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. 2021 Apr 12;8:640819. doi: 10.3389/fmolb.2021.640819

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Copyright © 2021 Ullah and Ullah.

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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Interaction between SARS-CoV-2 3CL M^pro and Suramin: (A) Structure of SARS-CoV-2 3CL M^pro and Suramin (B) SARS-CoV-2 3CL M^pro and Suramin approaching each other (C) SARS-CoV-2 3CL M^pro, Suramin complex (D) Suramin (shown as yellow sticks) residing in the cleft of SARS-CoV-2 3CL M^pro between domains II and III (E) Amino acid residues (shown as green sticks) of SARS-CoV-2 3CL M^pro interacting with Suramin (yellow sticks).