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. 2021 Jan 14;7:594439. doi: 10.3389/fmed.2020.594439

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Copyright © 2021 Cueno and Imai.

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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Putative structural patterns among the monomeric human-infecting conronavirus spike protein models. Representative (A) Pattern I based on superimposition of NL63 and SARS2 models, (B) Pattern II based on superimposition of MERS and SARS2 models, and (C) Pattern III based on superimposition of SARS1 and SARS2 models are shown. RMSD scores of the superimposed protein structures are indicated below. Contact maps of (D) 229E and SARS2, (E) OC43 and SARS2, (F) NL63 and SARS2, (G) HKU1 and SARS2, (H) SARS1 and SARS2, and (I) MERS and SARS2 models are shown. Contacts present in both protein structures (black) and present in one of the protein structures [either pink (first protein structure uploaded) or green (second protein structure uploaded: SARS2)] are indicated. Common contact of the protein structures being compared are labeled below.