1-155612098-C-T

Variant summary

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

The NM_018116.4(MSTO1):​c.676C>T​(p.Gln226*) variant causes a stop gained, splice region change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Likely pathogenic (★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: not found (cov: 30)
Exomes 𝑓: 6.8e-7 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

MSTO1
NM_018116.4 stop_gained, splice_region

Scores

4
2
1
Splicing: ADA: 0.9969
2

Clinical Significance

Likely pathogenic criteria provided, single submitter P:1

Conservation

PhyloP100: 6.53
Variant links:
Genes affected
MSTO1 (HGNC:29678): (misato mitochondrial distribution and morphology regulator 1) Involved in mitochondrion distribution. Located in cytosol and mitochondrial outer membrane. [provided by Alliance of Genome Resources, Apr 2022]

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 1-155612098-C-T is Pathogenic according to our data. Variant chr1-155612098-C-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 522862.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr1-155612098-C-T is described in Lovd as [Likely_pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MSTO1NM_018116.4 linkuse as main transcriptc.676C>T p.Gln226* stop_gained, splice_region_variant 7/14 ENST00000245564.8 NP_060586.2 Q9BUK6-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MSTO1ENST00000245564.8 linkuse as main transcriptc.676C>T p.Gln226* stop_gained, splice_region_variant 7/141 NM_018116.4 ENSP00000245564.3 Q9BUK6-1
MSTO1ENST00000368341.8 linkuse as main transcriptc.571C>T p.Gln191* stop_gained, splice_region_variant 6/132 ENSP00000357325.4 Q9BUK6-7

Frequencies

GnomAD3 genomes
Cov.:
30
GnomAD3 exomes
AF:
0.00000401
AC:
1
AN:
249656
Hom.:
0
AF XY:
0.00000739
AC XY:
1
AN XY:
135378
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:
0.00000886
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
Data not reliable, filtered out with message: AS_VQSR
AF:
6.85e-7
AC:
1
AN:
1460772
Hom.:
0
Cov.:
32
AF XY:
0.00000138
AC XY:
1
AN XY:
726712
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:
9.00e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
30

ClinVar

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

Submissions by phenotype

Mitochondrial myopathy-cerebellar ataxia-pigmentary retinopathy syndrome Pathogenic:1
Likely pathogenic, criteria provided, single submitterclinical testingUndiagnosed Diseases Network, NIHDec 14, 2017The c.676C>T (p.Gln226Ter) variant in MSTO1 is a nonsense variant. This variant was identified as a compound heterozygote with c.971C>T (p.Thr324Ile). The variant is seen in 1 individual in gnomAD as a heterozygote. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.58
D
BayesDel_noAF
Pathogenic
0.60
CADD
Pathogenic
54
DANN
Uncertain
1.0
Eigen
Pathogenic
0.91
Eigen_PC
Pathogenic
0.69
FATHMM_MKL
Uncertain
0.96
D
Vest4
0.48, 0.45
GERP RS
3.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
1.0
dbscSNV1_RF
Pathogenic
0.95
SpliceAI score (max)
0.80
Details are displayed if max score is > 0.2
DS_DG_spliceai
0.80
Position offset: -2
DS_DL_spliceai
0.71
Position offset: 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: rs1208636573; hg19: chr1-155581889; API