Fig. 4: Plasticity of S1´ is revealed by fragment Z369936976 (×0397).
From: Crystallographic and electrophilic fragment screening of the SARS-CoV-2 main protease
Comparing the electrostatic surfaces of Z1129283193 (×0107) a The most commonly observed conformation, with that of Z369936976 (x0397). b How the shape of S1 and S1´ can change. c Sidechain movement of catalytic residues Cys145 and His41 upon binding of Z369936976 (×0397, magenta) compared to Z1129283193 (×0197, grey).
