chr19-45529184-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PVS1_Strong

The ENST00000323060.4(OPA3):​c.415C>T​(p.Gln139Ter) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000377 in 1,458,268 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 0.000038 ( 1 hom. )

Consequence

OPA3
ENST00000323060.4 stop_gained

Scores

3
3
1

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.94
Variant links:
Genes affected
OPA3 (HGNC:8142): (outer mitochondrial membrane lipid metabolism regulator OPA3) The mouse ortholog of this protein co-purifies with the mitochondrial inner membrane. Mutations in this gene have been shown to result in 3-methylglutaconic aciduria type III and autosomal dominant optic atrophy and cataract. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2009]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PVS1
Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant is located in the 3'-most exon, not predicted to undergo nonsense mediated mRNA decay. Fraction of 0.236 CDS is truncated, and there are 1 pathogenic variants in the truncated region.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
OPA3NM_001017989.3 linkuse as main transcriptc.415C>T p.Gln139Ter stop_gained 2/2 NP_001017989.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
OPA3ENST00000323060.4 linkuse as main transcriptc.415C>T p.Gln139Ter stop_gained 2/21 ENSP00000319817 Q9H6K4-2

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD3 exomes
AF:
0.0000957
AC:
23
AN:
240216
Hom.:
1
AF XY:
0.000137
AC XY:
18
AN XY:
131506
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:
0.000756
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000377
AC:
55
AN:
1458268
Hom.:
1
Cov.:
31
AF XY:
0.0000593
AC XY:
43
AN XY:
725646
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:
0.000626
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
31
Alfa
AF:
0.000179
Hom.:
0
Bravo
AF:
0.00000756
ExAC
AF:
0.0000745
AC:
9

ClinVar

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

Submissions by phenotype

3-Methylglutaconic aciduria type 3 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingCounsylAug 11, 2017- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.23
D
BayesDel_noAF
Pathogenic
0.47
CADD
Pathogenic
36
DANN
Uncertain
0.99
Eigen
Uncertain
0.52
Eigen_PC
Uncertain
0.24
FATHMM_MKL
Pathogenic
0.97
D
MutationTaster
Benign
1.0
D
Vest4
0.42
GERP RS
1.2

Splicing

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: rs762180740; hg19: chr19-46032442; API