rs1554149118

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 0P and 2B. BP4_Moderate

The ENST00000415954.6(MTO1):​c.1262C>A​(p.Thr421Lys) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. In-silico tool predicts a benign outcome for this variant. 14/18 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000047 ( 0 hom., cov: 23)
Exomes 𝑓: 0.0000027 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

MTO1
ENST00000415954.6 missense, splice_region

Scores

1
14
Splicing: ADA: 0.0002478
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -2.03
Variant links:
Genes affected
MTO1 (HGNC:19261): (mitochondrial tRNA translation optimization 1) This gene encodes a mitochondrial protein thought to be involved in mitochondrial tRNA modification. The encoded protein may also play a role in the expression of the non-syndromic and aminoglycoside-induced deafness phenotypes associated with a specific mutation in the mitochondrial 12S rRNA gene. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.13732615).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MTO1NM_012123.4 linkuse as main transcriptc.1260+193C>A intron_variant ENST00000498286.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MTO1ENST00000498286.6 linkuse as main transcriptc.1260+193C>A intron_variant 1 NM_012123.4 P1Q9Y2Z2-4

Frequencies

GnomAD3 genomes
AF:
0.00
AC:
5
AN:
106782
Hom.:
0
Cov.:
23
FAILED QC
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000136
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000304
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.000356
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000347
Gnomad OTH
AF:
0.00
GnomAD4 exome
Data not reliable, filtered out with message: AS_VQSR
AF:
0.00000268
AC:
1
AN:
373098
Hom.:
0
Cov.:
6
AF XY:
0.00000505
AC XY:
1
AN XY:
197910
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:
0.0000239
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Data not reliable, filtered out with message: AS_VQSR
AF:
0.0000468
AC:
5
AN:
106832
Hom.:
0
Cov.:
23
AF XY:
0.0000207
AC XY:
1
AN XY:
48290
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000136
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000305
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.000356
Gnomad4 NFE
AF:
0.0000347
Gnomad4 OTH
AF:
0.00

ClinVar

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

Submissions by phenotype

Mitochondrial hypertrophic cardiomyopathy with lactic acidosis due to MTO1 deficiency Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingPhosphorus, Inc.Aug 01, 2017- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Benign
-0.075
T
BayesDel_noAF
Benign
-0.34
CADD
Benign
4.8
DANN
Benign
0.72
Eigen
Benign
-0.42
Eigen_PC
Benign
-0.75
FATHMM_MKL
Benign
0.016
N
LIST_S2
Benign
0.43
T
M_CAP
Benign
0.0011
T
MetaRNN
Benign
0.14
T
MetaSVM
Benign
-1.0
T
MutationTaster
Benign
1.0
N;N;N;N
PROVEAN
Benign
-0.19
N
REVEL
Benign
0.014
Sift
Benign
0.14
T
Sift4G
Uncertain
0.034
D
Polyphen
0.55
P
Vest4
0.34
MutPred
0.51
Gain of ubiquitination at T421 (P = 0.0138);
MVP
0.38
MPC
0.29
ClinPred
0.21
T
GERP RS
0.84
gMVP
0.65

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00025
dbscSNV1_RF
Benign
0.052
SpliceAI score (max)
0.070
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: rs1554149118; hg19: chr6-74190721; API