Results 21 to 30 of about 8,226 (181)

Polymorphism of the Polyketide Synthase Gene phlD in Biocontrol Fluorescent Pseudomonads Producing 2,4-Diacetylphloroglucinol and Comparison of PhlD with Plant Polyketide Synthases

Molecular Plant-Microbe Interactions, 2001
Many biocontrol fluorescent pseudomonads can protect plants from soilborne fungal pathogens through production of the antifungal secondary metabolite 2,4-diacetylphloroglucinol (Phl). One of the phl biosynthetic genes, phlD, encodes a polyketide synthase
Alban Ramette, Yvan Moënne-Loccoz, Geneviève Défago   +2 more
doaj   +1 more source

Polyketide synthesis in vitro on a modular polyketide synthase

Chemistry & Biology, 1995
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., Cortés, Jesus, Brown, Murray J.B., Cutter, Annabel L., Staunton, James, Leadlay, Peter F.   +5 more
openaire   +2 more sources

Solution structure of the type I polyketide synthase Pks13 from Mycobacterium tuberculosis

BMC Biology, 2022
Background Type I polyketide synthases (PKSs) are multifunctional enzymes responsible for the biosynthesis of a group of diverse natural compounds with biotechnological and pharmaceutical interest called polyketides.
Cécile Bon, Stéphanie Cabantous, Sylviane Julien, Valérie Guillet, Christian Chalut, Julie Rima, Yoann Brison, Wladimir Malaga, Angelique Sanchez-Dafun, Sabine Gavalda, Annaïk Quémard, Julien Marcoux, Geoffrey S. Waldo, Christophe Guilhot, Lionel Mourey   +14 more
doaj   +1 more source

Expanding the Utility of Bioinformatic Data for the Full Stereostructural Assignments of Marinolides A and B, 24- and 26-Membered Macrolactones Produced by a Chemically Exceptional Marine-Derived Bacterium

Marine Drugs, 2023
Marinolides A and B, two new 24- and 26-membered bacterial macrolactones, were isolated from the marine-derived actinobacterium AJS-327 and their stereostructures initially assigned by bioinformatic data analysis.
Min Cheol Kim, Jaclyn M. Winter, Reiko Cullum, Alexander J. Smith, William Fenical   +4 more
doaj   +1 more source

Iterative polyketide biosynthesis by modular polyketide synthases in bacteria [PDF]

Applied Microbiology and Biotechnology, 2015
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

An in vitro platform for engineering and harnessing modular polyketide synthases

Nature Communications, 2020
A robust platform to study modular polyketide synthases (PKSs) in vitro is still unavailable. Here, the authors report the reconstitution of the venemycin PKS, engineer hybrid venemycin/pikromycin PKSs, and obtain much improved yields through employing ...
Takeshi Miyazawa, Melissa Hirsch, Zhicheng Zhang, Adrian T. Keatinge-Clay   +3 more
doaj   +1 more source

A single amino acid residue controls acyltransferase activity in a polyketide synthase from Toxoplasma gondii

iScience, 2022
Summary: Type I polyketide synthases (PKSs) are multidomain, multimodule enzymes capable of producing complex polyketide metabolites. These modules contain an acyltransferase (AT) domain, which selects acyl-CoA substrates to be incorporated into the ...
Hannah K. D’Ambrosio, Jack G. Ganley, Aaron M. Keeler, Emily R. Derbyshire   +3 more
doaj   +1 more source

A Polyketide Synthase Component for Oxygen Insertion into Polyketide Backbones [PDF]

Angewandte Chemie International Edition, 2018
AbstractEnzymatic core components from trans‐acyltransferase polyketide synthases (trans‐AT PKSs) catalyze exceptionally diverse biosynthetic transformations to generate structurally complex bioactive compounds. Here we focus on a group of oxygenases identified in various trans‐AT PKS pathways, including those for pederin, oocydins, and toblerols ...
Roy A. Meoded, Reiko Ueoka, Eric J. N. Helfrich, Katja Jensen, Nancy Magnus, Birgit Piechulla, Jörn Piel   +6 more
openaire   +5 more sources

Identification of a putative polyketide synthase gene involved in usnic acid biosynthesis in the lichen Nephromopsis pallescens.

PLoS ONE, 2018
Usnic acid is a unique polyketide produced by lichens. To characterize usnic acid biosynthesis, the transcriptome of the usnic-acid-producing lichen-forming fungus Nephromopsis pallescens was sequenced using Illumina NextSeq technology.
Yi Wang, Changan Geng, Xiaolong Yuan, Mei Hua, Fenghua Tian, Changtian Li   +5 more
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Expansion and Conservation of Biosynthetic Gene Clusters in Pathogenic Pyrenophora spp.

Toxins, 2020
Pyrenophora is a fungal genus responsible for a number of major cereal diseases. Although fungi produce many specialised or secondary metabolites for defence and interacting with the surrounding environment, the repertoire of specialised metabolites (SM)
Paula M. Moolhuijzen, Mariano Jordi Muria-Gonzalez, Robert Syme, Catherine Rawlinson, Pao Theen See, Caroline S. Moffat, Simon R. Ellwood   +6 more
doaj   +1 more source