StrIDR:一种具有实验解决结构的蛋白质内在无序区域的数据库
Kartik Majila1, Shruthi Viswanath1
1National Center for Biological Sciences, Tata Institute of Fundamental Research, Bangalore, India 560065.
bioRxiv : the preprint server for biology
|September 10, 2024
概括
StrIDR数据库组织了实验结构中解决的内在无序区域 (IDR) 的蛋白质结构. 本资源有助于理解IDR动态,折叠和相互作用,促进计算研究.
科学领域:
- 生物化学 生物化学
- 结构生物学 结构生物学
- 生物信息学是一种生物信息学.
背景情况:
- 本质上无序的区域 (IDR) 缺乏稳定的结构,存在于动态的集体中.
- 数据库在序列层面广泛注释蛋白质障碍.
- 对IDRs的实验确定结构很少,即使在现有结构中,许多无序的区域仍然未解决.
研究的目的:
- 创建StrIDR,这是一个具有实验解决结构的内在无序区域 (IDR) 的精选数据库.
- 为研究IDR动态,折叠和相互作用提供一个有价值的资源.
- 促进IDR的计算研究,包括分子动力学和机器学习.
主要方法:
- 编制具有经验证实或基于同类学的结构证据的IDR.
- 对于本质上无序的区域来说,已解决的结构数据的组织.
- 开发一个用于访问和下载数据的Web界面.
主要成果:
- 建立了StrIDR数据库,该数据库包含实验解决的内在无序区域 (IDR) 的结构.
- 该数据库提供了对IDRs的构造组合,折叠路径和相互作用机制的洞察.
- StrIDR支持计算分析,例如分子动力学模拟和机器学习方法.
结论:
- StrIDR提供了一个独特的资源,用于探索内在无序区域 (IDR) 的结构和动态特性.
- 该数据库通过将序列级注释与已解决的结构联系起来,增强了对蛋白质乱的研究.
- 在线可以访问StrIDR,可以选择下载单个条目或整个数据集.
相关概念视频
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...
17.7K
Protein Organization
6.3K
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....
The primary structure of a protein is its amino acid sequence....
6.3K
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
Conserved Binding Sites
4.2K
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...
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...
4.2K
X-ray Diffraction of Biological Samples
3.8K
X-ray diffraction or XRD is an analytical tool that utilizes X-rays to study ordered structures such as crystalline organic and inorganic samples, polycrystalline materials, proteins, carbohydrates, and drugs.
According to Bragg's law, when X-rays strike the sample positioned on a stage, the rays are scattered by the electron clouds around the sample atoms. The X-ray diffraction or scattering is caused by constructive interference of the X-ray waves that reflect off the internal...
According to Bragg's law, when X-rays strike the sample positioned on a stage, the rays are scattered by the electron clouds around the sample atoms. The X-ray diffraction or scattering is caused by constructive interference of the X-ray waves that reflect off the internal...
3.8K
Protein Families
15.3K
Protein families are groups of homologous proteins; that is, they have similarities in amino acid sequences and three-dimensional structures. Protein families usually occur because of gene duplication, where an additional copy of a gene is inserted into the genome of an organism. Mutations that change the amino acids but still allow the protein to be properly synthesized, will lead to new protein family members. If these new proteins contain similar amino acids in key...
15.3K


