de Freitas CS, Kato L, de Oliveira CMA, Queiroz LHK, Santana MJ, Schuquel IT, Delprete PG, da Silva RA, Quintino GO, da Silva Neto BR, Soares CMA, Pereira M. β-Carboline alkaloids from Galianthe ramosa inhibit malate synthase from Paracoccidioides spp.
Planta Med 2014;
80:1746-1752. [PMID:
25412318 DOI:
10.1055/s-0034-1383305]
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Abstract
As part of our continuing chemical and biological analyses of Rubiaceae species from Cerrado, we isolated novel alkaloids 1 and 2, along with known compounds epicatechin, ursolic acid, and oleanolic acid, from Galianthe ramosa. Alkaloid 2 inhibited malate synthase from the pathogenic fungus Paracoccidioides spp. This enzyme is considered an important molecular target because it is not found in humans. Molecular docking simulations were used to describe the interactions between the alkaloids and malate synthase.
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