相关实验视频
Updated: Feb 8, 2026

12:15
Generation of Monoclonal Antibodies Against Natural Products
Published on: April 6, 2019
11.6K
一种综合性NMR方法用于评估与单克隆抗体的链接器-有效载荷结合
Veronica Ghini1, Sofia Siciliano2, Leonardo Querci1
1Department of Chemistry, University of Florence, via Della Lastruccia 3, 50019 Sesto Fiorentino, Florence, Italy.
Bioconjugate chemistry
|February 6, 2026
概括
我们开发了一种新型的NMR方法,以表征抗体-药物合物 (ADC),而不会破坏它们. 这种技术提供了对抗体结构和药物有效载荷特性的洞察,推进了ADC分析.
科学领域:
- 生物制药学分析分析
- 结构生物学是结构生物学.
- 核磁共振 (NMR) 频谱学是指核磁共振 (NMR) 的光谱学.
背景情况:
- 抗体-药物结合物 (ADC) 将单克隆抗体 (mAbs) 与小分子药物相结合,用于向治疗.
- 目前的ADC表征通常使用破坏性方法,如质谱法,限制在生理条件下的分析.
- 了解ADC结构和药物有效载荷特性对于治疗开发至关重要.
研究的目的:
- 为全面的ADC表征引入一种非破坏性的NMR方法.
- 评估mAbs和ADCs的更高层次结构 (HOS).
- 为了确定ADC中链接器-有效载荷片段的属性.
主要方法:
- 使用了H-HMQC ALSOFAST-HMQC和T-H CPMG NMR实验的组合.
- 将NMR方法应用于Trastuzumab (a mAb) 和Remdesivir衍生的链接器-有效载荷模型.
- 专注于获取结构指纹和高层结构 (HOS) 信息.
主要成果:
- 核磁共振方法成功地为mAb和ADC提供了结构指纹.
- 获得了关于抗体组件的高阶结构 (HOS) 的信息.
- 使用NMR技术阐明了绑定链接器-有效载荷片段的特性.
结论:
- 提出的NMR方法提供了一种非破坏性的方法来表征ADCs.
- 这种技术为ADCs的抗体和药物有效载荷组件提供了宝贵的见解.
- 该方法推进了生物制药研究和开发的分析工具包.
相关概念视频
¹H NMR Signal Integration: Overview
3.6K
The intensity of a signal, which can be represented by the area under the peak, depends on the number of protons contributing to that signal. The area under each peak is shown as a vertical line called an integral, with the integral value listed under it, as seen in the proton NMR spectrum of benzyl acetate. Each integral value is divided by the smallest integral value to obtain the ratio of the number of protons producing each signal. The ratio reveals the relative number of protons and not...
3.6K
Conjugated Proteins
28.9K
Simple proteins and protein complexes contain only amino acids. In contrast, many other proteins, called conjugated proteins, covalently bond with non-protein moieties.
Nucleoproteins are protein complexes that contain nucleic acids, categorized as deoxyribonucleoproteins (DNPs) or ribonucleoproteins (RNPs) respectively. The nucleosome is a typical example of a DNP where nuclear DNA is associated with histone proteins. The major antigen for the Covid-19 virus SARS-CoV is an RNP that is critical...
Nucleoproteins are protein complexes that contain nucleic acids, categorized as deoxyribonucleoproteins (DNPs) or ribonucleoproteins (RNPs) respectively. The nucleosome is a typical example of a DNP where nuclear DNA is associated with histone proteins. The major antigen for the Covid-19 virus SARS-CoV is an RNP that is critical...
28.9K
Conjugated Proteins
3.2K
3.2K
Cytoskeletal Linker Proteins - Plakins
2.9K
Plakins are large proteins with binding domains for microtubules, microfilaments, intermediate filaments, and membrane-associated protein complexes at cell junctions. Plakin functions are evolutionarily conserved and are primarily involved in organizing the different components of the cytoskeleton by crosslinking them to each other and connecting them to the cell-matrix and cell adhesion complexes. They are also known to interact with signal transducers, serve as scaffolds for signaling...
2.9K
Conjugation
2.4K
Conjugation is a form of horizontal gene transfer that primarily occurs in bacteria and some archaea, promoting genetic diversity and adaptation. Bacteria can acquire resistance genes through conjugative plasmids, allowing them to survive antibiotic treatments that would otherwise be lethal. This process involves direct contact between cells through specialized structures such as the sex pilus and is mediated by conjugative plasmids, including the F (fertility) factor.Conjugation requires...
2.4K
Mechanism of Conjugation
1.1K
Bacterial conjugation is a mechanism of horizontal gene transfer that enables the exchange of genetic material between bacterial cells through direct contact. This process is facilitated by a donor cell carrying a conjugative plasmid, which encodes genes necessary for pilus formation, DNA replication, and transfer. The conjugative plasmid plays a central role in initiating and executing the transfer of genetic material.The tra region of the conjugative plasmid encodes proteins responsible for...
1.1K

