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Mitochondrial disorders v2.49 FDX2 Sarah Leigh Phenotypes for gene: FDX2 were changed from Mitochondrial myopathy, episodic, with optic atrophy and reversible leukoencephalopathy, 251900 to Mitochondrial myopathy, episodic, with optic atrophy and reversible leukoencephalopathy OMIM:251900; mitochondrial myopathy, episodic, with optic atrophy and reversible leukoencephalopathy MONDO:0020714
Mitochondrial disorders v2.3 FDX2 Louise Daugherty Tag watchlist was removed from gene: FDX2.
Mitochondrial disorders v2.3 FDX2 Louise Daugherty commented on gene: FDX2: As a result of watchlist tag audit the watchlist tag was removed from FDX2- this is now a green gene with sufficient evidence/review
Mitochondrial disorders v1.319 FDX2 Sarah Leigh Classified gene: FDX2 as Green List (high evidence)
Mitochondrial disorders v1.319 FDX2 Sarah Leigh Added comment: Comment on list classification: This gene was added as Green due to the overall review and evidence assessment from the GMS mitochondrial specialist test group, submitted by Carl Fratter (May 2019) on behalf of GMS mitochondrial specialist test group: 3 unrelated familties; iron sulfur pathway.
From panel: Possible mitochondrial disorder - nuclear genes (Version 0.187).
Mitochondrial disorders v1.319 FDX2 Sarah Leigh Gene: fdx2 has been classified as Green List (High Evidence).
Mitochondrial disorders v1.318 FDX2 Sarah Leigh Publications for gene: FDX2 were set to 30010796; 24281368
Mitochondrial disorders v1.293 FDX2 Sarah Leigh Source NHS GMS was added to FDX2.
Source Expert Review Green was added to FDX2.
Rating Changed from Amber List (moderate evidence) to Green List (high evidence)
Mitochondrial disorders v1.247 FDX2 Ivone Leong Classified gene: FDX2 as Amber List (moderate evidence)
Mitochondrial disorders v1.247 FDX2 Ivone Leong Added comment: Comment on list classification: Promoted from red to amber, based on the expert review by Zornitza Stark (Australian Genomics) and the literature.

FDX2 is associated with a phenotype in OMIM and not Gene2Phenotype.

PMID: 24281368 describes a patient born of consanguineous Jewish Moroccan patents with episodic mitochondrial myopathy without optic atrophy or reversible leukoencephalopathy. The authors identified a homozygous missense variant in this gene (M1L).

PMID: 30010796 describes 6 patients from 2 apparently unrelated Brazilian familes from the same geographical region with episodic mitochondrial myopathy. All affected individuals had the same homozygous variant (P144L). No haplotype analysis was performed.

As there are only 2 different variants reported in this gene and no haplotype analysis was performed in PMID: 30010796 it was decided that there is currently not enough evidence to promote this gene to green status. However, a watch-list tag has also been put on this gene.
Mitochondrial disorders v1.247 FDX2 Ivone Leong Gene: fdx2 has been classified as Amber List (Moderate Evidence).
Mitochondrial disorders v1.246 FDX2 Ivone Leong Tag watchlist tag was added to gene: FDX2.
Mitochondrial disorders v1.246 FDX2 Ivone Leong Publications for gene: FDX2 were set to 30010796
Mitochondrial disorders v1.245 FDX2 Ivone Leong Mode of inheritance for gene: FDX2 was changed from Unknown to BIALLELIC, autosomal or pseudoautosomal
Mitochondrial disorders v1.244 FDX2 Ivone Leong Added comment: Comment on phenotypes: The phenotype was previously "?Mitochondrial myopathy with lactic acidosis, association with, 255125"; however, this OMIM number corresponds to the gene, ISCU. I have removed this OMIM number and replaced with "Mitochondrial myopathy, episodic, with optic atrophy and reversible leukoencephalopathy, 251900".
Mitochondrial disorders v1.244 FDX2 Ivone Leong Phenotypes for gene: FDX2 were changed from No OMIM phenotype?Mitochondrial myopathy with lactic acidosis, association with, 255125 to Mitochondrial myopathy, episodic, with optic atrophy and reversible leukoencephalopathy, 251900
Mitochondrial disorders v1.243 FDX2 Ivone Leong Publications for gene: FDX2 were set to
Mitochondrial disorders FDX2 Zornitza Stark reviewed gene: FDX2