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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 v0.9253 OPA1 Zornitza Stark Phenotypes for gene: OPA1 were changed from Mitochondrial DNA depletion syndrome 14 (encephalocardiomyopathic type)MIM# 6168963; Behr syndrome MIM#210000, AR; Optic atrophy 1, MIM#165500; Optic atrophy plus syndrome, MIM# 125250 to Mitochondrial DNA depletion syndrome 14 (encephalocardiomyopathic type)MIM# 616896; Behr syndrome MIM#210000, AR; Optic atrophy 1, MIM#165500; Optic atrophy plus syndrome, MIM# 125250
Mendeliome v0.1239 OPA1 Zornitza Stark Marked gene: OPA1 as ready
Mendeliome v0.1239 OPA1 Zornitza Stark Gene: opa1 has been classified as Green List (High Evidence).
Mendeliome v0.1239 OPA1 Zornitza Stark Phenotypes for gene: OPA1 were changed from to Mitochondrial DNA depletion syndrome 14 (encephalocardiomyopathic type)MIM# 6168963; Behr syndrome MIM#210000, AR; Optic atrophy 1, MIM#165500; Optic atrophy plus syndrome, MIM# 125250
Mendeliome v0.1238 OPA1 Zornitza Stark Mode of inheritance for gene: OPA1 was changed from Unknown to BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal
Mendeliome v0.1220 OPA1 Ee Ming Wong reviewed gene: OPA1: Rating: GREEN; Mode of pathogenicity: None; Publications: PMID: 30165240; Phenotypes: 1. ?Mitochondrial DNA depletion syndrome 14 (encephalocardiomyopathic type) 6168963, 2. {Glaucoma, normal tension, susceptibility to} 6066573, 3. Behr syndrome 210000 AR, 4. Optic atrophy 1 165500 AD, 5. Optic atrophy plus syndrome 125250 AD; Mode of inheritance: BOTH monoallelic and biallelic (but BIALLELIC mutations cause a more SEVERE disease form), autosomal or pseudoautosomal; Current diagnostic: yes
Mendeliome v0.0 OPA1 Zornitza Stark gene: OPA1 was added
gene: OPA1 was added to Mendeliome_VCGS. Sources: Expert Review Green,Victorian Clinical Genetics Services
Mode of inheritance for gene: OPA1 was set to Unknown