Cited by 66Microbial Natural Products and BiosynthesisFungal and yeast genetics researchMycotoxins in Agriculture and Food

Phylogenomic analysis of non-ribosomal peptide synthetases in the genus Aspergillus

Cramer, Robert A., Stajich, Jason E., Yamanaka, Yvonne, Dietrich, Fred S., Steinbach, William J., Perfect, John R.·2006·Gene

Abstract

Fungi from the genus Aspergillus are important saprophytes and opportunistic human fungal pathogens that contribute in these and other diverse ways to human well-being. Part of their impact on human well-being stems from the production of small molecular weight secondary metabolites, which may contribute to the ability of these fungi to cause invasive fungal infections and allergic diseases. In this study, we identified one group of enzymes responsible for secondary metabolite production in five Aspergillus species, the non-ribosomal peptide synthetases (NRPS). Hidden Markov models were used to search the genome databases of A. fumigatus, A. flavus, A. terreus, A. nidulans, and A. oryzae for domains conserved in NRPS proteins. A genealogy of adenylation domains was utilized to identify orthologous and unique NRPS among the Aspergillus species examined, as well as gain an understanding of the potential evolution of Aspergillus NRPS. mRNA abundance of the 14 NRPS identified in the A. fumigatus genome was analyzed using real-time reverse transcriptase PCR in different environmental conditions to gain a preliminary understanding of the possible functions of the NRPSs' peptide products. Our results suggest that Aspergillus species contain conserved and unique NRPS genes with a complex evolutionary history. This result suggests that the genus Aspergillus produces a substantial diversity of non-ribosomally synthesized peptides. Further analysis of these genes and their peptide products may identify important roles for secondary metabolites produced by NRPS in Aspergillus physiology, ecology, and fungal pathogenicity.

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Crossref · 10.1016/j.gene.2006.07.008

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Authors
Cramer, R. A., Stajich, J. E., Yamanaka, Y., Dietrich, F. S., Steinbach, W. J., & Perfect, J. R.
Affiliations
Duke Medical Center (US)
Corresponding author
Cramer, Robert A.
Venue
Gene
Publisher
Elsevier BV
Published
2006-11
Volume
383
Pages
24-32
ISSN
0378-1119 (ISSN-L)
OpenAlex
W2020535740
Cited by
66
References
37
Citations by year
2025: 1 · 2024: 2 · 2022: 2 · 2021: 3 · 2020: 2 · 2019: 3 · 2018: 1 · 2017: 2 · 2015: 2 · 2014: 3 · 2013: 5 · 2012: 6
FWCI
5.43
Type
journal article
Language
en
Open access
closed
Locations
  • Gene (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • U.S. Public Health Service (1 K08 A1061149-01)
  • National Institute of Allergy and Infectious Diseases (K08AI061149, T32AI052080)
Topics
  • Health Sciences › Medicine › Pharmacology › Microbial Natural Products and Biosynthesis
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Fungal and yeast genetics research
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Mycotoxins in Agriculture and Food
Keywords
nonribosomal peptide synthetase, Aspergillus, secondary metabolites, adenylation domain, ortholog identification, Aspergillus fumigatus, Aspergillus flavus, Aspergillus terreus, Aspergillus nidulans, Aspergillus oryzae, gene expression, fungal pathogenicity, hidden Markov models
MeSH terms
Amino Acid Sequence, Aspergillus, Genes, Fungal, Humans, Molecular Sequence Data, Peptide Synthases, Phylogeny, RNA, Fungal, RNA, Messenger, Sequence Homology, Amino Acid, Protein Structure, Tertiary

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