Hiroshi Doi, Shigeru Koyano, Satoko Miyatake, Shinji Nakajima, Yuka Nakazawa, Misako Kunii, Atsuko Tomita-Katsumoto, Kayoko Oda, Yukie Yamaguchi, Ryoko Fukai, Shingo Ikeda, Rumiko Kato, Katsuhisa Ogata, Shun Kubota, Noriko Hayashi, Keita Takahashi, Mikiko Tada, Kenichi Tanaka, Mitsuko Nakashima, Yoshinori Tsurusaki, Noriko Miyake, Hirotomo Saitsu, Tomoo Ogi, Michiko Aihara, Hideyuki Takeuchi, Naomichi Matsumoto, Fumiaki Tanaka
Autosomal recessive cerebellar ataxias (ARCAs) are clinically and genetically heterogeneous neurological disorders. Through whole-exome sequencing of Japanese ARCA patients, we identified three index patients from unrelated families who had biallelic mutations in ERCC4. ERCC4 mutations have been known to cause xeroderma pigmentosum complementation group F (XP-F), Cockayne syndrome, and Fanconi anemia phenotypes. All of the patients described here showed very slowly progressive cerebellar ataxia and cognitive decline with choreiform involuntary movement, with young adolescent or midlife onset...
February 5, 2018: Journal of Human Genetics