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. 2023 Jan 13;17(3):478–485. doi: 10.1038/s41396-023-01360-w

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Fig. 3 — A Superposition of Lokiarcheaota-HgcA (green) and Desulfovibrio desulfuricans ND132-HgcA (purple) functional domain homology models. The functional domain is bound to cobalamin shown cyan-blue stick; B Superposition of Lokiarchaeota-HgcB (green) and Desulfovibrio desulfuricans ND132-HgcB (purple) homology models. Model of full-length Lokiarchaeota-HgcB in complex with two [4Fe-4S] clusters; Interactions between the protein and iron are shown by brown ball.