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SOX5基因 (c.221C > T) 中的一个错误变异与智力障碍有关

Xiujuan Yang¹, Zhongzhi Gan², Xiaoling Guo¹

¹The Affiliated Foshan Women and Children Hospital, Guangdong Medical University, Foshan, 528000, China.

Orphanet journal of rare diseases

|February 5, 2025

概括

一种SOX5基因变异 (c.221C>T,p.Thr74Met) 在一个中国家庭中导致智力障碍. 这种突变增加了SOX5蛋白的稳定性,改变了细胞周期,并影响了骨和神经基因表达.

科学领域:

遗传学遗传学是一个
分子生物学分子生物学
神经发育障碍神经发育障碍

背景情况:

知识障碍 (ID) 可能源于影响神经发育的遗传突变.
SOX5基因与Lamb-Shaffer综合征有关,这是一种与ID相关的疾病.
识别特定的基因变异对于理解疾病机制至关重要.

研究的目的:

在一个智力残疾的中国家庭中调查SOX5基因变异 (c.221C>T,p.Thr74Met).
用体外实验来功能性地描述这种SOX5变体的影响.

主要方法:

进行了临床外体序列测序,以确定遗传变异.
生物信息学工具 (突变测试仪,PROVEAN,SIFT,I-Mutant,I-TASSER) 预测了变体的影响.
基因和蛋白质的表达,稳定性和细胞循环动态通过西斑,QPCR和流细胞计量进行了评估.

主要成果:

SOX5 c.221C>T误解变异被确定为家族中ID的原因.
突变细胞显示SOX5mRNA和蛋白质水平增加,稳定性提高.
突变的SOX5蛋白改变了细胞周期,并降低了ACAN,AXIN2,SOX9和PDGFRA基因表达的调节.

结论:

证实SOX5 p.Thr74Met变种与中国家庭的智力障碍有关.
突变的SOX5蛋白质表现出增加的稳定性,影响细胞循环调节,并降低参与骨和神经发育的关键基因的调节.

关键词:

这就是SOX5的SOX5.生物信息学预测预测 C.221C > T T 在这个问题上.下调调节下调.智力障碍智力障碍是一种智力障碍.蛋白质的稳定性蛋白质的稳定性

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