Extended Data Fig. 4: Surface plasmon resonance sensorgrams.
From: Structure of the SARS-CoV-2 spike receptor-binding domain bound to the ACE2 receptor

Binding curves of immobilized human ACE2 with the SARS-CoV-2 RBD (left) and SARS-CoV RBD (right). Data are shown as different coloured lines and the best fit of the data to a 1:1 binding model is shown in black.