Abstract
Kinesins are a large superfamily of molecular motors. They move along microtubule filaments and are powered by the hydrolysis of ATP. This transport system is essential for neuronal function and survival. KIF1A belongs to the kinesin 3 family and involves in the anterograde transport of synaptic vesicle precursors along axons. Several studies confirmed that KIF1A mutations cause spastic paraplegia and sensory neuropathy in an autosomal-recessive fashion. A missense mutation in the KIF1A gene (p.Thr99Met) has been reported in a patient with intellectual disability (ID), axial hypotonia and peripheral spasticity. Mild atrophy of the cerebellar vermis was found on magnetic resonance imaging. The mutation was heterozygous and de novo. We identified the second patient with the p.T99M mutation in the KIF1A gene by whole-exome sequencing. He showed severe ID, spasticity, optic atrophy, neurogenic bladder, growth failure and progressive cerebellar atrophy. The p.T99M mutation may be a common recurrent mutation. We suppose that this specific mutation of KIF1A shows a novel neurodegenerative syndrome.
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References
Okada Y ., Yamazaki H ., Sekine-Aizawa Y ., Hirokawa N . The neuron-specific kinesin superfamily protein KIF1A is a unique monomeric motor for anterograde axonaltransport of synaptic vesicle precursors. Cell 1995; 81: 769–780.
Yonekawa Y ., Harada A ., Okada Y ., Funakoshi T ., Kanai Y ., Takei Y . et al. Defect in synaptic vesicle precursor transport and neuronal cell death in KIF1A motor protein-deficient mice. J. Cell Biol. 1998; 141: 431–441.
Erlich Y ., Edvardson S ., Hodges E ., Zenvirt S ., Thekkat P ., Shaag A . et al. Exome sequencing and disease-network analysis of a single family implicate a mutation in KIF1A in hereditary spastic paraparesis. Genome Res. 2011; 21: 658–664.
Rivière J. B ., Ramalingam S ., Lavastre V ., Shekarabi M ., Holbert S ., Lafontaine J . et al. KIF1A, an axonal transporter of synaptic vesicles, is mutated in hereditary sensory and autonomic neuropathy type 2. Am. J. Hum. Genet. 2011; 89: 219–230.
Klebe S ., Lossos A ., Azzedine H ., Mundwiller E ., Sheffer R ., Gaussen M . et al. KIF1A missense mutations in SPG30, an autosomal recessive spastic paraplegia: distinct phenotypes according to the nature of the mutations. Eur. J. Hum. Genet. 2012; 20: 645–649.
Hamdan F. F ., Gauthier J ., Araki Y ., Lin D. T ., Yoshizawa Y ., Higashi K . et al. Excess of de novo deleterious mutations in genes associated with glutamatergic systems in nonsyndromic intellectual disability. Am. J. Hum. Genet. 2011; 88: 306–316.
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This study was supported by the Health and Labour Research Grants in 2013 by Ministry of Health, Labour and welfare in Japan.
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Okamoto, N., Miya, F., Tsunoda, T. et al. KIF1A mutation in a patient with progressive neurodegeneration. J Hum Genet 59, 639–641 (2014). https://doi.org/10.1038/jhg.2014.80
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DOI: https://doi.org/10.1038/jhg.2014.80
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