对DLG3相关的神经发育障碍的进一步表型划分
Marlène Malbos1,2, Thierry Gautier3, Amelle Shillington4
1Centre de Génétique, CRMRs "Anomalies du Développement et syndromes malformatifs" et "Déficiences Intellectuelles de causes rares", "GenoPsy" et "Neurogène", FHU-TRANSLAD, CHU Dijon Bourgogne, Dijon, France. marlene.malbos@chu-dijon.fr.
这项研究通过分析新的和现有的DLG3基因变异数据来扩大对X链接的智力发育障碍90的理解. 研究结果表明,神经发育障碍的综合征比以前认可的更广泛,更广泛.
科学领域:
- 遗传学 是一个遗传学.
- 神经发育障碍 神经发育障碍
- 分子生物学分子生物学
背景情况:
- SAP102,一个由DLG3基因编码的脚手架蛋白质,与X链接的智力发育障碍90 (XLIDD90) 有关.
- 血性DLG3变体,特别是功能丧失,与这种疾病有关.
- 确定DLG3变异的全临床和分子谱对于准确的诊断和管理至关重要.
研究的目的:
- 描述与智力障碍相关的DLG3变异的临床和分子谱.
- 重新分类具有不确定的意义的变体,并扩大XLIDD90.0.0的定义.
- 为国际临床系列提供具有新型DLG3变异的个体.
主要方法:
- 收集了来自17个新个体的国际数据,并审查了来自37个已发表的DLG3变异家族的数据.
- 利用了家族分离,出版数据库频率,蛋白质结构建模和in silico预测得分.
- 根据综合分析,重新分类了六种误解变异,可能是良性的.
主要成果:
- 确定了16种新的DLG3变种,并审查了34种先前报告的变种.
- 重新分类了六种误解变异,包括一个新队列和文献中常见的变异,可能是良性的.
- 在新报告的个体中观察到与形态特征相关的智力障碍,这表明XLIDD90.90的表现更加综合征.
结论:
- 该研究提供了一个具有DLG3变异个体的国际临床系列,增强了该病症谱的定义.
- 这些发现支持将XLIDD90的分类扩展到包括一种更为综合征性神经发育障碍.
- 准确的变异分类和全面的表型化对于理解DLG3相关疾病至关重要.
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