Figure 4
Phage immunoassay of the first selection against streptavidin, rounds 0 – 3. Circle: Hyperphage Fab-p3, square: VCS-M13 Fab-p3, pentagon: Hyper > VCS Fab-p3, triangle: Fab-p3Δ, star: ScFv-p3Δ and diamond: Fab-p9. 1 × 109 rcfu phages were applied on STR and BSA wells and revealed by europium-labeled anti-phage antibody. The data is shown as the STR/BSA-signal ratio (signal-to-background, S/B) for each sample with the mean and standard deviation of three intra-assay replicas.