15Gln	missense_variant	1/8	1	NM_138773.4	P1	Q96AG3-1
SLC25A46	ENST00000447245.6 linkuse as main transcript	c.44G>A	p.Arg15Gln	missense_variant	1/8	2			Q96AG3-3
SLC25A46	ENST00000513807.5 linkuse as main transcript	c.-204+916G>A		intron_variant		2
SLC25A46	ENST00000508781.5 linkuse as main transcript	n.112+916G>A		intron_variant, non_coding_transcript_variant		4

Frequencies

GnomAD3 genomes

AF:

0.0000394

AC:

AN:

152242

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000327

AC:

AN:

153132

Hom.:

AF XY:

0.0000246

AC XY:

AN XY:

81458

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:

0.0000439

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000686

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000401

AC:

AN:

1397768

Hom.:

Cov.:

AF XY:

0.0000464

AC XY:

AN XY:

689494

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:

0.0000757

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000445

Gnomad4 OTH exome

AF:

0.0000173

GnomAD4 genome

AF:

0.0000394

AC:

AN:

152242

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74376

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.000262

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000176

Hom.:

Bravo

AF:

0.000125

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000247

AC:

ExAC

AF:

0.0000419

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Neuropathy, hereditary motor and sensory, type 6B

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Aug 17, 2023

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. An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant¬†is likely to be tolerated. ClinVar contains an entry for this variant (Variation ID: 542449). This variant has not been reported in the literature in individuals affected with SLC25A46-related conditions. This variant is present in population databases (rs372382932, gnomAD 0.007%). This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 15 of the SLC25A46 protein (p.Arg15Gln). -

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 28, 2022

The c.44G>A (p.R15Q) alteration is located in exon 1 (coding exon 1) of the SLC25A46 gene. This alteration results from a G to A substitution at nucleotide position 44, causing the arginine (R) at amino acid position 15 to be replaced by a glutamine (Q). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Nov 01, 2023

Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.43

BayesDel_addAF

Uncertain

0.021

BayesDel_noAF

Uncertain

-0.020

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.020

T;.

Eigen

Uncertain

0.53

Eigen_PC

Uncertain

0.50

FATHMM_MKL

Uncertain

0.82

LIST_S2

Uncertain

0.87

D;D

M_CAP

Pathogenic

0.67

MetaRNN

Uncertain

0.65

D;D

MetaSVM

Uncertain

0.39

MutationAssessor

Uncertain

2.3

M;M

MutationTaster

Benign

1.0

D;D;D;D

PrimateAI

Pathogenic

0.87

PROVEAN

Benign

-0.95

N;N

REVEL

Uncertain

0.51

Sift

Pathogenic

0.0

D;D

Sift4G

Pathogenic

0.0

D;D

Polyphen

1.0

D;.

Vest4

0.54

MVP

0.75

MPC

0.076

ClinPred

0.65

GERP RS

4.0

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.0

Varity_R

0.53

gMVP

0.62

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

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