Unknown

Dataset Information

0

Genome mining- and synthetic biology-enabled production of hypermodified peptides.


ABSTRACT: The polytheonamides are among the most complex and biosynthetically distinctive natural products known to date. These potent peptide cytotoxins are derived from a ribosomal precursor processed by 49 mostly non-canonical posttranslational modifications. As the producer is a 'microbial dark matter' bacterium only distantly related to any cultivated organism, >70-step chemical syntheses have been developed to access these unique compounds. Here, we mined prokaryotic diversity to establish a synthetic platform based on the new host Microvirgula aerodenitrificans that produces hypermodified peptides within two days. Using this system, we generated the aeronamides, new polytheonamide-type compounds with near-picomolar cytotoxicity. Aeronamides, as well as the polygeonamides produced from deep-rock biosphere DNA, contain the highest numbers of D-amino acids in known biomolecules. With increasing bacterial genomes being sequenced, similar host mining strategies might become feasible to access further elusive natural products from uncultivated life.

SUBMITTER: Bhushan A 

PROVIDER: S-EPMC6763334 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature

altmetric image

Publications

Genome mining- and synthetic biology-enabled production of hypermodified peptides.

Bhushan Agneya A   Egli Peter J PJ   Peters Eike E EE   Freeman Michael F MF   Piel Jörn J  

Nature chemistry 20190909 10


The polytheonamides are among the most complex and biosynthetically distinctive natural products known to date. These potent peptide cytotoxins are derived from a ribosomal precursor processed by 49 mostly non-canonical posttranslational modifications. As the producer is a 'microbial dark matter' bacterium only distantly related to any cultivated organism, >70-step chemical syntheses have been developed to access these unique compounds. Here, we mined prokaryotic diversity to establish a synthet  ...[more]

Similar Datasets

| S-EPMC1948103 | biostudies-other
| S-EPMC7193017 | biostudies-literature
| S-EPMC3564264 | biostudies-other
| S-EPMC6180311 | biostudies-literature
| S-EPMC6989040 | biostudies-literature
| S-EPMC7570057 | biostudies-literature
| S-EPMC6070867 | biostudies-literature
| S-EPMC6178918 | biostudies-literature
| S-EPMC4993189 | biostudies-literature
| S-EPMC3370425 | biostudies-literature