Figure 7
Kinetics and binding-affinity analysis of ACE2 with individual mutations found in the SARS-CoV-2 β VOC spike RBD. Biolayer interferometry analysis using ACE2 captured on the surface of an Ni–NTA sensor, as described in Fig. 2. Increasing concentrations of RBD mutants K417N, E484K and N501Y were exposed to ACE2 in 20 mM HEPES pH 7.4, 150 mM NaCl. Red, experimental data; black, fitting of the experimental data to a 1:1 Langmuir model. |