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. 2020 Oct 2;85:153364. doi: 10.1016/j.phymed.2020.153364

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Fig 3 — SPR analysis of the interaction between TCM-derived components with S1 subunit of SARS-CoV-2. A to E exhibit kinetic behaviors of ginsenoside Ra2 (ZZY-8), ginsenoside Rb1 (ZZY-9), ginsenoside Rb3 (ZZY-13), glycyrrhizic acid (ZZY-44), berberine chloride (ZZY-54) and SARS-CoV-2 S1 subunit, respectively. F shown the K_D value of the five TCM-derived components.