单个蛋白质与单个碳纳米管的特定点击连接:单个分子方法
Mark Freeley1, Harley L Worthy2, Rochelle Ahmed2
1School of Biological and Chemical Sciences, Institute of Bioengineering, and Materials Research Institute, Queen Mary University of London , Mile End Road, London E1 4NS, United Kingdom.
Journal of the American Chemical Society
|November 18, 2017
概括
研究人员使用Click反应精确地将单个蛋白质连接到碳纳米管 (CNT). 这种生物工程方法可以实现直接的蛋白质-纳米管通信,这对于先进的纳米材料至关重要.
科学领域:
- 生物材料科学
- 纳米技术
- 蛋白质工程
背景情况:
- 碳纳米管 (CNT) 具有独特的电子和机械性能.
- 控制蛋白质与纳米材料的附着是具有挑战性的,但对于功能整合至关重要.
- 特定位置的蛋白质固定是理解和利用生物纳米材料接口的关键.
研究的目的:
- 实现单个蛋白质与溶液中的单个碳纳米管 (CNT) 的特定位点合.
- 研究蛋白质附着配置对蛋白质-纳米管通信的影响.
- 为了证明单个分子对CNT的蛋白质固定控制.
主要方法:
- 基因编码的绿色光蛋白 (GFP).
- 使用正交点击反应进行共价蛋白-CNT结合.
- 使用原子力显微镜 (AFM) 和光分析进行单分子表征.
主要成果:
- 成功地证明了单个GFP分子与CNT端的特定合.
- 显示了蛋白质功能中心与 CNT 之间的距离.
- 证实优化的附着点对于直接的蛋白质纳米管通信至关重要.
结论:
- 通过单分子精度,可以在CNT上实现特定位置的蛋白质固定.
- 生物工程最优的附着部位增强了蛋白质和CNT之间的直接通信.
- 这种方法为设计具有定制功能的先进生物纳米材料提供了基础.
相关概念视频
Noncovalent Attractions in Biomolecules
Noncovalent attractions are associations within and between molecules that influence the shape and structural stability of complexes. These interactions differ from covalent bonding in that they do not involve sharing of electrons.
Four types of noncovalent interactions are hydrogen bonds, van der Waals forces, ionic bonds, and hydrophobic interactions.
Hydrogen bonding results from the electrostatic attraction of a hydrogen atom covalently bonded to a strong-electronegative atom like oxygen,...
Four types of noncovalent interactions are hydrogen bonds, van der Waals forces, ionic bonds, and hydrophobic interactions.
Hydrogen bonding results from the electrostatic attraction of a hydrogen atom covalently bonded to a strong-electronegative atom like oxygen,...
Protein 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...
Protein 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...
Protein 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...
Protein 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...
Noncovalent Attractions in Biomolecules
Noncovalent attractions are associations within and between molecules that influence the shape and structural stability of complexes. These interactions differ from covalent bonding in that they do not involve sharing of electrons.
Four types of noncovalent interactions are hydrogen bonds, van der Waals forces, ionic bonds, and hydrophobic interactions.
Hydrogen bonding results from the electrostatic attraction of a hydrogen atom covalently bonded to a strong-electronegative atom like oxygen,...
Four types of noncovalent interactions are hydrogen bonds, van der Waals forces, ionic bonds, and hydrophobic interactions.
Hydrogen bonding results from the electrostatic attraction of a hydrogen atom covalently bonded to a strong-electronegative atom like oxygen,...


