基因团队在CASP15中预测RNA三级结构:基于统计潜力和空间约束的折叠模拟
Eugene F Baulin1, Sunandan Mukherjee1, S Naeim Moafinejad1
1Laboratory of Bioinformatics and Protein Engineering, International Institute of Molecular and Cell Biology in Warsaw, Warsaw, Poland.
Proteins
|August 25, 2023
概括
计算方法准确地预测了核糖核酸 (RNA) 的3D结构和相互作用,证明了工作流的稳定性. 对于非正规的基对和堆叠相互作用,需要进一步改进,以匹配蛋白质结构预测的准确性.
科学领域:
- 计算生物学是一种计算生物学.
- 结构生物学是结构生物学.
- 生物信息学是一种生物信息学.
背景情况:
- 核糖核酸 (RNA) 分子通过它们的序列和相互作用来调节细胞功能.
- 准确预测RNA3D结构和分子相互作用对于理解生物作用和设计新的RNA功能至关重要.
研究的目的:
- 在CASP15实验中评估用于预测RNA3D结构和复合物的计算工作流.
- 评估RNA结构预测方法的稳定性并确定需要改进的领域.
主要方法:
- 使用了一套内部开发的方法:MeSSPredRNA,PARNASSUS,ModeRNA,SimRNA和QRNAS.
- 测试了工作流在对CASP15目标预测RNA3D结构方面的性能.
主要成果:
- 计算工作流获得了高分,在预测接近目标结构的可接受质量的RNA 3D结构方面表现出了强度.
- 观察到预测质量的显著差异,表明与蛋白质结构预测相比还有改进的余地.
结论:
- 开发的工作流显示了RNA3D结构和复杂建模的前景.
- 未来的工作重点是提高堆叠相互作用和非正规基数对的预测,以提高准确性.
相关概念视频
Protein Organization
Overview
Protein Folding
Overview
Protein Folding
Overview
Protein Folding Quality Check in the RER
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...
Protein Organization
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.
Protein Folding
Proteins are chains of amino acids linked together by peptide bonds. Upon synthesis, a protein folds into a three-dimensional conformation, critical to its biological function. Interactions between its constituent amino acids guide protein folding, and hence the protein structure is primarily dependent on its amino acid sequence.
Protein Structure Is Critical to Its Biological Function
Proteins perform a wide range of biological functions such as catalyzing chemical reactions, providing...
Protein Structure Is Critical to Its Biological Function
Proteins perform a wide range of biological functions such as catalyzing chemical reactions, providing...


