Six new β-resorcylic acid derivatives (1–5 and 7) were isolated from a halophyte-associated fungus, Colletotrichum gloeosporioides JS0419, together with four previously reported β-resorcylic acid lactones (RALs). The relative and absolute stereochemistry
Sunghee Bang +7 more
doaj +1 more source
Natural products in the predatory defence of the filamentous fungal pathogen Aspergillus fumigatus
The kingdom of fungi comprises a large and highly diverse group of organisms that thrive in diverse natural environments. One factor to successfully confront challenges in their natural habitats is the capability to synthesize defensive secondary ...
Jana M. Boysen +2 more
doaj +1 more source
Culturable Microorganisms Associated with Sea Cucumbers and Microbial Natural Products
Sea cucumbers are a class of marine invertebrates and a source of food and drug. Numerous microorganisms are associated with sea cucumbers. Seventy-eight genera of bacteria belonging to 47 families in four phyla, and 29 genera of fungi belonging to 24 ...
Lei Chen +3 more
doaj +1 more source
Engineered Biosynthesis of Alkyne-Tagged Polyketides by Type I PKSs [PDF]
Polyketides produced by modular polyketide synthases (PKSs) are important small molecules widely used as drugs, pesticides, and biological probes. Tagging these polyketides with a clickable functionality enables the visualization, diversification, and ...
Poenateetai, Nannalin +2 more
core +1 more source
Engineered biosynthesis of alkyne-tagged polyketides. [PDF]
Polyketides have demonstrated their significance as therapeutics, industrial products, pesticides, and biological probes following intense study over the past decades.
Gu, Di, Zhang, Wenjun
core +1 more source
Engineering microbial hosts to produce fatty-acid derived designer polyketides [PDF]
Polyketide synthases (PKSs) are versatile multimodular enzymes that biosynthesize molecules in an assembly line fashion. The discrete and sequential processing of the polyketide intermediates by domains in PKSs give rise to our ability to ...
Valencia, Luis Enrrique
core +1 more source
Two New Polyketides From Streptomyces sp. SA61: Isolation, Structure Elucidation, and Insecticidal Activity Against Bemisia tabaci. [PDF]
Isolation of six polyketides (including two new compounds, strekingmycins I and J) from earthworm gut‐derived Streptomyces sp. SA61 and their insecticidal activity against third‐instar nymphs of Bemisia tabaci. Strekingmycin A (1) exhibited the most potent activity (LC50 = 5.58 µg/mL), comparable to the commercial insecticide spirotetramat. ABSTRACT To
Cui P, Chen J, Zhu Z, Liu F, Yu Z.
europepmc +2 more sources
Polyketide synthesis in vitro on a modular polyketide synthase
The 6-deoxyerythronolide B synthase (DEBS) of Saccharopolyspora erythraea, which synthesizes the aglycone core of the antibiotic erythromycin A, contains some 30 active sites distributed between three multienzyme polypeptides (designated DEBS1-3). This complexity has hitherto frustrated mechanistic analysis of such enzymes.
Wiesmann, Kirsten E.H. +5 more
openaire +2 more sources
Iterative polyketide biosynthesis by modular polyketide synthases in bacteria [PDF]
Modular polyketide synthases (type I PKSs) in bacteria are responsible for synthesizing a significant percentage of bioactive natural products. This group of synthases has a characteristic modular organization, and each module within a PKS carries out one cycle of polyketide chain elongation; thus each module is non-iterative in function.
Haotong, Chen, Liangcheng, Du
openaire +2 more sources
Steroids and polyketides from Uvaria hamiltonii stem bark [PDF]
Dva poznata steroida, stigmasterol i 6-hidroksistigmasta-4,22-dien-3-on (1) i dva neuobičajena poliketida, cis-4-hidroksimelein (2) i trans-4-hidroksimelein (3) izolirana su iz kore biljke Uvaria hamiltonii.
CHOWDHURY, RASHEDUZZAMAN +3 more
core +1 more source

