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相关概念视频

Protein-protein Interfaces02:04

Protein-protein Interfaces

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Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a...
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Conserved Binding Sites01:49

Conserved Binding Sites

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Many proteins’ biological role depends on their interactions with their ligands, small molecules that bind to specific locations on the protein known as ligand-binding sites. Ligand-binding sites are often conserved among homologous proteins as these sites are critical for protein function.
Binding sites are often located in large pockets, and if their location on a protein’s surface is unknown, it can be predicted using various approaches. The energetic method computationally...
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Single-Strand DNA Binding Proteins01:03

Single-Strand DNA Binding Proteins

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For successful DNA replication, the unwinding of double-stranded DNA must be accompanied by stabilization and protection of the separated single strands of the DNA. This crucial task is performed by single-strand DNA-binding (SSB) proteins. They bind to the DNA in a sequence-independent manner, which means that the nitrogenous bases of the DNA need not be present in a specific order for binding of SSB proteins to it. The binding of SSB proteins straightens single-stranded DNA (ssDNA) and makes...
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相关实验视频

Updated: Jan 6, 2026

DNA Sequence Recognition by DNA Primase Using High-Throughput Primase Profiling
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DNA Sequence Recognition by DNA Primase Using High-Throughput Primase Profiling

Published on: October 8, 2019

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将DNA结合蛋白预测剂应用于生物研究中的挑战

Graydon Cowgill1, Steven Anthony Strazza1, Savannah Wilson1

  • 1Department of Biology, University of Mississippi, University, MS 38677, USA.

International journal of molecular sciences
|October 16, 2025
PubMed
概括

计算工具可以预测DNA结合蛋白,但往往会失败. 大多数工具都是基于网络的,但维护不良,不可靠的预测可能会扭曲研究中的生物解释.

关键词:
预测DNA结合的时间这是一种DNA结合蛋白质.突变是一种突变.蛋白质的进化 蛋白质的进化

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Screening for Functional Non-coding Genetic Variants Using Electrophoretic Mobility Shift Assay EMSA and DNA-affinity Precipitation Assay DAPA
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An Optimized Quantitative Pull-Down Analysis of RNA-Binding Proteins Using Short Biotinylated RNA
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An Optimized Quantitative Pull-Down Analysis of RNA-Binding Proteins Using Short Biotinylated RNA

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DNA Sequence Recognition by DNA Primase Using High-Throughput Primase Profiling
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科学领域:

  • 分子生物学分子生物学
  • 生物信息学是一种生物信息学.
  • 基因组学就是基因组学.

背景情况:

  • 结合DNA的蛋白质是基因表达,DNA复制和染色体组织的重要调节者.
  • 许多DNA结合蛋白,特别是在非模型生物或新进化的谱系中,仍然没有特征或缺乏实验验证.
  • 遗传变异可以改变DNA结合蛋白的功能,影响它们的结合能力.

研究的目的:

  • 评估用于识别DNA结合蛋白的计算工具的现实实用性和预测性能.
  • 评估现有的生物信息学工具的可访问性,维护性和可靠性,用于DNA结合蛋白质的预测.

主要方法:

  • 通过使用五个现实世界的案例研究,评估计算工具的可用性和性能.
  • 评估了基于Web的可访问性工具,维护问题 (服务器错误,输入问题,处理时间) 和预测准确性.
  • 将预测得分与实际输出进行比较,并在多种方法中确定了一致错误预测的实例.

主要成果:

  • 大多数评估的工具都是基于网络的,提高了缺乏计算专业知识的研究人员的可访问性.
  • 许多工具的维护不好,导致频繁的服务器连接问题,输入错误和延长处理时间.
  • 在功能工具中,预测得分通常与不正确的输出无关,多个工具经常产生相同的错误预测.

结论:

  • 目前用于预测DNA结合蛋白的计算工具由于维护问题和不准确的预测,对经验生物学研究来说不够可靠.
  • 即使是这些工具中的轻微错误分类也会严重误导生物学解释.
  • 需要进一步开发和严格验证,以提高DNA结合蛋白预测工具的可靠性.