chr5-110739284-G-GC

Variant summary

Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PVS1PM2PP5_Moderate

The NM_138773.4(SLC25A46):​c.166dup​(p.His56ProfsTer40) variant causes a frameshift change. The variant allele was found at a frequency of 0.0000159 in 1,575,104 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Pathogenic (★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

SLC25A46
NM_138773.4 frameshift

Scores

Not classified

Clinical Significance

Pathogenic criteria provided, single submitter P:2

Conservation

PhyloP100: 6.47
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 12 ACMG points.

PVS1
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 5-110739284-G-GC is Pathogenic according to our data. Variant chr5-110739284-G-GC is described in ClinVar as [Pathogenic]. Clinvar id is 372237.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SLC25A46NM_138773.4 linkuse as main transcriptc.166dup p.His56ProfsTer40 frameshift_variant 1/8 ENST00000355943.8
SLC25A46NM_001303249.3 linkuse as main transcriptc.166dup p.His56ProfsTer40 frameshift_variant 1/8
SLC25A46NM_001303250.3 linkuse as main transcriptc.10+1038dup intron_variant
SLC25A46NR_138151.2 linkuse as main transcriptn.279dup non_coding_transcript_exon_variant 1/9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SLC25A46ENST00000355943.8 linkuse as main transcriptc.166dup p.His56ProfsTer40 frameshift_variant 1/81 NM_138773.4 P1Q96AG3-1
SLC25A46ENST00000447245.6 linkuse as main transcriptc.166dup p.His56ProfsTer40 frameshift_variant 1/82 Q96AG3-3
SLC25A46ENST00000513807.5 linkuse as main transcriptc.-204+1038dup intron_variant 2
SLC25A46ENST00000508781.5 linkuse as main transcriptn.112+1038dup intron_variant, non_coding_transcript_variant 4

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152202
Hom.:
0
Cov.:
33
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:
0.00000550
AC:
1
AN:
181816
Hom.:
0
AF XY:
0.0000102
AC XY:
1
AN XY:
97632
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:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000133
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000162
AC:
23
AN:
1422902
Hom.:
0
Cov.:
31
AF XY:
0.0000156
AC XY:
11
AN XY:
704104
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:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000211
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152202
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74358
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
Bravo
AF:
0.00000756

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Neuropathy, hereditary motor and sensory, type 6B Pathogenic:2
Pathogenic, no assertion criteria providedliterature onlyOMIMJan 14, 2017- -
Pathogenic, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpOct 01, 2022For these reasons, this variant has been classified as Pathogenic. ClinVar contains an entry for this variant (Variation ID: 372237). This premature translational stop signal has been observed in individual(s) with clinical features of Charcot-Marie-Tooth disease (PMID: 26168012). This variant is present in population databases (no rsID available, gnomAD 0.001%). This sequence change creates a premature translational stop signal (p.His56Profs*40) in the SLC25A46 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in SLC25A46 are known to be pathogenic (PMID: 26168012, 26951855, 27543974). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

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.

Other links and lift over

dbSNP: rs1057519416; hg19: chr5-110074985; API