在OTC中常见的两种意外变异与晚期发病相关
Steven H Lang1, Russell S Lo2, Gareth A Cromie2
1Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX 77030, USA; Texas Children's Hospital, Houston, TX 77030, USA.
HGG advances
|October 18, 2025
概括
两种常见的OTC基因变异,p. ((Arg40Cys) 和p. ((Phe354Cys),通常是低形态的. 这些变异通常与男性晚期发病的甲酸转糖酶缺乏症 (OTCD) 相关,没有报告新生儿高血.
科学领域:
- 遗传学 是一个遗传学.
- 生物化学 生物化学
- 代谢障碍 代谢障碍 代谢障碍
背景情况:
- 在无症状个体中,OTC基因的致病变体越来越多地被发现.
- 缺乏明确的指导来管理这些人.
- 两个常见的OTC变体,p.(Arg40Cys) 和p.(Phe354Cys),被选择用于表征.
研究的目的:
- 在表型和功能上描述两个常见的OTC变体:p.(Arg40Cys) 和p.(Phe354Cys).
- 为这些OTC变种的无症状个体的管理提供指导.
主要方法:
- 回顾性图表审查和文献审查以识别具有变异的个体.
- 查询尿素循环障碍联盟数据库.
- 使用经过验证的酵母基试验的功能性研究.
主要成果:
- 确定了14个p. ((Arg40Cys) 的个体和14个p. ((Phe354Cys) 的个体.
- 在男性或女性中没有报告新生儿高氨血症.
- 功能性测试显示,这两种变体都减少了酵母的生长,表明了低形态状态.
结论:
- 两种p. ((Arg40Cys) 和p. ((Phe354Cys) 的OTC变种都被归类为低形态.
- 这些变异通常与男性晚期发病的甲酸转糖酶缺乏症 (OTCD) 相关.
- 需要进一步的研究来制定全面的管理准则.
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