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. 2023 Jun 9;12(6):836. doi: 10.3390/biology12060836

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© 2023 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Predicted three-dimensional structures of enzymes related to the ascorbate biosynthesis pathway of A. fulica using the homology prediction method and templates from related molluscan species. These enzymes consist of (A) UDP-glucose 6-dehydrogenase (UGDH), (B) glucuronosyltransferase (UGT), (C) alcohol dehydrogenase (ADH), (D) gluconolactonase (GNL), (E) gulonolactone oxidase (GULO), (F) dehydroascorbate reductase (DHAR), (G) myo-inositol oxygenase (MIOX), and (H) ascorbate oxidase (AO).