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致病性分析和功能预测一种罕见的LDLR变体在家族性高胆固醇血症与威尔逊病结合的病原性分析和功能预测

Shuxia Huang¹, Yulan Lu², Yuguo Song³

¹Department of Pediatrics, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China.

Genes & genomics

|October 16, 2025

概括

在LDLR基因中,一种罕见的遗传变异c.599T>G (p.Phe200Cys) 与家族性高胆固醇血症 (FH) 和威尔逊病 (WD) 有关. 这种可能的致病变体会影响LDLR功能,导致结合性脂质失调症.

科学领域:

遗传学是一个遗传学.
生物化学生化学
分子生物学分子生物学

背景情况:

威尔逊病 (WD) 涉及铜代谢异常,可能导致脂质失调.
家庭性高胆固醇血症 (FH) 的特征是高的LDL-C,通常是由于LDLR基因变异.
在FH的WD中LDLRc.599T>G (p.Phe200Cys) 变异的致病性以前没有报告过.

研究的目的:

调查诊断为WD和可能的FH的儿科患者的脂质障碍症的遗传原因.
为了确定LDLRc.599T>G (p.Phe200Cys) 变种的致病性.
为了澄清WD,FH和已识别的遗传变异之间的关系.

主要方法:

使用DLCN标准进行临床和生化数据分析.
整体外体和桑格测序用于变种识别和验证.
对LDLR变体的致病性和结构功能评估的生物信息学分析.

主要成果:

患者被诊断为确定的FH;家庭成员显示可能/可能的FH.
在三个受影响的个体中,确定了一种可能致病的LDLRc.599T>G (p.Phe200Cys) 变种.
生物信息学表明,这种变体会影响LDLR联体结合域的结构和功能.

结论:

这种LDLRc.599T>G (p.Phe200Cys) 变异与联合FH和WD有关.
异性变体可能是致病性的,可能会损害LDLR的连接.
这一发现澄清了研究队列中复杂脂质失调症的遗传原因.

关键词:

这就是LDLR基因.生物信息学分析分析家庭性高胆固醇血症是什么?血统分析是如何进行的?威尔逊病是威尔逊病的一种疾病.

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