Cited by 75Biochemical and Structural CharacterizationAlzheimer's disease research and treatmentsPrion Diseases and Protein Misfolding

Microbial functional amyloids serve diverse purposes for structure, adhesion and defence

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Shanmugam, Nirukshan, Baker, Max O. D. G., Ball, Sarah R., Steain, Megan, Pham, Chi L. L., Sunde, Margaret·2019·Biophysical Reviews

Abstract

The functional amyloid state of proteins has in recent years garnered much attention for its role in serving crucial and diverse biological roles. Amyloid is a protein fold characterised by fibrillar morphology, binding of the amyloid-specific dyes Thioflavin T and Congo Red, insolubility and underlying cross-β structure. Amyloids were initially characterised as an aberrant protein fold associated with mammalian disease. However, in the last two decades, functional amyloids have been described in almost all biological systems, from viruses, to bacteria and archaea, to humans. Understanding the structure and role of these amyloids elucidates novel and potentially ancient mechanisms of protein function throughout nature. Many of these microbial functional amyloids are utilised by pathogens for invasion and maintenance of infection. As such, they offer novel avenues for therapies. This review examines the structure and mechanism of known microbial functional amyloids, with a particular focus on the pathogenicity conferred by the production of these structures and the strategies utilised by microbes to interfere with host amyloid structures. The biological importance of microbial amyloid assemblies is highlighted by their ubiquity and diverse functionality.

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  1. [104]104. Sasaki T, Fassler R, Hohenester E (2004) Laminin: the crux of basement membrane assembly. J Cell Biol 164:959-963. https://doi.org/10. 1083/jcb.200401058

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Authors
Shanmugam, N., Baker, M. O. D. G., Ball, S. R., Steain, M., Pham, C. L. L., & Sunde, M.
Affiliations
The University of Sydney (AU)
Corresponding author
Sunde, Margaret
Venue
Biophysical Reviews
Published
2019-05-02
Volume
11
Issue
3
Pages
287-302
ISSN
  • 1867-2450 (ISSN-L)
  • 1867-2469
OpenAlex
W2943742239
Cited by
75
References
149
Citations by year
2026: 4 · 2025: 6 · 2024: 8 · 2023: 8 · 2022: 14 · 2021: 17 · 2020: 13 · 2019: 4 · 2018: 1
FWCI
1.06
Type
journal article
Language
en
Open access
Locations
  • Biophysical Reviews (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Australian Government
  • Australian Research Council (DP180101275)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Biochemical and Structural Characterization
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Prion Diseases and Protein Misfolding
Keywords
functional amyloids, protein self-assembly, cross-β structure, bacterial adhesion, pathogenicity, host-pathogen interaction, thioflavin T, Congo red, amyloid structure

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