Results 81 to 90 of about 494,636 (171)

Circular Logic: Nonribosomal Peptide-like Macrocyclization with a Ribosomal Peptide Catalyst

open access: yes, 2016
A protease from ribosomal peptide biosynthesis macrocyclizes diverse substrates, including those resembling nonribosomal peptide and hybrid polyketide−peptide products.
Charles R. Robertson (2253277)   +5 more
core   +1 more source

Hybrid Macrocyclic Peptides — Synthetic Strategies to Diversify and Cyclize Peptide Libraries in Phage Display Selections

open access: yesChemistry – A European Journal, EarlyView.
Hybrid macrocyclic peptides unite genetically encoded peptide libraries with the structural complexity of synthetic small molecules. This Review critically analyzes phage‐compatible cyclization and diversification chemistries, highlights emerging opportunities beyond traditional cysteine‐based approaches, and outlines how future advances may enable the
Titia Rixt Oppewal, Clemens Mayer
wiley   +1 more source

Biosynthesis of the antibiotic nonribosomal peptide penicillin in baker's yeast [PDF]

open access: yes, 2017
Fungi are a valuable source of enzymatic diversity and therapeutic natural products including antibiotics. Here we engineer the baker’s yeast Saccharomyces cerevisiae to produce and secrete the antibiotic penicillin, a beta-lactam nonribosomal peptide ...
Ali R. Awan   +20 more
core   +1 more source

ExMODE: A comprehensive resource for extremophile genomic and functional exploration

open access: yesiMetaOmics, EarlyView.
ExMODE (https://db.genomics.cn/exmode/) integrates 3518 samples to build a unified extremophile resource, which hosts 1.35 billion habitat‐specific non‐redundant genes, 5.25 million representative protein structures, 67,026 metagenome‐assembled genomes (MAGs), and 164,132 biosynthetic gene clusters (BGCs). By combining sequence‐, structure‐, and genome‐
Denghui Li   +30 more
wiley   +1 more source

Structure and Function of a Dehydrating Condensation Domain in Nonribosomal Peptide Biosynthesis

open access: yes, 2022
Dehydroamino acids are important structural motifs and biosynthetic intermediates for natural products. Many bioactive natural products of nonribosomal origin contain dehydroamino acids; however, the biosynthesis of dehydroamino acids in most ...
Kamal Adhikari (9334450)   +8 more
core   +1 more source

Multi‐omics reveals gastrointestinal metabolic disorder‐induced diarrhea in postpartum dairy cows

open access: yesiMetaOmics, EarlyView.
Nutritional diarrhea is a pervasive, costly challenge in dairy production. Using integrated metagenomic and metabolomic profiling, we identified coordinated microbial and metabolic alterations across the rumen, hindgut, and serum. In the rumen, enrichment of Prevotella sp.
Weixuan Tang   +7 more
wiley   +1 more source

Synthesis of the Nonribosomal Peptide Phevalin and Analogs [PDF]

open access: yes, 2019
Phevalin, a cyclic nonribosomal peptide produced by Staphylococcus aureus, has intriguing biological properties. A synthetic route to access phevalin and similar pyrazinone natural products tyrvalin, leuvalin, phileucin, and a few synthetic analogs is ...
Yibin Zeng (2343964)   +7 more
core   +1 more source

Virulence, Host-Selective Toxin Production, and Development of Three Cochliobolus Phytopathogens Lacking the Sfp-Type 4′-Phosphopantetheinyl Transferase Ppt1

open access: yesMolecular Plant-Microbe Interactions, 2015
The Sfp-type 4′-phosphopantetheinyl transferase Ppt1 is required for activation of nonribosomal peptide synthetases, including α-aminoadipate reductase (AAR) for lysine biosynthesis and polyketide synthases, enzymes that biosynthesize peptide and ...
Nur Ain Izzati Mohd Zainudin   +7 more
doaj   +1 more source

Mining the Yucatan Coastal Microbiome for the Identification of Non-Ribosomal Peptides Synthetase (NRPS) Genes

open access: yesToxins, 2020
Prokaryotes represent a source of both biotechnological and pharmaceutical molecules of importance, such as nonribosomal peptides (NRPs). NRPs are secondary metabolites which their synthesis is independent of ribosomes.
Mario Alberto Martínez-Núñez   +1 more
doaj   +1 more source

ISAba1‐mediated crp‐osmC amplification enhances host‐associated fitness in Acinetobacter baumannii

open access: yesmLife, EarlyView.
Abstract Acinetobacter baumannii is a pathogen, highly adaptable to both hospital‐ and host‐associated environments. Understanding the genetic mechanisms underlying its adaptability is critical for controlling its persistence. Our study identified the crp‐osmC gene cluster, flanked by ISAba1 elements, as a significant genetic structure undergoing ...
Da‐Wei Wei   +7 more
wiley   +1 more source

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