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. 2023 Mar 8;138(3):216. doi: 10.1140/epjp/s13360-023-03731-w

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© The Author(s) 2023

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Fig. 5 — Sketch of the orf7a domains capable of hosting a Zn $^{2 +}$ ion (gray sphere). Amino acid residues within a distance below 2.2 Å from Zn are highlighted in bold. Panels (c) and (d) are the blow-up of the two possible Zn $^{2 +}$ binding sites Cys(15)–His(19)–Cys(23) (circled in panel (a)) and Cys(58)–Cys(67)–His(73) [circled in panel (b)], respectively. Figure is taken from [3]