A myo-inositol dehydrogenase involved in aminocyclitol biosynthesis of hygromycin A

Autor: Michael O. Akintubosun, Melanie A. Higgins
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Beilstein Journal of Organic Chemistry, Vol 20, Iss 1, Pp 589-596 (2024)
Druh dokumentu: article
ISSN: 1860-5397
DOI: 10.3762/bjoc.20.51
Popis: Hygromycin A is a broad-spectrum antibiotic that contains a furanose, cinnamic acid, and aminocyclitol moieties. The biosynthesis of the aminocyclitol has been proposed to proceed through six enzymatic steps from glucose 6-phosphate through myo-inositol to the final methylenedioxy-containing aminocyclitol. Although there is some in vivo evidence for this proposed pathway, biochemical support for the individual enzyme activities is lacking. In this study, we verify the activity for one enzyme in this pathway. We show that Hyg17 is a myo-inositol dehydrogenase that has a unique substrate scope when compared to other myo-inositol dehydrogenases. Furthermore, we analyze sequences from the protein family containing Hyg17 and discuss genome mining strategies that target this protein family to identify biosynthetic clusters for natural product discovery.
Databáze: Directory of Open Access Journals