Genotype in the 24-kDa subunit gene (NDUFV2) of mitochondrial complex I and susceptibility to Parkinson disease.
We analyzed the gene encoding the 24-kDa subunit of mitochondrial complex I, which has been implicated in the pathogenesis of Parkinson disease (PD). We set out to identify a polymorphism in the 24-kDa subunit gene (NDUFV2) in patients with PD and determine whether genetic polymorphism of this gene is associated with a higher risk of PD. The subjects comprised 126 patients with PD, and the control group comprised 113 unrelated individuals without neurodegenerative disorders. A novel polymorphism (Ala29Val) in the mitochondrial targeting sequence of NDUFV2 was found in patients with PD. The distribution of the three genotypes was significantly different between the two groups (chi 2 = 7.53, df = 2, P = 0.023). The frequency of homozygotes for the mutation was significantly higher in PD patients (23.8%) than in control subjects (11.5%, Fisher's exact test, P = 0.0099 < 0.01). The risk of developing PD associated with homozygosity for this mutation was calculated as 2.40 (95% CI: 1.18-4.88). NDUFV2 constitutes one genetic risk factor for PD, and the mutation may well be a cause of complex I deficiency in this disease.
Hattori
N
N
Department of Neurology, Juntendo University School of Medicine, Tokyo, Japan. nhattori@med.juntendo.ac.jp
Yoshino
H
H
Tanaka
M
M
Suzuki
H
H
Mizuno
Y
Y
D000595:Amino Acid Sequence; D000818:Animals; D002417:Cattle; D004198:Disease Susceptibility; D005838:Genotype; D006801:Humans; D008928:Mitochondria; D008969:Molecular Sequence Data; D016660:NAD(P)H Dehydrogenase (Quinone) / Q000235:genetics*; D010300:Parkinson Disease / Q000201:enzymology* / Q000235:genetics*; D051381:Rats; D017386:Sequence Homology, Amino Acid
D016660:NAD(P)H Dehydrogenase (Quinone)