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Stenton, S. ; Piekutowska-Abramczuk, D.* ; Kulterer, L. ; Kopajtich, R. ; Claeys, K.G.* ; Ciara, E.* ; Eisen, J.* ; Płoski, R.* ; Pronicka, E.* ; Malczyk, K.* ; Wagner, M. ; Wortmann, S.B. ; Prokisch, H.

Expanding the clinical and genetic spectrum of FDXR deficiency by functional validation of variants of uncertain significance.

Hum. Mutat. 42, 310-319 (2021)
Verlagsversion Postprint DOI PMC
Open Access Hybrid
Creative Commons Lizenzvertrag
Ferrodoxin reductase (FDXR) deficiency is a mitochondrial disease described in recent years primarily in association with optic atrophy, acoustic neuropathy, and developmental delays. Here, we identified seven unpublished patients with FDXR deficiency belonging to six independent families. These patients show a broad clinical spectrum ranging from Leigh syndrome with early demise and severe infantile-onset encephalopathy, to milder movement disorders. In total nine individual pathogenic variants, of which seven were novel, were identified in FDXR using whole exome sequencing in suspected mitochondrial disease patients. Over 80% of these variants are missense, a challenging variant class in which to determine pathogenic consequence, especially in the setting of nonspecific phenotypes and in the absence of a reliable biomarker, necessitating functional validation. Here we implement an Arh1-null yeast model to confirm the pathogenicity of variants of uncertain significance in FDXR, bypassing the requirement for patient-derived material.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Functional Validation ; Leigh Syndrome ; Mitochondrial Disease ; Phenotype ; Variant Of Uncertain Significance; Adrenodoxin; Ferredoxin; Biogenesis; Mutations; Sequence; Disease
Sprache englisch
Veröffentlichungsjahr 2021
Prepublished im Jahr 2020
HGF-Berichtsjahr 2020
ISSN (print) / ISBN 1059-7794
e-ISSN 1098-1004
Zeitschrift Human Mutation
Quellenangaben Band: 42, Heft: 3, Seiten: 310-319 Artikelnummer: , Supplement: ,
Verlag Wiley
Verlagsort 111 River St, Hoboken 07030-5774, Nj Usa
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Human Genetics (IHG)
POF Topic(s) 30501 - Systemic Analysis of Genetic and Environmental Factors that Impact Health
Forschungsfeld(er) Genetics and Epidemiology
PSP-Element(e) G-500700-001
Förderungen German BMBF and Horizon2020 through the E‐Rare project GENOMIT
DOI 10.1002/humu.24160
WOS ID WOS:000604115700001
Scopus ID 85099072169
PubMed ID 33348459
Erfassungsdatum 2021-01-14
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