Production of α-Synuclein Fibrillar-Specific scFv from Inclusion Bodies

Recombinant antibody fragments such as Fab, scFvs, and diabodies against α-syn have become a viable alternative to the conventional full-length antibodies in immunotherapeutic approaches due to their benefits which include smaller size, higher stability, specificity, and affinity. However, the majority of recombinant antibody fragments typically express as inclusion bodies (IBs) in E. coli, which makes their purification incredibly difficult. Here, we describe a method involving a mild solubilizing protocol followed by slow on-column refolding to purify active single-chain variable fragment (scFv-pF) antibody that can recognize the pathogenic α-syn fibrils.