集成定堆和层次动力学:MSICDA驱动的CREBBPodomain抑制
Xinpei Wang1, Xu Chen1, Zhidong Chen1
1School of Pharmaceutical Sciences, Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China.
Journal of chemical information and modeling
|June 12, 2024
概括
我们开发了一种新的计算方法,即多尺度整合性结构动力学评估 (MSICDA),用于设计接 (SP). 这种方法确定了强大的SPs,DA#430和DA#99409,与现有的抑制剂相比,对CREBBP-BrD的疗效有所改善.
科学领域:
- 计算化学和药物发现.
- 分子建模和模拟.
- 类治疗药物.类治疗药物.
背景情况:
- 由于数据限制,当前的循环设计方法与非正规氨基酸和循环化作斗争.
- 针对蛋白质与蛋白质的相互作用,例如CREBBP原蛋白,对于治疗开发至关重要.
研究的目的:
- 为设计针对CREBBP原体 (CREBBP-BrD) 的聚合 (SPs) 开发一个综合框架.
- 为SP设计和优化引入和验证多尺度整合性结构动态评估 (MSICDA) 战略.
主要方法:
- 在MSICDA策略中采用定堆和分层分子动力学.
- 进行了超过150万个SP的虚拟选,随后进行了广泛的分子动力学模拟 (154.54μs).
- 对稳定性,结合性和亲和性进行评估的-蛋白相互作用.
主要成果:
- 确定了两个主要的SP候选物,DA#430和DA#99409,具有增强的稳定性,优化结合,以及对CREBBP-BrD的高亲和力.
- 在无细胞试验中,DA#430和DA#99409的功效比SGC-CBP30高2到12倍.
- SP候选细胞对癌细胞的选择性高于正常细胞,并且与 (+) - JQ-1 的协同作用.
结论:
- 该MSICDA方法使精确和有效的循环设计,产生候选人优化结合,高亲和力和稳定性.
- MSICDA是一种可泛化和变革性的工具,用于在各种治疗领域发现新的向药物候选药物.
- 开发的合具有针对CREBBP-BrD的显著治疗潜力.
更多相关视频
09:30Analyzing Dynamic Protein Complexes Assembled On and Released From Biolayer Interferometry Biosensor Using Mass Spectrometry and Electron Microscopy
Published on: August 6, 2018
9.4K
10:44Chemical Inactivation of the E3 Ubiquitin Ligase Cereblon by Pomalidomide-based Homo-PROTACs
Published on: May 15, 2019
13.2K
相关概念视频
Assembly of Signaling Complexes
5.7K
Multiprotein signaling complexes are formed in a dynamic process involving protein-protein interactions at the cytoplasmic domain of transmembrane receptors or enzymatic and non-enzymatic proteins associated with the receptor. These complexes ensure the activation and propagation of intracellular signals that regulate cell functions.
Interaction domains in cell signaling
Interaction domains recognize exposed features of their binding partners containing post-translationally modified sequences,...
Interaction domains in cell signaling
Interaction domains recognize exposed features of their binding partners containing post-translationally modified sequences,...
5.7K
Mechanisms of Membrane Domain Formation
3.0K
Different physical properties of lipids and proteins allow them to localize and form distinct islands or domains in the membrane. Some membrane domains are formed due to protein-protein interactions, whereas others are formed due to the presence of specific lipids such as sphingolipids and sterols—for example, large proteins, such as bacteriorhodopsin, aggregate and create distinct domains.
Another mechanism for membrane domain formation involves membrane proteins interacting with...
Another mechanism for membrane domain formation involves membrane proteins interacting with...
3.0K
Covalently Linked Protein Regulators
6.8K
Proteins can undergo many types of post-translational modifications, often in response to changes in their environment. These modifications play an important role in the function and stability of these proteins. Covalently linked molecules include functional groups, such as methyl, acetyl, and phosphate groups, and also small proteins, such as ubiquitin. There are around 200 different types of covalent regulators that have been identified.
These groups modify specific amino acids in a protein....
These groups modify specific amino acids in a protein....
6.8K
Restarting Stalled Replication Forks
5.8K
DNA replication is initiated at sites containing predefined DNA sequences known as origins of replication. DNA is unwound at these sites by the minichromosome maintenance (MCM) helicase and other factors such as Cdc45 and the associated GINS complex.The unwound single strands are protected by replication protein A (RPA) until DNA polymerase starts synthesizing DNA at the 5’ end of the strand in the same direction as the replication fork. To prevent the replication fork from falling apart,...
5.8K
Single-Strand DNA Binding Proteins
14.1K
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...
14.1K
