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相关概念视频

Globular and Fibrous Proteins02:21

Globular and Fibrous Proteins

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Many proteins can be classified into two distinct subtypes - globular or fibrous. These two types differ in their shapes and solubilities.
Globular proteins are also known as spheroproteins and typically are approximately round in shape. They contain a mix of amino acid types and contain differing sequences in their primary structures. Globular proteins have many different functions, such as enzymes, cellular messengers, and molecular transporters. These roles often require the proteins to be...
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Conservation of Protein Domains Over Different Proteins02:26

Conservation of Protein Domains Over Different Proteins

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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...
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Conservation of Protein Domains02:26

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Protein and Protein Structures02:15

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Protein Complexes with Interchangeable Parts01:57

Protein Complexes with Interchangeable Parts

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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...
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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....
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相关实验视频

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An Integrated Approach for Microprotein Identification and Sequence Analysis
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AlphaSync是一种增强的AlphaFold结构数据库,与UniProt同步.

Benjamin Lang1, Bálint Mészáros2, Besian I Sejdiu2

  • 1Center of Excellence for Data-Driven Discovery, Department of Structural Biology, St. Jude Children's Research Hospital, Memphis, TN, USA. benjamin.lang@cantab.net.

Nature structural & molecular biology
|November 11, 2025
PubMed
概括
此摘要是机器生成的。

AlphaSync提供与UniProt同步的更新的蛋白质结构模型,增强生物研究. 该资源提供了全面的蛋白质组覆盖范围和大规模蛋白质研究的详细注释.

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科学领域:

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

背景情况:

  • 准确的蛋白质结构预测对于生物学理解和生物医学研究至关重要.
  • 保持蛋白质结构模型与不断变化的序列数据库同步是一个重大挑战.

研究的目的:

  • 介绍AlphaSync,这是一个补充AlphaFold蛋白质结构数据库的资源.
  • 为提供最新的UniProt同步蛋白质结构模型和注释.

主要方法:

  • 开发了AlphaSync (alphasync.stjude.org) 来与UniProt.org同步蛋白质结构模型.
  • 为925种物种的更新蛋白质和异构体生成了260万个结构模型.
  • 实现了42个关键物种的完整蛋白质组覆盖.

主要成果:

  • AlphaSync提供260万个UniProt同步结构模型,包括对40016个更新的蛋白质的预测.
  • 为42种物种提供完整,最新的蛋白质组覆盖,包括人类和病原体.
  • 包括残留级别的注释 (溶剂可访问性,混乱) 和超过47亿个原子级别的非共价接触.

结论:

  • AlphaSync促进了蛋白质结构-功能关系研究和变异评估.
  • 通过最新的模型和注释,使大规模和详细的蛋白质研究成为可能.
  • 支持机器学习任务,如蛋白质设计,具有全面的数据.