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Regression v0.542 FTH1 Zornitza Stark Phenotypes for gene: FTH1 were changed from Neuroferritinopathy (MONDO:0011638) to Neurodegeneration with brain iron accumulation 9, MIM# 620669
Regression v0.541 FTH1 Zornitza Stark reviewed gene: FTH1: Rating: GREEN; Mode of pathogenicity: None; Publications: ; Phenotypes: Neurodegeneration with brain iron accumulation 9, MIM# 620669; Mode of inheritance: MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Regression v0.533 FTH1 Bryony Thompson Publications for gene: FTH1 were set to 36778397
Regression v0.532 FTH1 Bryony Thompson Classified gene: FTH1 as Green List (high evidence)
Regression v0.532 FTH1 Bryony Thompson Added comment: Comment on list classification: Article describing the gene-disease association with neuroferritinopathy now published in HGG advances
Regression v0.532 FTH1 Bryony Thompson Gene: fth1 has been classified as Green List (High Evidence).
Regression v0.521 FTH1 Zornitza Stark Marked gene: FTH1 as ready
Regression v0.521 FTH1 Zornitza Stark Gene: fth1 has been classified as Amber List (Moderate Evidence).
Regression v0.521 FTH1 Zornitza Stark Classified gene: FTH1 as Amber List (moderate evidence)
Regression v0.521 FTH1 Zornitza Stark Gene: fth1 has been classified as Amber List (Moderate Evidence).
Regression v0.520 FTH1 Paul De Fazio gene: FTH1 was added
gene: FTH1 was added to Regression. Sources: Literature
Mode of inheritance for gene: FTH1 was set to MONOALLELIC, autosomal or pseudoautosomal, imprinted status unknown
Publications for gene: FTH1 were set to 36778397
Phenotypes for gene: FTH1 were set to Neuroferritinopathy (MONDO:0011638)
Mode of pathogenicity for gene: FTH1 was set to Other
Review for gene: FTH1 was set to AMBER
gene: FTH1 was marked as current diagnostic
Added comment: Note paper is pre-print hence Amber rating.

5 unrelated paediatric patients presented with developmental delay, epilepsy, and progressive neurologic decline. Heterozygous nonsense FTH1 variants were identified by WES in all patients, 4 of which were confirmed de novo. All variants are predicted to escape NMD and appear to act by a dominant toxic gain-of-function mechanism. p.F171* was recurrent in three unrelated individuals.

Patient fibroblasts show elevated ferritin protein levels, markers of oxidative stress, and increased susceptibility to iron accumulation. Targeted knock-down of mutant FTH1 transcript with rescues cellular phenotypes.

Note NMD-escape variants in gnomAD exist, upstream of the variants in patients.
Sources: Literature