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. 2022 Jul 8;13:918731. doi: 10.3389/fimmu.2022.918731

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Copyright © 2022 Li, Gao, Liu, Liu, Wu, Dai, Han and Li

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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mCRP competitively inhibits the binding of the spike RBD to ACE2. (A) mCRP competes for the binding of spike RBD to ACE2 in a concentration-dependent manner. In the surface plasmon resonance (SPR) binding assay, different concentrations of mCRP were added to compete for the binding of the spike RBD to ACE2. Results showed that mCRP competed for the binding of the spike RBD to ACE2 in a concentration-dependent manner. (B) A fixed concentration of mCRP competes with the binding of different concentrations of the spike RBD to ACE2. For detecting the binding of different concentrations of the spike RBD to ACE2 (solid line), a fixed concentration of mCRP was added to compete for binding (dotted line), and mCRP competitively inhibited the binding of the spike RBD to ACE2.