Cited by 275Microbial Natural Products and BiosynthesisAntimicrobial Peptides and ActivitiesChemical Synthesis and Analysis

Cyanobactins—ribosomal cyclic peptides produced by cyanobacteria

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Sivonen, Kaarina, Leikoski, Niina, Fewer, David P., Jokela, Jouni·2010·Applied Microbiology and Biotechnology

Abstract

Cyanobactins are small cyclic peptides that are produced by a diverse selection of cyanobacteria living in symbioses as well as terrestrial, marine, or freshwater environments. They include compounds with antimalarial, antitumor, and multidrug reversing activities and potential as pharmaceutical leads. Cyanobactins are produced through the proteolytic cleavage and cyclization of precursor peptides coupled with further posttranslational modifications such as heterocyclization, oxidation, or prenylation of amino acids. Cyanobactin gene clusters encode two proteases which cleave and cyclisize the precursor peptide as well as proteins participating in posttranslational modifications. The bioinformatic mining of cyanobacterial genomes has led to the discovery of novel cyanobactins. Heterologous expression of these gene clusters provided insights into the role of the genes participating in the biosynthesis of cyanobactins and facilitated the rational design of novel peptides. Enzymes participating in the biosynthesis of cyanobactins may prove useful as catalysts for producing novel cyclic peptides in the future. The recent discovery of the cyanobactin biosynthetic pathway in cyanobacteria extends our knowledge of their potential as producers of interesting metabolites.

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Authors
Sivonen, K., Leikoski, N., Fewer, D. P., & Jokela, J.
Affiliations
University of Helsinki (FI)
Corresponding author
Sivonen, Kaarina
Venue
Applied Microbiology and Biotechnology
Published
2010-02-27
Volume
86
Issue
5
Pages
1213-1225
ISSN
  • 0175-7598 (ISSN-L)
  • 1432-0614
OpenAlex
W2085960153
Cited by
275
References
102
Citations by year
2026: 12 · 2025: 13 · 2024: 20 · 2023: 20 · 2022: 18 · 2021: 11 · 2020: 13 · 2019: 25 · 2018: 20 · 2017: 13 · 2016: 16 · 2015: 20 · 2014: 21 · 2013: 17 · 2012: 22
FWCI
1.86
Type
journal article
Language
en
Open access
Licence
cc-by-nc
Locations
  • Applied Microbiology and Biotechnology (publishedVersion, cc-by-nc)
  • PubMed Central (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
  • Työväentutkimus Vuosikirja (submittedVersion)
Funders
Academy of Finland (118637)
Topics
  • Health Sciences › Medicine › Pharmacology › Microbial Natural Products and Biosynthesis
  • Life Sciences › Immunology and Microbiology › Microbiology › Antimicrobial Peptides and Activities
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Chemical Synthesis and Analysis
Keywords
cyanobactins, cyanobacteria, cyclic peptides, gene clusters, proteolytic cleavage, cyclization, post-translational modification, heterocyclization, prenylation, heterologous expression, antimalarial compounds, anticancer agents, natural product discovery, biosynthetic enzymes
MeSH terms
Cyanobacteria, Amino Acid Sequence, Bacterial Proteins, Biotechnology, Molecular Sequence Data, Peptides, Peptides, Cyclic, Ribosomes

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