预测TSHR的致病性 意义不明的错误变体:一个综合计算研究
Tassneem Awad Hajali1, Islamia Ibrahim Ahmed Omer1, Mohamad Y Rezk2
1Department of Clinical Science, College of Medicine, Sulaiman AlRajhi University, P.O. Box 777, AlBukayriah 51941, Qassim, Saudi Arabia.
International journal of molecular sciences
|February 13, 2026
概括
生物信息学分析确定了三种不确定意义的甲状腺刺激激素受体基因 (TSHR) 变异,作为致病性. 这些TSHR变体可能通过影响受体结构和信号传递而导致甲状腺功能障碍.
科学领域:
- 内分泌学和遗传学 在内分泌学和遗传学
- 分子生物学和生物信息学
背景情况:
- 甲状腺刺激激素受体基因 (TSHR) 的致病变体导致各种甲状腺疾病.
- 评估遗传变异的致病性至关重要,特别是使用先进的生物信息学工具.
研究的目的:
- 在gnomAD v4.1.0数据库中被归类为不确定意义的变异 (VUSs) 的TSHR变异的致病潜力.
- 用多种生物信息学方法评估已识别的TSHR VUSs的结构和功能影响.
主要方法:
- 从gnomAD v4.1.0中获取了TSHR变体,并根据ClinVar.0对错误VUS进行过.
- 采用各种生物信息学工具来分析TSHR二次/三维结构,蛋白质稳定性和进化保护.
- 进行了分子动力学模拟,以评估VUS对TSHR蛋白质结构的影响.
主要成果:
- 在gnomAD v4.1.0.0中的1026个错误变体中识别了68个错误的TSHR VUS.
- 三种变体 (p.Cys29Trp,p.Leu57Pro,p.Phe97Ser) 被所有生物信息学工具一致预测为致病性.
- 这三种变体位于保存的细胞外区域,并在分子动力学模拟中诱导结构不稳定.
结论:
- 三个TSHR误解VUS显示出致病潜力.
- 这些变体可能通过破坏TSHR的结构和信号完整性来导致甲状腺功能障碍.
相关概念视频
Histone Variants at the Centromere
5.1K
Histone variants are the histone proteins with structural and sequence variations. These variants may be regarded as “mutant” forms that replace their canonical histone counterparts in the nucleosomes. Specific post-translational modifications on the histone variants enable further chromatin complexity and regulate tissue-specific gene expression. The most common histone variants are from histone H2A, H2B, and linker histone H1 families. However, several variants of histone H3...
5.1K
Imaging Studies III: Computed Tomography
410
DefinitionComputed Tomography (CT) of the genitourinary (GU) tract is a non-invasive imaging modality that utilizes X-rays and computer processing to generate detailed cross-sectional images of the urinary system, encompassing the kidneys, ureters, bladder, and adjacent structures such as the adrenal glands.PurposeCT scans of the GU tract serve several diagnostic and therapeutic purposes, including:Diagnosis of Urinary Tract Diseases: Detects kidney stones, tumors, cysts, and congenital...
410
Statistical Significance
22.3K
Once data is collected from both the experimental and the control groups, a statistical analysis is conducted to find out if there are meaningful differences between the two groups. A statistical analysis determines how likely any difference found is due to chance (and thus not meaningful). In psychology, group differences are considered meaningful, or significant, if the odds that these differences occurred by chance alone are 5 percent or less. Stated another way, if we repeated this...
22.3K
Significance of Center of Mass
7.7K
The center of mass of an object is defined as the mass-weighted average position of all the particles that comprise the object. The significance of the center of mass of an object can be seen by looking at its dynamics. The time derivative of the center of mass gives its velocity, assuming that the object's mass remains constant over time. Furthermore, the total linear momentum of an object can be seen as the linear momentum of a single particle of the object's total mass moving with...
7.7K
The Significance of Membrane Transport
42.8K
The transport of solutes across the cell membrane is essential for metabolic processes, like maintaining cell size and volume, generating the action potential, exchanging nutrients and gases, etc. Membrane transport can be either passive or active. It can be simple diffusion, facilitated, or mediated transport aided by transport proteins such as transporters and channels.
Transporters facilitate either an active or passive movement of solutes. They can allow a single-molecule transport down its...
Transporters facilitate either an active or passive movement of solutes. They can allow a single-molecule transport down its...
42.8K
Cholesterol: Significance and Regulation
1.5K
Although not a source of energy, cholesterol plays a significant role as a foundational structure for bile salts, steroid hormones, and vitamin D, as well as being a crucial component of plasma membranes. Approximately 15% of blood cholesterol is derived from our diet, with the remainder synthesized from acetyl CoA by the liver and intestines. Cholesterol is eliminated from the body through its conversion into bile salts, which are eventually discarded in the feces.
Considering cholesterol and...
Considering cholesterol and...
1.5K


