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Mendeliome v1.1330 MIEF1 Lucy Spencer gene: MIEF1 was added
gene: MIEF1 was added to Mendeliome. Sources: Literature
Mode of inheritance for gene: MIEF1 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: MIEF1 were set to 33632269
Phenotypes for gene: MIEF1 were set to Optic atrophy 14 (MIM#620550)
Review for gene: MIEF1 was set to AMBER
Added comment: PMID: 33632269
Inherited optic neuropathies cohort from france with nothing found in OPA1, OPA3 and WFS1 or mtDNA. 2 individuals (55 and 47yo) found to have missense variant in MIEF1, p.Arg146Trp has 35 hets 0 homs in gnomad, p.Tyr240Asn is absent. Both have non-syndromic late onset inherited optic neuropathies characterized by initial loss of peripheral visual fields.

Functional studies in HeLa cells- both missense localised to the mitochondria and formed oligomers similar to WT. MIEF1 normally regulates mitochondrial fission dynamics and causes an increase in mitochondrial fusion events, however both missense variants caused a significantly decreased mitochondrial fusion events.
Sources: Literature
Mendeliome v0.6123 OPA3 Zornitza Stark Marked gene: OPA3 as ready
Mendeliome v0.6123 OPA3 Zornitza Stark Gene: opa3 has been classified as Green List (High Evidence).
Mendeliome v0.6123 OPA3 Zornitza Stark Phenotypes for gene: OPA3 were changed from to 3-methylglutaconic aciduria, type III (MGA3) (MIM#258501), AR; Optic atrophy 3 with cataract (MIM#165300), AD
Mendeliome v0.6122 OPA3 Zornitza Stark Publications for gene: OPA3 were set to
Mendeliome v0.6121 OPA3 Zornitza Stark Mode of pathogenicity for gene: OPA3 was changed from to Other
Mendeliome v0.6120 OPA3 Zornitza Stark Mode of inheritance for gene: OPA3 was changed from Unknown to BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal
Mendeliome v0.6119 OPA3 Zornitza Stark reviewed gene: OPA3: Rating: GREEN; Mode of pathogenicity: Other; Publications: 25159689, 31119193, 31928268; Phenotypes: 3-methylglutaconic aciduria, type III (MGA3) (MIM#258501), AR, Optic atrophy 3 with cataract (MIM#165300), AD; Mode of inheritance: BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal
Mendeliome v0.0 OPA3 Zornitza Stark gene: OPA3 was added
gene: OPA3 was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: OPA3 was set to Unknown