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相关概念视频

Protein Complex Assembly02:41

Protein Complex Assembly

10.5K
Proteins can form homomeric complexes with another unit of the same protein or heteromeric complexes with different types.  Most protein complexes self-assemble spontaneously via ordered pathways, while some proteins need assembly factors that guide their proper assembly. Despite the crowded intracellular environment, proteins usually interact with their correct partners and form functional complexes.
Many viruses self-assemble into a fully functional unit using the infected host cell to...
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Protein Complexes with Interchangeable Parts01:57

Protein Complexes with Interchangeable Parts

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Protein Folding Quality Check in the RER01:29

Protein Folding Quality Check in the RER

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ER is the primary site for the maturation and folding of soluble and transmembrane secretory proteins. The calnexin cycle is a specific chaperone system that folds and assesses the confirmation of N-glycosylated proteins before they can exit the ER lumen. The primary players of this quality check pipeline are the lectins, ER-resident chaperones, and a glucosyl transferase enzyme. In case the calnexin system in the lumen fails to salvage a misfolded protein, it is transported to the cytoplasm...
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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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Genome Annotation and Assembly03:36

Genome Annotation and Assembly

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The genome refers to all of the genetic material in an organism. It can range from a few million base pairs in microbial cells to several billion base pairs in many eukaryotic organisms. Genome assembly refers to the process of taking the DNA sequencing data and putting it all back together in a correct order to create a close representation of the original genome. This is followed by the identification of functional elements on the newly assembled genome, a process called genome annotation.
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Oligosaccharide Assembly01:24

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Protein glycosylation starts in the ER lumen and continues in the Golgi apparatus. Glycosyltransferases catalyze the addition of sugar molecules or glycosylation of proteins. Usually, these enzymes add sugars to the hydroxyl groups of selected serine or threonine residues to form O-linked glycans or the amino groups of asparagine residues to form N-linked glycans. Different positions on the same polypeptide chain can contain differently linked glycans.
Multiple sugar molecules that may or may...
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相关实验视频

Updated: May 22, 2025

Protein WISDOM: A Workbench for In silico De novo Design of BioMolecules
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在CAPRI 47-55中使用LZerD和深度学习进行整合性蛋白质组装.

Charles Christoffer1,2, Yuki Kagaya3, Jacob Verburgt3

  • 1Department of Computer Science, Purdue University, West Lafayette, Indiana, USA.

Proteins
|March 17, 2025
PubMed
概括
此摘要是机器生成的。

我们的团队在CAPRI第47-55轮期间在蛋白质复合体预测方面取得了最佳表现,成功地使用集成的经典和深度学习管道建模了八个接口. 这突显了我们在结构生物学中的先进计算方法的有效性.

关键词:
卡普里 (CAPRI) 公司较低的德国.蛋白质复合体 蛋白质复合体蛋白质对接的对接方式蛋白质结构预测 蛋白质结构预测蛋白质蛋白质相互作用

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科学领域:

  • 结构生物学 结构生物学
  • 计算生物学 计算生物学
  • 生物物理学的生物物理.

背景情况:

  • 蛋白质复合体预测对于理解生物功能至关重要.
  • CAPRI (PRedicted互动的批判性评估) 实验对蛋白质结构预测的计算方法进行了基准.
  • 评估和改进蛋白质复杂预测模型是一个持续的挑战.

研究的目的:

  • 在最近的CAPRI轮 (47-55) 中报告我们小组蛋白质复合体预测方法的性能.
  • 评估经典和深度学习方法在蛋白质复合体建模中的整合.
  • 通过案例研究分析我们建模策略的成功和局限性.

主要方法:

  • 已建立的计算管道与新型深度学习模型的整合.
  • 包含文献衍生数据,如测试接口残留物,用于人类群体预测.
  • 通过评分函数的等级聚合,生成模型信心和专家评估来选择模型.

主要成果:

  • 在评估的CAPRI轮中,成功建模了八个蛋白质接口.
  • 在所有模拟接口中实现了最高质量水平,优于其他组.
  • 在两个没有其他小组成功的案例中表现出优异的表现.

结论:

  • 我们的综合经典和深度学习方法对于蛋白质复合体预测非常有效.
  • 多样化的数据源和先进的选择策略的整合提高了预测的准确性.
  • 对建模管道的持续改进,特别是对深度学习的统一,是未来进步的关键.