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. 2021 Aug 23;26:100714. doi: 10.1016/j.imu.2021.100714

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© 2021 The Authors

Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active.

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Fig. 3 — ACE2 ~ Spike docking studies: Superimposition of ace2 (magenta)- spike (yellow) docked complex with (a) crystal ACE2 (blue)- spike (orange) complex structure (6LZG) and b) with HCQ-ACE2 (green) ~ Spike (blue) docked complex. (For interpretation of the references to color in this figure legend, the reader is referred to the Web version of this article.)