在现场通过通过工程跨物种联盟进行中介的多蛋白组合
Hao Wang1, Jiajia Kang2, Hui Gao3
1Department of Experiment and Research, South China Hospital, Medical School, Shenzhen University, Shenzhen, China.
Frontiers in bioengineering and biotechnology
|May 12, 2025
概括
这项研究引入了一种新的微生物联盟平台,用于in situ蛋白质拼接,使可扩展的功能性蛋白质的单合成能够在没有体外净化的情况下进行. 这一突破推动了生物制造和生物材料设计的进步.
科学领域:
- 合成生物学 合成生物学
- 蛋白质工程是指蛋白质工程.
- 微生物工程 微生物工程
背景情况:
- 整蛋白是蛋白质域,能够自我切割和对侧蛋白质序列的结合.
- 目前的蛋白质拼接方法通常需要复杂的体外程序,限制了可扩展性和效率.
研究的目的:
- 开发一个可编程的微生物联盟平台,用于in situ蛋白质拼接.
- 为了实现可扩展的功能性蛋白质的一合成,使用分裂整体技术.
- 为了证明平台在逻辑计算和抗生素耐药性工程等应用中的实用性.
主要方法:
- 通过使用 ePop 自溶系统来释放与蛋白质融合的蛋白质碎片的工程大肠杆菌.
- 工程设计的Pichia pastoris用于分泌补充蛋白质域.
- 集成定数感应控制和真核细胞分泌途径用于细胞外蛋白质组装.
- 在微生物联盟中分离中介蛋白质结合.
主要成果:
- 通过工程微生物联盟实现了成功的现场蛋白质拼接.
- 证明了多种功能性蛋白质的单一合成,绕过了体外净化.
- 在逻辑计算和抗生素耐药性工程中验证了平台的多功能性.
结论:
- 开发的平台提供了一种可扩展和高效的蛋白质合成方法,通过in situ剪接.
- 这种方法对自适应生物制造和对上下文感知生物材料的设计具有重大潜力.
- 这项研究开创了一个可编程系统,用于微生物联盟中的复杂蛋白质组装.
相关概念视频
02:41Protein Complex Assembly
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...
Many viruses self-assemble into a fully functional unit using the infected host cell to...
02:04Protein-protein Interfaces
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 polypeptide...
01:57Protein Complexes with Interchangeable Parts
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 to...
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 to...
02:41Protein Complex Assembly
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...
Many viruses self-assemble into a fully functional unit using the infected host cell to...
01:57Protein Complexes with Interchangeable Parts
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 to...
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 to...
01:30Assembly of Signaling Complexes
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,...