抗体
表征(材料科学)
生物
计算生物学
选择(遗传算法)
免疫学
计算机科学
人工智能
材料科学
纳米技术
作者
Doreen Könning,Stefan Zielonka,Anna Kaempffe,Sebastian Jäger,Harald Kolmar,Christian Schröter
标识
DOI:10.1007/978-1-4939-9853-1_11
摘要
The antibody repertoire of cartilaginous fish comprises an additional heavy-chain-only antibody isotype that is referred to as IgNAR (immunoglobulin novel antigen receptor). Its antigen-binding site consists of one single domain (vNAR) that is reportedly able to engage a respective antigen with affinities similar to those achieved by conventional antibodies. While vNAR domains offer a reduced size, which is often favorable for applications in a therapeutic as well as a biotechnological setup, they also exhibit a high physicochemical stability. Together with their ability to target difficult-to-address antigens such as virus particles or toxins, these shark-derived antibody domains seem to be predestined as tools for biotechnological and diagnostic applications. In the following chapter, we will describe the isolation of anti-idiotypic vNAR domains targeting monoclonal antibody paratopes from semi-synthetic, yeast-displayed libraries. Anti-idiotypic vNAR variants could be employed for the characterization of antibody-based therapeutics (such as antibody-drug conjugates) or as positive controls in immunogenicity assays. Peculiarly, when using semi-synthetic vNAR libraries, we found that it is not necessary to deplete the libraries using unrelated antibody targets, which enables a fast and facile screening procedure that exclusively delivers anti-idiotypic binders.
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