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. 2021 Jul 15;12:698365. doi: 10.3389/fmicb.2021.698365

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Copyright © 2021 Tsai, Lee and Tseng.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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The molecular interactions of SARS-CoV-2 RBD variants identified from pandemic isolates. (A) The compared intermolecular interactions of K417 (light cyan stick) and its variant N417 (red stick) in the complex of RBD–MR17. (B) The overlapped view of intermolecular interactions of K417 (light cyan stick) and its variant N417 (red stick) in the complex of RBD–MR17. (C) The compared intermolecular interactions of L452 (light orange stick) and its variant R452 (red stick) in the complex of RBD–SR4. (D) The overlapped view of intermolecular interactions of L452 (light gray stick) and its variant R452 (red stick) in the complex of RBD–H11-D4. (E) The compared intermolecular interactions of E484 (light gray stick) and its variant K484 (red stick) in the complex of RBD–H11-D4. (F) The overlapped view of intermolecular interactions of E484 (light pink stick) and its variant K484 (red stick) in the complex of RBD–VH1-2-15. (G) The intermolecular interactions of E484 (light cyan stick) and its variant K484 (red stick) in the complex of RBD–MR17. (H) The intermolecular interactions of E484 (light green stick) and its variant K484 (red stick) in the complex of RBD–P2B-2F6. (I) The compared intermolecular interactions of F490 (light gray stick) and its variant S490 (red stick) in the complex of H11–D4. (J) The overlapped view of intermolecular interactions of F490 (light pink stick) and its variant S490 (red stick) in the complex of RBD–VH1-2-15. (K) The intermolecular interactions of F490 (light cyan stick) and its variant S490 (red stick) in the complex of RBD–MR17. (L) The intermolecular interactions of F490 (light green stick) and its variant S490 (red stick) in the complex of RBD–P2B-2F6. (M) The intermolecular interactions of F490 (light orange stick) and its variant S490 (red stick) in the complex of RBD–SR4. (N) The intermolecular interactions of S494 (light gray stick) and its variant P494 (red stick) in the complex of RBD–H11-D4. (O) The intermolecular interactions of N501 (light purple stick) in the complex of RBD–ACE2. (P) The intermolecular interactions of Y501 (red stick) in the complex of RBD–ACE2. In all panels, proteins are shown in ribbons and the molecular interactions are presented as dash lines.