id author title date pages extension mime words sentences flesch summary cache txt cord-267744-asjvf123 Lee, Yu-Ching Chicken single-chain variable fragments against the SARS-CoV spike protein 2007-07-23 .txt text/plain 4057 212 52 Following the immunization of chickens with these recombinant spike proteins, two single-chain variable fragment (scFv) antibody libraries were established with short or long linkers to contain 5 × 10(7) and 9 × 10(6) transformants, respectively. In a comparison of nucleotide sequences with the chicken germline gene, we found that all clones varied in the complementarity-determining regions, that two scFv antibodies reacted significantly with SARS-CoV-infected Vero cells, and that those two specific scFv antibodies recognized the same region of the spike protein spanning amino acid residues 750–1000. The current study aimed to show that monoclonal IgY scFv antibodies which bind specifically to the S protein and SARS-CoV-infected Vero cells can be isolated from chickens immunized with Escherichia coli-derived S proteins. Cellular lysates containing single-chain variable fragment (scFv) antibodies from various Ssc (A) and Lsc (B) library clones were examined for their binding to SARS-CoV-infected cell lysates using a commercially available kit. ./cache/cord-267744-asjvf123.txt ./txt/cord-267744-asjvf123.txt