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相关概念视频

Allosteric Proteins-ATCase01:19

Allosteric Proteins-ATCase

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Binding sites linkages can regulate a protein's function.  For example, enzyme activity is often regulated through a feedback mechanism where the end product of the biochemical process serves as an inhibitor.
Aspartate transcarbamoylase (ATCase) is a cytosolic enzyme that catalyzes the condensation of L-aspartate and carbamoyl phosphate to  N-carbamoyl-L-aspartate. This reaction is the first step in pyrimidine biosynthesis. UTP and CTP, the end products of the pyrimidine synthesis...
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Actin Polymerization and Cell Motility01:13

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Actin is a family of globular proteins that are highly abundant in eukaryotic cells. It makes up approximately 1-5% of total cell protein concentration. Actin monomers polymerize to form a complex network of polarized filaments, the actin cytoskeleton, that plays a crucial role in many cellular processes, including cell motility, division, endocytosis, and metastasis of cancer cells.
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Single Nucleotide Polymorphisms-SNPs01:05

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A single nucleotide polymorphism or SNP is a single nucleotide variation at a specific genomic position in a large population. It is the most prevalent type of sequence variation found in the human genome. Point mutations that occur in more than 1% of the population qualify as SNPs. These are present once every 1000 nucleotides on an average in the human genome. Replacement of a purine with another purine (A/G) or a pyrimidine with another pyrimidine (C/T) is known as a transition. In contrast,...
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Actin is a highly conserved cytoskeletal protein found abundantly in eukaryotic cells. It constitutes 10% weight of the total cellular protein in muscle cells, while in non-muscle cells, it is lower and makes up around 1–5 percent of the total cell protein. Actin found in the unicellular amoebae and complex multicellular animals is around 80% similar, demonstrating their conservation over a billion years of evolution.  Actin coding genes are conserved within species and across...
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Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
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相关实验视频

Updated: Sep 10, 2025

A Method to Study the C924T Polymorphism of the Thromboxane A2 Receptor Gene
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ACTN3 R577X (rs1815739) 多形态和运动员状态:额外的病例控制协会研究和元分析

Ameni Chelly1, Amal Bouzid1,2, Ines Kammoun3

  • 1Laboratory of Molecular and Cellular Screening Processes, Centre of Biotechnology of Sfax, University of Sfax, Sfax, Tunisia.

Journal of strength and conditioning research
|August 22, 2025
PubMed
概括
此摘要是机器生成的。

ACTN3 R577X基因变体 (rs1815739) 与耐力无关,但与较低的功率和混合的运动表现有关. 突尼斯的CC基因型运动员表现出更好的动力能力.

关键词:
其他国家一个基因工作表现发电量

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Impact of High-intensity Interval Exercise and Moderate-Intensity Continuous Exercise on the Cardiac Troponin T Level at an Early Stage of Training
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科学领域:

  • 运动科学
  • 人类遗传学
  • 运动生理学

背景情况:

  • 阿尔法-行为素-3 (ACTN3) R577X多态性 (rs1815739) 与运动表现有关,但研究结果不一致.
  • 之前的研究表明ACTN3基因型与力量/耐力能力之间存在关联,但缺乏确的证据.
  • 关于北非运动员,特别是突尼斯人的ACTN3 R577X多态性的遗传数据仍未确定.

研究的目的:

  • 对ACTN3 R577X多态与运动状态之间的关联进行元分析.
  • 调查ACTN3 R577X多态与突尼斯运动员的运动表现的关系.
  • 澄清ACTN3 R577X在功率,混合和耐力性能方面的作用.

主要方法:

  • 使用PubMed,Web of Science和Scopus的数据对90项符合条件的研究 (16,439名运动员,36,349名对照) 进行了全面的元分析.
  • 对49名突尼斯运动员 (32名权力运动员,17名混合运动员) 和49名对照运动员进行了病例对照相关研究.
  • 用聚合酶链反应-限制片长多态化 (PCR-RFLP) 分析进行基因定型.

主要成果:

  • 在元分析中,ACTN3 rs1815739多态性和耐力性能之间没有显著的关联 (OR = 0. 95; 95% CI [0. 86-1. 04]).
  • 具有T等位基因的运动员与较低的功率 (OR = 0. 71; 95% CI [0. 65- 0. 79]) 和混合性能 (OR = 0. 95; 95% CI [0. 87-1. 02]) 有关.
  • 突尼斯的CC基因型运动员表现出更高的优异功率 (OR=0.71,95%CI[0.5353-0.9373]).

结论:

  • 这项研究提供了进一步的证据支持ACTN3 rs1815739多态和功率性能之间的关联.
  • 这些发现突出了ACTN3 R577X多态性在力量和混合赛事运动员的差异化中的潜在作用.
  • 这项研究首次确定了ACTN3 rs1815739多态与突尼斯北非运动员的力量表现之间的联系.