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Comparison of the sidechain conformations near the binding site of MU-UNMC-2 in Wuhan-Hu-1 and B.1.351. Cyan and green carbons represent the S-RBD and ACE2 residues of Wuhan-Hu-1, whereas yellow and gray carbons represent the sidechain conformations of S-RBD and ACE2 in the B.1.351 variant. For clarity, the MU-UNMC-2 compound has been removed.
