Release Time:2019-11-01  Hits:

Indexed by: Journal Papers

Date of Publication: 2019-07-02

Journal: MOLECULES

Included Journals: SCIE、PubMed

Volume: 24

Issue: 14

Key Words: VHHs; single domain antibodies; amino modification; protein structures; fluorescent

Abstract: The functionalization of VHHs enables their application in almost every aspect of biomedical inquiry. Amino modification remains a common strategy for protein functionalization, though is considered to be inferior to site-specific methods and cause protein property changes. In this paper, four anti-beta 2M VHHs were selected and modified on the amino group by NHS-Fluo. The impacts of amino modification on these VHHs were drastically different, and among all th examples, the modified NB-1 maintained the original stability, bioactivity and homogeneity of unmodified NB-1. Specific recognition of VHHs targeting beta 2M detected by fluorescence imaging explored the possible applications of VHHs. Via this study, we successfully functionalized the anti-beta 2M VHHs through amino modification and the results are able to instruct the simple and fast functionalization of VHHs in biomedical researches.