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. 2021 Sep 7;10(9):880. doi: 10.3390/biology10090880

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© 2021 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Protein–protein docking representation of hACE2 and RBD Alpha complexes. (A) The complex’s binding interface; (B) The amino acid’s binding interaction; and (C) The interaction representation, which includes hydrogen (), salt bridges (), and non-bonded () interactions. Chain A represents hACE2 and chain B represents RBD Alpha. Residue colors: positive (blue): H,K,R; negative (red): D,E; neutral (green): S,T,N,Q; aliphatic (grey): A,V,L,I,M; aromatic (purple): F,Y,W; Pro & Gly (orange): P,G.

Inline graphic — Protein–protein docking representation of hACE2 and RBD Alpha complexes. (A) The complex’s binding interface; (B) The amino acid’s binding interaction; and (C) The interaction representation, which includes hydrogen (), salt bridges (), and non-bonded () interactions. Chain A represents hACE2 and chain B represents RBD Alpha. Residue colors: positive (blue): H,K,R; negative (red): D,E; neutral (green): S,T,N,Q; aliphatic (grey): A,V,L,I,M; aromatic (purple): F,Y,W; Pro & Gly (orange): P,G.