rs144898877

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 2P and 12B. PM2BP6_Very_StrongBS1

The NM_130837.3(OPA1):​c.2880A>G​(p.Arg960Arg) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000404 in 1,536,586 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: 𝑓 0.0011 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00033 ( 0 hom. )

Consequence

OPA1
NM_130837.3 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: 0.393
Variant links:
Genes affected
OPA1 (HGNC:8140): (OPA1 mitochondrial dynamin like GTPase) The protein encoded by this gene is a nuclear-encoded mitochondrial protein with similarity to dynamin-related GTPases. The encoded protein localizes to the inner mitochondrial membrane and helps regulate mitochondrial stability and energy output. This protein also sequesters cytochrome c. Mutations in this gene have been associated with optic atrophy type 1, which is a dominantly inherited optic neuropathy resulting in progressive loss of visual acuity, leading in many cases to legal blindness. [provided by RefSeq, Aug 2017]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP6
Variant 3-193667177-A-G is Benign according to our data. Variant chr3-193667177-A-G is described in ClinVar as [Likely_benign]. Clinvar id is 138570.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr3-193667177-A-G is described in Lovd as [Benign]. Variant chr3-193667177-A-G is described in Lovd as [Likely_benign].
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00108 (165/152268) while in subpopulation AFR AF= 0.00241 (100/41556). AF 95% confidence interval is 0.00202. There are 0 homozygotes in gnomad4. There are 83 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
OPA1NM_130837.3 linkc.2880A>G p.Arg960Arg synonymous_variant Exon 29 of 31 ENST00000361510.8 NP_570850.2 O60313-10

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
OPA1ENST00000361510.8 linkc.2880A>G p.Arg960Arg synonymous_variant Exon 29 of 31 5 NM_130837.3 ENSP00000355324.2 O60313-10

Frequencies

GnomAD3 genomes
AF:
0.00108
AC:
165
AN:
152150
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00183
Gnomad ASJ
AF:
0.00433
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.000235
Gnomad OTH
AF:
0.00239
GnomAD3 exomes
AF:
0.000625
AC:
157
AN:
251380
Hom.:
0
AF XY:
0.000501
AC XY:
68
AN XY:
135862
show subpopulations
Gnomad AFR exome
AF:
0.00209
Gnomad AMR exome
AF:
0.00133
Gnomad ASJ exome
AF:
0.00486
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000167
Gnomad OTH exome
AF:
0.00147
GnomAD4 exome
AF:
0.000329
AC:
456
AN:
1384318
Hom.:
0
Cov.:
24
AF XY:
0.000300
AC XY:
208
AN XY:
693594
show subpopulations
Gnomad4 AFR exome
AF:
0.00203
Gnomad4 AMR exome
AF:
0.00143
Gnomad4 ASJ exome
AF:
0.00585
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000114
Gnomad4 OTH exome
AF:
0.000936
GnomAD4 genome
AF:
0.00108
AC:
165
AN:
152268
Hom.:
0
Cov.:
32
AF XY:
0.00111
AC XY:
83
AN XY:
74454
show subpopulations
Gnomad4 AFR
AF:
0.00241
Gnomad4 AMR
AF:
0.00183
Gnomad4 ASJ
AF:
0.00433
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000235
Gnomad4 OTH
AF:
0.00237
Alfa
AF:
0.00112
Hom.:
0
Bravo
AF:
0.00130
Asia WGS
AF:
0.000577
AC:
2
AN:
3478
EpiCase
AF:
0.000218
EpiControl
AF:
0.000415

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
Feb 29, 2016
Mayo Clinic Laboratories, Mayo Clinic
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Jan 30, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: not provided

- -

not specified Benign:2
Dec 26, 2013
GeneDx
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

-
PreventionGenetics, part of Exact Sciences
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Autosomal dominant optic atrophy classic form Benign:1
Jan 12, 2018
Illumina Laboratory Services, Illumina
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.46
CADD
Benign
16
DANN
Benign
0.74
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.28
Details are displayed if max score is > 0.2
DS_AG_spliceai
0.28
Position offset: -3

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: rs144898877; hg19: chr3-193384966; API