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Translation initiator EIF4G1 mutations in familial Parkinson disease.


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.

SUBMITTER: Chartier-Harlin MC 

PROVIDER: S-EPMC3169825 | biostudies-literature | 2011 Sep

REPOSITORIES: biostudies-literature

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Translation initiator EIF4G1 mutations in familial Parkinson disease.

Chartier-Harlin Marie-Christine MC   Dachsel Justus C JC   Vilariño-Güell Carles C   Lincoln Sarah J SJ   Leprêtre Frédéric F   Hulihan Mary M MM   Kachergus Jennifer J   Milnerwood Austen J AJ   Tapia Lucia L   Song Mee-Sook MS   Le Rhun Emilie E   Mutez Eugénie E   Larvor Lydie L   Duflot Aurélie A   Vanbesien-Mailliot Christel C   Kreisler Alexandre A   Ross Owen A OA   Nishioka Kenya K   Soto-Ortolaza Alexandra I AI   Cobb Stephanie A SA   Melrose Heather L HL   Behrouz Bahareh B   Keeling Brett H BH   Bacon Justin A JA   Hentati Emna E   Williams Lindsey L   Yanagiya Akiko A   Sonenberg Nahum N   Lockhart Paul J PJ   Zubair Abba C AC   Uitti Ryan J RJ   Aasly Jan O JO   Krygowska-Wajs Anna A   Opala Grzegorz G   Wszolek Zbigniew K ZK   Frigerio Roberta R   Maraganore Demetrius M DM   Gosal David D   Lynch Tim T   Hutchinson Michael M   Bentivoglio Anna Rita AR   Valente Enza Maria EM   Nichols William C WC   Pankratz Nathan N   Foroud Tatiana T   Gibson Rachel A RA   Hentati Faycal F   Dickson Dennis W DW   Destée Alain A   Farrer Matthew J MJ  

American journal of human genetics 20110901 3


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 i  ...[more]

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