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相关概念视频

Intrinsically Disordered Proteins02:18

Intrinsically Disordered Proteins

17.7K
Intrinsically disordered proteins are a group of proteins that do not fold into specific three-dimensional structures. Their structural flexibility allows them to complement ordered proteins to perform functions that are inaccessible to rigid structures. They are more common in eukaryotes than prokaryotes and may either be exclusively intrinsically disordered or hybrid proteins, consisting of a mix of ordered and disordered regions. The absence of a rigid structure in these proteins can be...
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Protein Complexes with Interchangeable Parts01:57

Protein Complexes with Interchangeable Parts

2.5K
Groups of proteins may form a complex where each protein in this complex has a different role in the overall execution of the complex’s function. Often some of the proteins in the complex can be replaced by a closely related variant to give a complex that contains many of the same components yet is functionally distinct.
The SCF ubiquitin ligase is a protein complex of five individual proteins. This complex attaches ubiquitin to other target proteins to mark them for degradation. In order...
2.5K
Protein Organization01:24

Protein Organization

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Proteins are polymers of amino acid residues. They are versatile and responsible for different cellular functions, including DNA replication, molecular transport, catalysis, and structural support. Proteins have a hierarchical structure comprising at least three levels of organization: primary, secondary, and tertiary structure. Some large proteins have a quaternary structure where individual protein subunits are linked together.
The primary structure of a protein is its amino acid sequence....
6.3K
Protein-protein Interfaces02:04

Protein-protein Interfaces

12.5K
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...
12.5K
Conservation of Protein Domains Over Different Proteins02:26

Conservation of Protein Domains Over Different Proteins

10.8K
Protein domains are small structurally independent units that are part of a single amino acid chain.  Although these domains are often structurally independent, they may rely on synergistic effects to perform their functions as part of a larger protein. Protein domains may be conserved within the same organism, as well as across different organisms.
A limited set of protein domains often duplicate and recombine during evolution. These domains can be organized in different combinations to...
10.8K
Protein Networks02:26

Protein Networks

3.9K
An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions.
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
3.9K

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相关实验视频

Updated: Jun 9, 2025

Optimization of Synthetic Proteins: Identification of Interpositional Dependencies Indicating Structurally and/or Functionally Linked Residues
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2025年的MOBIDB:整合固有无序蛋白质的集合性质和功能注释.

Damiano Piovesan1, Alessio Del Conte1, Mahta Mehdiabadi1

  • 1Department of Biomedical Sciences, University of Padova, Padua 35131, Italy.

Nucleic acids research
|October 29, 2024
PubMed
概括

现在,MobiDB提供了增强的蛋白质疾病信息,以更快的预测和改进的数据访问. 这一更新为研究人员提供了对内在疾病功能和结构细节的更深入的见解.

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相关实验视频

Last Updated: Jun 9, 2025

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科学领域:

  • 生物信息学是一种生物信息学.
  • 结构生物学 结构生物学
  • 计算生物学 计算生物学

背景情况:

  • 内在蛋白质障碍对细胞功能至关重要.
  • 现有的数据库需要更新,以提供全面的混乱信息.
  • 摩比数据库 (MobiDB) 汇总了蛋白质疾病的结构和功能数据.

研究的目的:

  • 详细介绍了MobiDB数据库最近的改进.
  • 为了提高数据的可访问性,捕获和文档.
  • 提供关于内在障碍的新功能知识.

主要方法:

  • 更新了所有用于数据处理的底层管道模块.
  • 增强速度和结构细节的预测模块 (扩展/紧).
  • 改进了PDB组件以处理大型冷EM结构.
  • 重新设计的入门页面和重新实现的图形模块.
  • 标准化的注释来源使用ECO术语.
  • 从DisProt使用序列相似性和嵌入式传播疾病功能.

主要成果:

  • 预测模块速度快十倍,可以区分扩展/紧无序区域.
  • 由于增强的冷EM结构处理,处理的PDB条目数量增加.
  • 改进了用户界面,重新设计了页面和更快的图形染.
  • 优化服务器,以实现高效的批量下载.
  • 标准化的注释来源和丰富的障碍功能数据.

结论:

  • MobiDB提供了一个更直观的界面,并扩展了对内在障碍的功能知识.
  • 更新后的资源有助于对失序蛋白质进行更深入的结构和功能分析.
  • 增强的数据处理和可访问性有利于更广泛的研究界.