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AOPEP variants as a novel cause of recessive dystonia: Generalized dystonia and dystonia-parkinsonism.
Parkinsonism Relat. Disord. 97, 52-56 (2022)
INTRODUCTION: The genetic basis of autosomal-recessive dystonia remains poorly understood. Our objective was to report identification of additional individuals with variants in AOPEP, a recently described gene for recessively inherited dystonic disorders (OMIM:619565). METHODS: Ongoing analysis on a high-throughput genetic platform and international case-recruitment efforts were undertaken. RESULTS: Novel biallelic, likely pathogenic loss-of-function alleles were identified in two pedigrees of different ethnic background. Two members of a consanguineous Iranian family shared a homozygous c.1917-1G>A essential splice-site variant and featured presentations of adolescence-onset generalized dystonia. An individual of Chinese descent, homozygous for the nonsense variant c.1909G>T (p.Glu637*), displayed childhood-onset generalized dystonia combined with later-manifesting parkinsonism. One additional Iranian patient with adolescence-onset generalized dystonia carried an ultrarare, likely protein-damaging homozygous missense variant (c.1201C>T [p.Arg401Trp]). CONCLUSIONS: These findings support the implication of AOPEP in recessive forms of generalized dystonia and dystonia-parkinsonism. Biallelic AOPEP variants represent a worldwide cause of dystonic movement-disorder phenotypes and should be considered in dystonia molecular testing approaches.
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Anmerkungen
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Schlagwörter
Aopep Variants ; Dystonia-parkinsonism ; Exome Sequencing ; Isolated Dystonia ; Recessive Dystonia
Sprache
englisch
Veröffentlichungsjahr
2022
HGF-Berichtsjahr
2022
ISSN (print) / ISBN
1353-8020
e-ISSN
1873-5126
Zeitschrift
Parkinsonism & Related Disorders
Quellenangaben
Band: 97,
Seiten: 52-56
Verlag
Elsevier
Begutachtungsstatus
Peer reviewed
Institut(e)
Institute of Neurogenomics (ING)
POF Topic(s)
30205 - Bioengineering and Digital Health
Forschungsfeld(er)
Genetics and Epidemiology
PSP-Element(e)
G-503200-001
G-503292-001
G-503292-001
Förderungen
Deutsche Forschungsgemeinschaft
Technische Universität München
Helmholtz Zentrum Munchen
Technische Universität München
Helmholtz Zentrum Munchen
WOS ID
WOS:000788096900001
Scopus ID
85126529997
PubMed ID
35306330
Erfassungsdatum
2022-07-18