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. 2021 Dec 3;102:108424. doi: 10.1016/j.intimp.2021.108424

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Fig. 3 — (A) Potential of mean force for the binding of wild-type (black), N501Y (red), and E484K (blue) RBD to ACE2. (B) Color-coded representation of interfacial interactions involved in ACE2 recognition by the wild-type and mutant spike RBDs. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)