17-63601175-AC-A

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PVS1_StrongPM2PP5_Moderate

The NM_016360.4(TACO1):​c.97del​(p.Arg33GlyfsTer54) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000317 in 1,547,066 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely pathogenic (β˜…).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000032 ( 0 hom. )

Consequence

TACO1
NM_016360.4 frameshift

Scores

Not classified

Clinical Significance

Likely pathogenic criteria provided, single submitter P:1

Conservation

PhyloP100: 0.123
Variant links:
Genes affected
TACO1 (HGNC:24316): (translational activator of cytochrome c oxidase I) This gene encodes a mitochondrial protein that function as a translational activator of mitochondrially-encoded cytochrome c oxidase 1. Mutations in this gene are associated with Leigh syndrome.[provided by RefSeq, Mar 2010]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

PVS1
Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant located near the start codon (<100nt), not predicted to undergo nonsense mediated mRNA decay. There are 5 pathogenic variants in the truncated region.
PM2
Very rare variant in population databases, with high coverage;
PP5
Variant 17-63601175-AC-A is Pathogenic according to our data. Variant chr17-63601175-AC-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 818073.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TACO1NM_016360.4 linkuse as main transcriptc.97del p.Arg33GlyfsTer54 frameshift_variant 1/5 ENST00000258975.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TACO1ENST00000258975.7 linkuse as main transcriptc.97del p.Arg33GlyfsTer54 frameshift_variant 1/51 NM_016360.4 P3
TACO1ENST00000684587.1 linkuse as main transcriptc.97del p.Arg33GlyfsTer54 frameshift_variant 1/5 A1
TACO1ENST00000581120.1 linkuse as main transcriptn.299del non_coding_transcript_exon_variant 1/42

Frequencies

GnomAD3 genomes
AF:
0.0000265
AC:
4
AN:
151046
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000488
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:
0.0000295
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000684
AC:
1
AN:
146110
Hom.:
0
AF XY:
0.0000126
AC XY:
1
AN XY:
79408
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:
0.0000184
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000322
AC:
45
AN:
1396020
Hom.:
0
Cov.:
31
AF XY:
0.0000291
AC XY:
20
AN XY:
688404
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:
0.0000371
Gnomad4 OTH exome
AF:
0.0000865
GnomAD4 genome
AF:
0.0000265
AC:
4
AN:
151046
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
73738
show subpopulations
Gnomad4 AFR
AF:
0.0000488
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:
0.0000295
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000151

ClinVar

Significance: Likely pathogenic
Submissions summary: Pathogenic:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Pathogenic:1
Likely pathogenic, criteria provided, single submitterclinical testingGeneDxSep 15, 2022Frameshift variant predicted to result in protein truncation or nonsense mediated decay in a gene for which loss of function is a known mechanism of disease; Not observed at significant frequency in large population cohorts (gnomAD); Has not been previously published as pathogenic or benign to our knowledge -

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: rs759254294; hg19: chr17-61678534; API