Figure 6
Direct interactions between fluorescently labeled streptavidins and biotin or labeled C-terminal deletion mutants and ligands measured by microscale thermophoresis (MST). (a) Dose–response curves of streptavidin C1 (green), streptavidin C2 (red) or streptavidin (blue) and the biotin molecule. (b) Dose–response curves of ΔC1 + C-Lid_ECP (green), ΔC2 + C-Lid_ECP (blue), ΔC1 + ECP (orange) and ΔC2 + ECP (red). The amino-acid sequences of C-Lid_ECP and ECP were designed as –169SAADVEKARQLGVTSANPPASDGE191– and –178LGVTSANPPASDGE191–, respectively. |