Results 41 to 50 of about 20,629 (261)

Characterization of Eight Novel Spiroleptosphols from Fusarium avenaceum

open access: yesMolecules, 2019
Chemical analyses of Fusarium avenaceum grown on banana medium resulted in eight novel spiroleptosphols, T1, T2 and U−Z (1−8). The structures were elucidated by a combination of high-resolution mass spectrometric data and 1- and 2-D NMR ...
Klaus Ringsborg Westphal   +11 more
doaj   +1 more source

Manipulating polyketide stereochemistry by exchange of polyketide synthase modules

open access: yesChemical Communications, 2020
Exchange of polyketide synthase (PKS) modules by genetic engineering leads to efficient modification of polyketide stereochemistry.
Massicard, Jean-Malo   +3 more
openaire   +4 more sources

Atypical Condensation Domains Guide Discovery and Illuminate Biosynthesis of Myxoglucamides Featuring Vinyl‐Substituted, α‐Oxidized γ‐Amino Acids

open access: yesAngewandte Chemie, EarlyView.
Genome mining of atypical condensation (C) domains leads to the discovery of myxoglucamides, glycolipopeptides featuring an unprecedented vinyl‐substituted, α‐oxidized γ‐amino acid. Biosynthetic studies reveal a discrete C‐domain‐like O‐acyltransferase, a β‐hydroxylation‐dependent chain‐extension checkpoint, and an unusual pathway for γ‐amino acid ...
Tingting Wang   +10 more
wiley   +2 more sources

Broad‐Spectrum, Cell Envelope‐Active Marinocyclin Antibiotics From a Coral‐Derived Bacterium Are Effective Against Colistin‐Resistant Bacteria

open access: yesAngewandte Chemie, EarlyView.
Marinocyclins, polycationic macrocyclic depsipeptides, were discovered by genome mining from the marine coral‐derived bacterium Aquimarina megaterium. The compounds have broad‐spectrum activity against gram‐positive and gram‐negative ESKAPE bacteria.
Clara Chepkirui   +9 more
wiley   +2 more sources

Considerations Regarding the Cytotoxicity of Certain Classes of Fungal Polyketides—Potential Raw Materials for Skincare Products for Healthy and Diseased Skin

open access: yesPharmaceutics
Background: This study investigates the cytotoxicity of microbial polyketides biosynthesized by Monascus species through both in silico and in vitro approaches.
Daniela Albisoru   +7 more
doaj   +1 more source

Synthesis of the polyketide section of seragamide A and related cyclodepsipeptides via Negishi cross coupling

open access: yesBeilstein Journal of Organic Chemistry, 2019
The synthesis of the polyketide section present in the potently cytotoxic marine cyclodepsipeptide jasplakinolide and related natural products, geodiamolides and seragamides, is reported.
Jan Hendrik Lang, Thomas Lindel
doaj   +1 more source

Total synthesis of decarboxyaltenusin

open access: yesBeilstein Journal of Organic Chemistry, 2021
The total synthesis of decarboxyaltenusin (5’-methoxy-6-methyl-[1,1’-biphenyl]-3,3’,4-triol), a toxin produced by various mold fungi, has been achieved in seven steps in a yield of 31% starting from 4-methylcatechol and 1-bromo-3,5-dimethoxybenzene ...
Lucas Warmuth   +5 more
doaj   +1 more source

Investigations of the Evolved Molecular Basis for Terpenoid Biosynthesis in Marine Sponges

open access: yesAdvanced Science, EarlyView.
Confirming and extending a previous observation in another Bubarida sponge, genomic and functional analyses of A. cavernosa reveal that sponges retain the mevalonate pathway and employ single α‐domain T1TSs and UbiA‐type TSs for terpenoid biosynthesis. The absence of T1TSs clustering with other biosynthetic genes tentatively suggests, based on limited ...
Fangyan Chen   +6 more
wiley   +1 more source

Aniline-induced production of aniline-containing polyketides and related bicyclic polyketides by the Yellow River wetland-derived fungus Talaromyces funiculosus [PDF]

open access: yes, 2023
Introduction and MethodsSilencing gene activation can effectively enrich the diversity of fungal secondary metabolites.Results and DiscussionCultivation of the Yellow River wetland-derived fungus Talaromyces funiculosus HPU-Y01 with aniline led to the ...
Guangwei Wu   +8 more
core   +1 more source

Repurposing FDA‐Approved Drugs to Inhibit Fungal PPTases for Broad‐Spectrum Synergy

open access: yesAdvanced Science, EarlyView.
Fungal secondary metabolites serve as crucial virulence effectors; however, the potential of their biosynthetic pathways as antifungal targets remains inadequately comprehended. Repurposed FDA‐approved drugs inhibit fungal PPTase (essential for secondary metabolism) in vivo.
Zili Song   +7 more
wiley   +1 more source

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