Results 31 to 40 of about 494,636 (171)

Profile of PKS and NRPS Gene Clusters in the Genome of Streptomyces cellostaticus NBRC 12849T

open access: yesFermentation, 2023
Polyketides and nonribosomal peptides are major secondary metabolites in members of the genus Streptomyces. Streptomyces cellostaticus is a validly recognized species and the type strain produces cellostatin. However, little is known about whether it has
Hisayuki Komaki, Tomohiko Tamura
doaj   +1 more source

Nonribosomal Peptides from Marine Microbes and Their Antimicrobial and Anticancer Potential

open access: yesFrontiers in Pharmacology, 2017
Marine environments are largely unexplored and can be a source of new molecules for the treatment of many diseases such as malaria, cancer, tuberculosis, HIV etc.
Shivankar Agrawal   +5 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
Coulthurst Sarah J.   +28 more
core   +2 more sources

Pentaminomycins C–E: Cyclic Pentapeptides as Autophagy Inducers from a Mealworm Beetle Gut Bacterium

open access: yesMicroorganisms, 2020
Pentaminomycins C–E (1–3) were isolated from the culture of the Streptomyces sp. GG23 strain from the guts of the mealworm beetle, Tenebrio molitor. The structures of the pentaminomycins were determined to be cyclic pentapeptides containing a modified ...
Sunghoon Hwang   +5 more
doaj   +1 more source

Structures and function of a tailoring oxidase in complex with a nonribosomal peptide synthetase module

open access: yesNature Communications, 2022
Nonribosomal peptide synthetases work with additional enzymes to synthesise secondary metabolites and therapeutics. Here, the authors explore bacillamide D synthesis and show the oxidase action is done while the intermediate is attached to the synthetase
Camille Marie Fortinez   +5 more
doaj   +1 more source

Genetic and functional characterization of the gene cluster directing the biosynthesis of putisolvin I and II in Pseudomonas putida strain PCL1445 [PDF]

open access: yes, 2008
Pseudomonas putida PCL1445 secretes two cyclic lipopeptides, putisolvin I and putisolvin II, which possess a surface-tension-reducing ability, and are able to inhibit biofilm formation and to break down biofilms of Pseudomonas species including ...
Dubern, J.F.   +3 more
core   +1 more source

Unveiling the Complete Biosynthetic Pathway of Azacitidine: A Rare 1,3,5‐Triazine Nucleoside Derived From GTP

open access: yesAngewandte Chemie, EarlyView.
The azacitidine biosynthetic gene cluster (aza BGC) was identified by the resistance‐gene‐guided comparative genomics method in Streptomyces mobaraensis IPIO2. The complete biosynthetic pathway of azacitidine, which follows a “base‐first‐then‐glycosylation” logic, was elucidated through in vivo and in vitro experiments.
Dan Wang   +6 more
wiley   +2 more sources

Catalytic trajectory of a dimeric nonribosomal peptide synthetase subunit with an inserted epimerase domain

open access: yesNature Communications, 2022
The catalytic domains in nonribosomal peptide synthetases (NRPSs) are responsible for a choreography of events that elongates substrates into natural products.
Jialiang Wang   +9 more
doaj   +1 more source

Noncanonical Peloruside A Biosynthesis by an Uncultivated Verrucomicrobiota Symbiont

open access: yesAngewandte Chemie, EarlyView.
Noncanonical biochemistry of the peloruside PKS characterized in this work, comprising double bond generation by a noncanonical tridomain (blue), acetyl‐CoA recycling (orange), and proofreading systems (purple and yellow). The Z‐double bond is installed by TEB1 through O‐acetylation and acetate elimination. The acyl ligase PelB (AL, orange) selectively
Amy E. Fraley   +11 more
wiley   +2 more sources

Resurrecting ancestral antibiotics: unveiling the origins of modern lipid II targeting glycopeptides

open access: yesNature Communications, 2023
Antibiotics are central to modern medicine, and yet they are mainly the products of intra and inter-kingdom evolutionary warfare. To understand how nature evolves antibiotics around a common mechanism of action, we investigated the origins of an ...
Mathias H. Hansen   +8 more
doaj   +1 more source

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