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Translation initiator EIF4G1 mutations in familial Parkinson disease
Authors:Chartier-Harlin Marie-Christine  Dachsel Justus C  Vilariño-Güell Carles  Lincoln Sarah J  Leprêtre Frédéric  Hulihan Mary M  Kachergus Jennifer  Milnerwood Austen J  Tapia Lucia  Song Mee-Sook  Le Rhun Emilie  Mutez Eugénie  Larvor Lydie  Duflot Aurélie  Vanbesien-Mailliot Christel  Kreisler Alexandre  Ross Owen A  Nishioka Kenya  Soto-Ortolaza Alexandra I  Cobb Stephanie A  Melrose Heather L  Behrouz Bahareh  Keeling Brett H  Bacon Justin A  Hentati Emna  Williams Lindsey  Yanagiya Akiko  Sonenberg Nahum  Lockhart Paul J  Zubair Abba C  Uitti Ryan J  Aasly Jan O  Krygowska-Wajs Anna  Opala Grzegorz  Wszolek Zbigniew K
Affiliation:1Université Lille Nord de France, F-59000 Lille, France;2Institut National de la Santé et de la Recherche Médicale (Inserm) UMR837, Institut de Recherches sur le Cancer de Lille (IRCL), Place de Verdun, 59045 Lille Cedex, IFR114 IMPRT F-59000 Lille, France;3Departments of Neurology and Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA;4Department of Medical Genetics, University of British Columbia, Vancouver, British Columbia V6T 2B5, Canada;5Centre Hospitalier Régional Universitaire de Lille(CHRU), Department of Neurology and Movement Disorders, F-59000 Lille, France;6Université des Sciences et Technologies de Lille (USTL), Department of Neurosciences, Villeneuve d'Ascq, F-59655 France;7Department of Biochemistry and Goodman Cancer Research Centre, McGill University, Montreal, Quebec H3A 3R1, Canada;8Bruce Lefroy Centre for Genetic Health Research, Murdoch Childrens Research Institute, Parkville, Victoria 3052, Australia;9Department of Laboratory Medicine and Pathology, Mayo Clinic, Jacksonville, FL 32224, USA;10Department of Neurology, St. Olav's Hospital, Trondheim N-7006, Norway;11Department of Neurology, Collegium Medicum, Jagiellonian University, Krakow 31-358, Poland;12Department of Neurology, Aging, Degenerative and Cerebrovascular Disorders, Medical University of Silesia, Katowice 40-055, Poland;13Department of Neurology, Mayo Clinic, Rochester, MN 55909, USA;14Dublin Neurological Institute at the Mater Misericordiae University Hospital, Dublin 7, Ireland;15Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Dublin 4, Ireland;16Department of Neurology, St Vincent's University Hospital, Dublin 4, Ireland;17Institute of Neurology, Catholic University, Rome 00168, Italy;18Mendel Laboratory, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Casa Sollievo della Sofferenza, San Giovanni Rotondo, 71013 Italy;19Department of Medical and Surgical Pediatric Sciences, University of Messina, Messina, 98124 Italy;20Division of Human Genetics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA;21Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN 46202, USA;22GlaxoSmithKline Pharmaceuticals, Research and Development, Harlow, Greenford, Hammersmith CM19 5AW, UK;23Service de Neurologie, Institut National de Neurologie, 1007 La Rabta, Tunis, Tunisia
Abstract:Genome-wide analysis of a multi-incident family with autosomal-dominant parkinsonism has implicated a locus on chromosomal region 3q26-q28. Linkage and disease segregation is explained by a missense mutation c.3614G>A (p.Arg1205His) in eukaryotic translation initiation factor 4-gamma (EIF4G1). Subsequent sequence and genotype analysis identified EIF4G1 c.1505C>T (p.Ala502Val), c.2056G>T (p.Gly686Cys), c.3490A>C (p.Ser1164Arg), c.3589C>T (p.Arg1197Trp) and c.3614G>A (p.Arg1205His) substitutions in affected subjects with familial parkinsonism and idiopathic Lewy body disease but not in control subjects. Despite different countries of origin, persons with EIF4G1 c.1505C>T (p.Ala502Val) or c.3614G>A (p.Arg1205His) mutations appear to share haplotypes consistent with ancestral founders. eIF4G1 p.Ala502Val and p.Arg1205His disrupt eIF4E or eIF3e binding, although the wild-type protein does not, and render mutant cells more vulnerable to reactive oxidative species. EIF4G1 mutations implicate mRNA translation initiation in familial parkinsonism and highlight a convergent pathway for monogenic, toxin and perhaps virally-induced Parkinson disease.
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