Fig. 9From: A study on the effect of natural products against the transmission of B.1.1.529 Omicron2D diagrams of A 3a,17a-Cinchophylline, B Berberine, C Cadambine, D Noscapine, E Oxoturkiyenine, F Quinadoline B, G Scedapin C, H Speciophylline and I Nigellidine, showing their interactions with the ACE2 metallopeptidase domain active siteBack to article page