开发一种免疫球蛋白重链变区 (VH) 单域抗体 (sdAb) 针对卡尔塞克斯特林 (CSQ) 和其应用
Sun Lee1,2, Seoryeong Park1,3, Hyunji Yang1,4
1Department of Biochemistry and Molecular Biology, Seoul National University School of Medicine, Seoul 03080, Republic of Korea.
Antibodies (Basel, Switzerland)
|September 22, 2025
概括
研究人员开发了针对calsequestrin (CSQ) 的单域抗体 (sdAbs),以改善CSQ标记蛋白的检测. 这种进步增强了CSQ.
科学领域:
- 生物技术是生物技术.
- 免疫学 免疫学 免疫学
- 蛋白质工程是指蛋白质工程.
背景情况:
- 基斯特林 (CSQ) 是一种可溶性结合蛋白,用于复合蛋白表达和净化的融合标签.
- 现有的可靠抗CSQ检测试剂的局限性阻碍了CSQ标记蛋白在研究中的广泛应用.
研究的目的:
- 开发针对CSQ的新型单域抗体 (sdAbs),用于多功能免疫测试和基于细胞的检测.
- 为了验证这些sdAbs作为CSQ融合蛋白的可靠检测试剂的实用性.
主要方法:
- 体显示技术利用的VH库来选择CSQ特定的sdAb克隆.
- 在大肠杆菌中,选择的VH sdAb克隆被表达为VH-人类卡帕光链常数区域 (VH-Cκ) 融合蛋白.
- 对PE06克隆与HRP和Alexa Fluor 647的表征和结合,用于测试开发.
主要成果:
- PE06 VH-Cκ融合蛋白对CSQ标记的蛋白质表现出特定的结合.
- 使用ELISA,免疫阻塞和流细胞计,可以实现CSQ融合蛋白的可靠检测.
- 验证了试剂用于检测表达在大肠杆菌中的CSQ融合蛋白的实用性.
结论:
- 一个特定于CSQ的VH sdAb (PE06) 作为CSQ标记蛋白质的多功能检测工具.
- 这一发展扩大了CSQ作为蛋白质融合标签的应用范围.
- 能够创建用于研究和测试系统的新型重组抗体-CSQ融合.
相关概念视频
01:31Hybridoma Technology
17.3K
Hybridoma technology is used for the large-scale production of monoclonal antibodies. Monoclonal antibodies bind to only a single antigenic determinant or epitope. Such antibodies are used in research, diagnostics, and disease therapy. The hybridoma technology established in 1975 by Georges Köhler and Cesar Milstein was awarded the Nobel Prize in Medicine in 1984 for revolutionizing research and therapy.
Hybridoma Selection
Commonly used fusion techniques — electroporation,...
Hybridoma Selection
Commonly used fusion techniques — electroporation,...
17.3K
01:10Antibody Structure
65.3K
Overview
Antibodies, also known as immunoglobulins (Ig), are essential players of the adaptive immune system. These antigen-binding proteins are produced by B cells and make up 20 percent of the total blood plasma by weight. In mammals, antibodies fall into five different classes, which each elicits a different biological response upon antigen binding.
The Y-Shaped Structure of Antibodies Consists of Four Polypeptide Chains
Antibodies consist of four polypeptide chains: two identical heavy...
Antibodies, also known as immunoglobulins (Ig), are essential players of the adaptive immune system. These antigen-binding proteins are produced by B cells and make up 20 percent of the total blood plasma by weight. In mammals, antibodies fall into five different classes, which each elicits a different biological response upon antigen binding.
The Y-Shaped Structure of Antibodies Consists of Four Polypeptide Chains
Antibodies consist of four polypeptide chains: two identical heavy...
65.3K