17-63601210-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_016360.4(TACO1):​c.127G>A​(p.Gly43Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000056 in 1,429,098 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000056 ( 0 hom. )

Consequence

TACO1
NM_016360.4 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.170
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_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.04085931).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TACO1NM_016360.4 linkuse as main transcriptc.127G>A p.Gly43Ser missense_variant 1/5 ENST00000258975.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TACO1ENST00000258975.7 linkuse as main transcriptc.127G>A p.Gly43Ser missense_variant 1/51 NM_016360.4 P3
TACO1ENST00000684587.1 linkuse as main transcriptc.127G>A p.Gly43Ser missense_variant 1/5 A1
TACO1ENST00000581120.1 linkuse as main transcriptn.329G>A non_coding_transcript_exon_variant 1/42

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.0000104
AC:
2
AN:
191676
Hom.:
0
AF XY:
0.0000191
AC XY:
2
AN XY:
104560
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000350
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:
0.0000124
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000560
AC:
8
AN:
1429098
Hom.:
0
Cov.:
31
AF XY:
0.00000706
AC XY:
5
AN XY:
707810
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000508
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000200
Gnomad4 NFE exome
AF:
0.00000274
Gnomad4 OTH exome
AF:
0.0000338
GnomAD4 genome
Cov.:
32
Bravo
AF:
0.00000756

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJul 07, 2023ClinVar contains an entry for this variant (Variation ID: 1955460). 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. Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Not Available"; PolyPhen-2: "Benign"; Align-GVGD: "Not Available". The serine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. This variant has not been reported in the literature in individuals affected with TACO1-related conditions. This variant is present in population databases (no rsID available, gnomAD 0.004%). This sequence change replaces glycine, which is neutral and non-polar, with serine, which is neutral and polar, at codon 43 of the TACO1 protein (p.Gly43Ser). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.082
BayesDel_addAF
Benign
-0.38
T
BayesDel_noAF
Benign
-0.68
CADD
Benign
2.7
DANN
Benign
0.70
DEOGEN2
Benign
0.18
T
Eigen
Benign
-1.2
Eigen_PC
Benign
-1.2
FATHMM_MKL
Benign
0.018
N
LIST_S2
Benign
0.45
T
M_CAP
Benign
0.0028
T
MetaRNN
Benign
0.041
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.46
N
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.48
T
PROVEAN
Benign
-0.28
N
REVEL
Benign
0.013
Sift
Benign
0.72
T
Sift4G
Benign
0.63
T
Polyphen
0.0030
B
Vest4
0.12
MutPred
0.16
Gain of glycosylation at G43 (P = 0.0239);
MVP
0.014
MPC
0.41
ClinPred
0.019
T
GERP RS
-1.3
Varity_R
0.047
gMVP
0.13

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: rs947889585; hg19: chr17-61678569; API