CCDC103 mutations cause primary ciliary dyskinesia by disrupting assembly of ciliary dynein arms.

CCDC103 mutations cause primary ciliary dyskinesia by disrupting assembly of ciliary dynein arms.
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CCDC103突变通过破坏睫状动力蛋白臂的组装而导致原发性睫状运动障碍。

DOI:
10.1038/ng.2277
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发表时间:
2012-05-13
期刊:
影响因子:
30.8
通讯作者:
Drummond IA
Drummond IA
中科院分区:
生物学1区
文献类型:
--
作者:
Panizzi JR;Becker-Heck A;Castleman VH;Al-Mutairi DA;Liu Y;Loges NT;Pathak N;Austin-Tse C;Sheridan E;Schmidts M;Olbrich H;Werner C;Häffner K;Hellman N;Chodhari R;Gupta A;Kramer-Zucker A;Olale F;Burdine RD;Schier AF;O'Callaghan C;Chung EM;Reinhardt R;Mitchison HM;King SM;Omran H;Drummond IA

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纤毛对于受精、呼吸清除、脑脊液循环和建立侧性是必不可少的。纤毛运动缺陷导致原发性纤毛运动障碍(PCD,MIM 242650),一种影响1:15- 30,000出生的疾病。纤毛运动需要组装驱动纤毛弯曲的多亚基动力蛋白臂。尽管在理解PCD的遗传基础方面取得了进展,但仍需确定几个PCD连锁基因座的突变。在这里,我们表明,斑马鱼纤毛麻痹突变体schmalhanstn 222(smh)突变体编码卷曲螺旋结构域包含103蛋白(Ccdc 103),foxj 1a调节基因。筛选146个不相关的PCD家族,发现6个家族的患者外动力蛋白臂减少,携带CCDC 103突变。在smh突变斑马鱼中动力蛋白臂组装被野生型而不是突变型人CCDC 103拯救。衣原体Ccdc 103作为紧密结合的轴突相关蛋白发挥作用。结果将Ccdc 103鉴定为一种新的动力蛋白臂附着因子,当突变时会导致原发性纤毛运动障碍。
Cilia are essential for fertilization, respiratory clearance, cerebrospinal fluid circulation, and to establish laterality. Cilia motility defects cause Primary Ciliary Dyskinesia (PCD, MIM 242650), a disorder affecting 1:15-30,000 births. Cilia motility requires the assembly of multisubunit dynein arms that drive cilia bending. Despite progress in understanding the genetic basis of PCD, mutations remain to be identified for several PCD linked loci. Here we show that the zebrafish cilia paralysis mutant schmalhanstn222 (smh) mutant encodes the coiled-coil domain containing 103 protein (Ccdc103), a foxj1a regulated gene. Screening 146 unrelated PCD families identified patients in six families with reduced outer dynein arms, carrying mutations in CCDC103. Dynein arm assembly in smh mutant zebrafish was rescued by wild-type but not mutant human CCDC103. Chlamydomonas Ccdc103 functions as a tightly bound, axoneme-associated protein. The results identify Ccdc103 as a novel dynein arm attachment factor that when mutated causes Primary Ciliary Dyskinesia.
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发表时间: 2010-10-26
影响因子: 11.1
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