NM_025136.4:c.367C>A

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_ModerateBP6_Moderate

The NM_025136.4(OPA3):​c.367C>A​(p.Arg123Arg) variant causes a synonymous change. The variant allele was found at a frequency of 0.000000688 in 1,453,358 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

OPA3
NM_025136.4 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 6.00

Publications

0 publications found
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]
OPA3 Gene-Disease associations (from GenCC):
  • optic atrophy 3
    Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Labcorp Genetics (formerly Invitae), Orphanet
  • 3-methylglutaconic aciduria type 3
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Myriad Women’s Health, G2P, Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.35).
BP6
Variant 19-45553687-G-T is Benign according to our data. Variant chr19-45553687-G-T is described in ClinVar as Likely_benign. ClinVar VariationId is 462147.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_025136.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
OPA3
NM_025136.4
MANE Select
c.367C>Ap.Arg123Arg
synonymous
Exon 2 of 2NP_079412.1
OPA3
NM_001017989.3
c.143-24231C>A
intron
N/ANP_001017989.2

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
OPA3
ENST00000263275.5
TSL:1 MANE Select
c.367C>Ap.Arg123Arg
synonymous
Exon 2 of 2ENSP00000263275.4
OPA3
ENST00000323060.4
TSL:1
c.143-24231C>A
intron
N/AENSP00000319817.3
OPA3
ENST00000544371.1
TSL:2
c.208C>Ap.Arg70Arg
synonymous
Exon 2 of 2ENSP00000442839.1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
6.88e-7
AC:
1
AN:
1453358
Hom.:
0
Cov.:
61
AF XY:
0.00
AC XY:
0
AN XY:
723144
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33404
American (AMR)
AF:
0.00
AC:
0
AN:
44318
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26036
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39610
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86090
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
47388
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5740
European-Non Finnish (NFE)
AF:
9.00e-7
AC:
1
AN:
1110598
Other (OTH)
AF:
0.00
AC:
0
AN:
60174
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
Cov.:
33

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

3-Methylglutaconic aciduria type 3;C1833809:Optic atrophy 3 Benign:1
Apr 25, 2023
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.35
CADD
Benign
12
DANN
Benign
0.95
PhyloP100
6.0

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

Other links and lift over

dbSNP: rs1022155897; hg19: chr19-46056945; API