Fermentation and purification strategies for the production of betulinic acid and its lupane-type precursors in Saccharomyces cerevisiae [PDF]
Microbial production of plant derived, biologically active compounds has the potential to provide economic and ecologic alternatives to existing low productive, plant-based processes. Current production of the pharmacologically active cyclic triterpenoid
Arnezeder +48 more
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Evaluating the Evolutionary Origins of Unexpected Character Distributions within the Bacterial Planctomycetes-Verrucomicrobia-Chlamydiae Superphylum [PDF]
Recently, several characters that are absent from most bacteria, but which are found in many eukaryotes or archaea, have been identified within the bacterial Planctomycetes-Verrucomicrobia-Chlamydiae (PVC) superphylum.
A. Budd, D. P. Devos
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Yeast oxidosqualene cyclase (Erg7p) is a major component of lipid particles. [PDF]
Oxidosqualene cyclase of the yeast encoded by the ERG7 gene converts oxidosqualene to lanosterol, the first cyclic component of sterol biosynthesis. In a previous study (Athenstaedt, K., Zweytick, D., Jandrositz, A, Kohlwein, S. D., and Daum, G. (1999) J.
Franca Viola +6 more
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MPOD: Applications of integrated multi‐omics database for medicinal plants
Plant Biotechnology Journal, Volume 20, Issue 5, Page 797-799, May 2022.
Simei He +14 more
wiley +1 more source
Characterization of the Channel Constriction Allowing the Access of the Substrate to the Active Site of Yeast Oxidosqualene Cyclase [PDF]
In oxidosqualene cyclases (OSCs), an enzyme which has been extensively studied as a target for hypocholesterolemic or antifungal drugs, a lipophilic channel connects the surface of the protein with the active site cavity.
Annalisa Pastore +28 more
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Limonoids produced by citrus are a group of highly bioactive secondary metabolites which provide health benefits for humans. Currently there is a lack of information derived from research on the genetic mechanisms controlling the biosynthesis of ...
Fusheng Wang +11 more
doaj +1 more source
Post-Cyclization Skeletal Rearrangements in Plant Triterpenoid Biosynthesis by a Pair of Branchpoint Isomerases [PDF]
Triterpenoids possess potent biological activities, but their polycyclic skeletons are challenging to synthesize. The skeletal diversity of triterpenoids in plants is generated by oxidosqualene cyclases based on epoxide-triggered cationic rearrangement ...
Chuang, Ling, Franke, Jakob, Liu, Shenyu
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Synthesis of the oxysterol, 24(S), 25-epoxycholesterol, parallels cholesterol production and may protect against cellular accumulation of newly-synthesized cholesterol [PDF]
AIM: The effects of 24(S),25-epoxycholesterol (24,25EC) on aspects of cholesterol homeostasis is well-documented. When added to cells, 24,25EC decreases cholesterol synthesis and up-regulates cholesterol efflux genes, including ABCA1.
Brown, Andrew J +2 more
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Enzyme-catalyzed cationic epoxide rearrangements in quinolone alkaloid biosynthesis. [PDF]
Epoxides are highly useful synthons and biosynthons for the construction of complex natural products during total synthesis and biosynthesis, respectively.
Garcia-Borràs, Marc +8 more
core
Kinetic studies on the function of all the conserved tryptophans involved inside and outside the QW motifs of squalene-hopene cyclase: stabilizing effect of the protein structure against thermal denaturation. [PDF]
Site-directed mutagenesis experiments were carried out to identify the responsibility of the eight QW motifs for the reaction catalyzed by squalene-hopene cyclase (SHC).
4371 +3 more
core +1 more source

