5-110739162-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_138773.4(SLC25A46):c.43C>T(p.Arg15Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000968 in 1,549,964 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. R15Q) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000093 ( 0 hom. )

Consequence

SLC25A46
NM_138773.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.43

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 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.802

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
SLC25A46	NM_138773.4 linkuse as main transcript	c.43C>T	p.Arg15Trp	missense_variant	1/8	ENST00000355943.8
SLC25A46	NM_001303249.3 linkuse as main transcript	c.43C>T	p.Arg15Trp	missense_variant	1/8
SLC25A46	NM_001303250.3 linkuse as main transcript	c.10+915C>T		intron_variant
SLC25A46	NR_138151.2 linkuse as main transcript	n.156C>T		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.43C>T	p.Arg15Trp	missense_variant	1/8	1	NM_138773.4	P1	Q96AG3-1
SLC25A46	ENST00000447245.6 linkuse as main transcript	c.43C>T	p.Arg15Trp	missense_variant	1/8	2			Q96AG3-3
SLC25A46	ENST00000513807.5 linkuse as main transcript	c.-204+915C>T		intron_variant		2
SLC25A46	ENST00000508781.5 linkuse as main transcript	n.112+915C>T		intron_variant, non_coding_transcript_variant		4

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152250

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000262

AC:

AN:

152892

Hom.:

AF XY:

0.0000246

AC XY:

AN XY:

81360

show subpopulations

Gnomad AFR exome

AF:

0.000123

Gnomad AMR exome

AF:

0.0000405

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:

0.0000344

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000930

AC:

AN:

1397714

Hom.:

Cov.:

AF XY:

0.0000102

AC XY:

AN XY:

689464

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000168

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:

0.00000463

Gnomad4 OTH exome

AF:

0.0000345

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152250

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74376

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000169

Hom.:

Bravo

AF:

0.0000378

ESP6500AA

AF:

0.000243

AC:

ESP6500EA

AF:

0.000124

AC:

ExAC

AF:

0.0000212

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Neuropathy, hereditary motor and sensory, type 6B

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Invitae

Oct 25, 2022

This sequence change replaces arginine, which is basic and polar, with tryptophan, which is neutral and slightly polar, at codon 15 of the SLC25A46 protein (p.Arg15Trp). This variant is present in population databases (rs369936836, gnomAD 0.006%). This variant has not been reported in the literature in individuals affected with SLC25A46-related conditions. ClinVar contains an entry for this variant (Variation ID: 1397718). 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: "Possibly 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

0.77

BayesDel_addAF

Uncertain

0.14

BayesDel_noAF

Pathogenic

0.21

Cadd

Pathogenic

Dann

Uncertain

1.0

DEOGEN2

Benign

0.027

T;.

Eigen

Uncertain

0.44

Eigen_PC

Uncertain

0.38

FATHMM_MKL

Benign

0.67

LIST_S2

Uncertain

0.90

D;D

M_CAP

Pathogenic

0.78

MetaRNN

Pathogenic

0.80

D;D

MetaSVM

Uncertain

0.45

MutationAssessor

Uncertain

2.3

M;M

MutationTaster

Benign

1.0

D;D;D;D

PrimateAI

Pathogenic

0.92

PROVEAN

Benign

-1.7

N;N

REVEL

Pathogenic

0.67

Sift

Pathogenic

0.0

D;D

Sift4G

Pathogenic

0.0

D;D

Polyphen

1.0

D;.

Vest4

0.78

MVP

0.81

MPC

0.25

ClinPred

0.35

GERP RS

2.9

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.6

Varity_R

0.32

gMVP

0.68

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