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KMID : 1130620060020040268
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Journal of Clinical Neurology
2006 Volume.2 No. 4 p.268 ~ p.271
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Episodic Ataxia Type 2 due to a Deletion Mutation in the CACNA1A Gene in a Korean Family
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Kim Jeong-Min
Kim Ji-Soo
Ki Chang-Seok
Jeon Beom-Seok
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Abstract
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Episodic ataxia type 2 (EA-2) is an inherited disorder that is characterized by intermittent vertigo, ataxia, and interictal gaze-evoked nystagmus. Although abnormalities associated with this disorder have been found in the CACNA1A gene encoding the alpha1A (Cav2.1) subunit of the P/Q-type calcium channel, there are few reports of genetically confirmed EA-2 in Korea. In 1998, a Korean family with acetazolamide-responsive hereditary paroxysmal ataxia was reported, but the genetic background was not defined at that time. In the present study we performed direct sequencing of the entire exons and their flanking intronic sequences of the CACNA1A gene and found a deletion mutation (c.2042_2043delAG).
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KEYWORD
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Episodic Ataxia Type 2, CACNA1A, Korea
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