Results 11 to 20 of about 15,660 (211)

The Stereochemistry of Complex Polyketide Biosynthesis by Modular Polyketide Synthases

open access: yesMolecules, 2011
Polyketides are a diverse class of medically important natural products whose biosynthesis is catalysed by polyketide synthases (PKSs), in a fashion highly analogous to fatty acid biosynthesis.
David H. Kwan, Frank Schulz
doaj   +4 more sources

Evolutionary Histories of Type III Polyketide Synthases in Fungi [PDF]

open access: yesFrontiers in Microbiology, 2020
Type III polyketide synthases (PKSs) produce secondary metabolites with diverse biological activities, including antimicrobials. While they have been extensively studied in plants and bacteria, only a handful of type III PKSs from fungi has been ...
Jorge Carlos Navarro-Muñoz   +1 more
doaj   +2 more sources

Engineering Polyketide Synthases [PDF]

open access: yesThe Scientific World Journal, 2002
Complex polyketides, exemplified by the molecules shown in Fig. 1, are produced mainly from a group of mycelia-forming bacteria belonging to the actinomycete family and have applications in medicine or agriculture. Worldwide sales of polyketides exceed $15 B annually.
Leonard Katz
doaj   +3 more sources

C–N bond formation by a polyketide synthase

open access: yesNature Communications, 2023
Assembly-line polyketide synthases (PKSs) are molecular factories that produce diverse metabolites with wide-ranging biological activities. PKSs usually work by constructing and modifying the polyketide backbone successively. Here, we present the cryo-EM
Jialiang Wang   +14 more
doaj   +1 more source

The insect pathogen Serratia marcescens Db10 uses a hybrid non-ribosomal peptide synthetase-polyketide synthase to produce the antibiotic althiomycin [PDF]

open access: yes, 2012
There is a continuing need to discover new bioactive natural products, such as antibiotics, in genetically-amenable micro-organisms. We observed that the enteric insect pathogen, Serratia marcescens Db10, produced a diffusible compound that inhibited the
Amy J. Gerc   +5 more
core   +13 more sources

Synthetic biology of polyketide synthases [PDF]

open access: yesJournal of Industrial Microbiology and Biotechnology, 2018
Abstract Complex reduced polyketides represent the largest class of natural products that have applications in medicine, agriculture, and animal health. This structurally diverse class of compounds shares a common methodology of biosynthesis employing modular enzyme systems called polyketide synthases (PKSs).
Yuzawa, Satoshi   +3 more
openaire   +4 more sources

In vitro Cas9-assisted editing of modular polyketide synthase genes to produce desired natural product derivatives

open access: yesNature Communications, 2020
Several different genetic strategies have been reported for the modification of polyketide synthases but the highly repetitive modular structure makes this difficult.
Kei Kudo   +10 more
doaj   +1 more source

Engineering the stambomycin modular polyketide synthase yields 37-membered mini-stambomycins

open access: yesNature Communications, 2022
Genetic engineering of the type I polyketide synthases (PKSs) to produce desirable analogous remains largely inefficient. Here, the authors leverage multiple approaches to delete seven internal modules from the stambomycin PKS and generate 37-membered ...
Li Su   +8 more
doaj   +1 more source

Challenges and opportunities for engineering assembly-line polyketide biosynthesis in Escherichia coli

open access: yesMetabolic Engineering Communications, 2020
Assembly-line polyketide synthases generate natural products that have led to many live-saving drugs. The use of E. coli as a heterologous host for reconstituting these enormous and complex enzymatic machines has and will continue to be a critical ...
Kai P. Yuet, Chaitan Khosla
doaj   +1 more source

Decrypting the programming of β-methylation in virginiamycin M biosynthesis

open access: yesNature Communications, 2023
Biosynthesis of complex polyketides by polyketide synthases often relies on trans-acting enzymes to modify the intermediates. Here, the authors elucidate how β-methylation enzymes identify their substrates.
Sabrina Collin   +6 more
doaj   +1 more source

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