在人类SOX9基因中单核酸多态的功能性,结构性和致病性评估
Md Saklain Tanver Shadhin1,2, Md Sohel Mia1,2, Tomal Krishno Das Topu1,2
1Department of Nutrition and Food Technology, Jashore University of Science and Technology, Jashore, 7408, Bangladesh.
Scientific reports
|December 11, 2025
概括
SOX9基因中的单核酸多态 (SNP) 可以改变蛋白质结构和功能,可能导致乳腺癌等疾病. 计算分析发现了包括D85H在内的几个破坏性SOX9突变,影响了蛋白质的稳定性和功能.
科学领域:
- 遗传学 是一个遗传学.
- 分子生物学分子生物学
- 生物信息学是一种生物信息学.
背景情况:
- 单核酸多态 (SNP) 是与人类疾病相关的关键遗传变异.
- SOX9是一种关键的转录因子,影响细胞生长和乳腺癌的发展.
- 在SOX9中误解SNP对细胞通路和瘤发育的影响尚未完全理解.
研究的目的:
- 用计算方法研究SOX9基因误解突变对蛋白质结构和功能的影响.
- 确定可能导致疾病发展的特定SOX9SNP.
主要方法:
- 在SOX9基因中对5,029个已识别的SNP进行生物信息分析.
- 用SIFT分析预测有害突变.
- 分子动力学 (MD) 模拟,主要成分分析 (PCA) 和其他用于分析蛋白质结构和动力学的计算技术.
主要成果:
- 在SOX9中确定了1,158个误解SNP,其中9个由SIFT预测是有害的.
- 七个错误的SNP,包括DNA结合HMG盒中的D85H,被认为是有害的,可能与疾病有关.
- 与野生型SOX9.9相比,MD模拟显示D85H突变体的蛋白质稳定性和灵活性发生变化.
结论:
- 在SOX9中错误的SNP可以显著改变蛋白质的结构,稳定性和功能.
- 在SOX9中D85H突变是一种高风险的变体,可能对引起疾病产生潜在影响.
- 这些发现为进一步研究SOX9突变及其在人类疾病中的作用提供了基础.
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