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. 2022 Jun 20;147:105758. doi: 10.1016/j.compbiomed.2022.105758

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Fig. 2 — Superposed structures of spike RBD before (orange) and after (cyan) MD simulations in the strains (A) Wild Type (B) Delta (C) Omicron. Location of mutated residues are depicted by green colour spheres. (D) Superposed structure of the wild type, delta and omicron spike RBD depicting impact of mutations on the protein structure (Magenta = Wild Type, Grey = Delta and Blue = Omicron variant. C-alpha atoms of mutated residues are shown in red (for delta) and green (for omicron) colour spheres.).