多重硫酶缺乏症是由编码人类C(alpha) -formylglycine生成酶的基因突变引起的
Thomas Dierks1, Bernhard Schmidt, Ljudmila V Borissenko
1Biochemie II, Universität Göttingen, Germany.
Cell
|May 22, 2003
概括
α-甲基甘氨酸 (FGly) 对于硫酸酶的功能至关重要. 它的缺乏导致多重硫酶缺乏症 (MSD),这种疾病可以通过恢复FGly生成酶 (FGE) 来治疗.
科学领域:
- 生物化学 生物化学
- 遗传学 遗传学是一种遗传学.
- 分子生物学分子生物学
背景情况:
- α-甲基甘氨酸 (FGly) 是真核生物硫酸酶中必不可少的催化残留物.
- FGly是从内 плазма网膜中的氨酸在翻译后形成的.
- 在FGly形成中的遗传缺陷导致多重硫酶缺乏症 (MSD),一种溶酶体储存障碍.
研究的目的:
- 识别和描述FGly生成酶 (FGE) 和它的基因.
- 通过分析FGE突变来调查MSD的遗传基础.
- 通过评估FGE基因疗法来探索MSD的治疗策略.
主要方法:
- 净化FGly生成酶 (FGE) 的过程.
- 在MSD患者中FGE的基因鉴定和测序.
- 通过cDNA转导在患者衍生的纤维细胞中FGE的功能分析.
主要成果:
- 净化了FGly生成酶 (FGE),并确定了其编码基因.
- 在7名MSD患者中发现了FGE基因中的9个突变.
- 在患者纤维细胞中,FGEcDNA的转导部分恢复了硫酶活性,与突变cDNA不同.
结论:
- FGE基因对于FGly形成和硫酶活性至关重要.
- 在FGE基因的突变导致多重硫酶缺乏症 (MSD).
- 使用功能性FGEcDNA的基因治疗显示出治疗MSD的潜力.
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