Download MendeleyChemical Evolution of Early Macromolecules: From Prebiotic Oligopeptides to Self-Organizing Biosystems via Amyloid Formation.
Bencs, F., Taricska, N., Durvanger, Z., Horvath, D., Fazekas, Z., Grolmusz, V., Farkas, V., Perczel, A.(2025) Chemistry 31: e202404669-e202404669
- PubMed: 40197673
- DOI: https://doi.org/10.1002/chem.202404669
- Primary Citation of Related Structures:
9GJ3, 9GJ4 - PubMed Abstract:
Short amyloidogenic oligopeptides (APRs) are proposed as early macromolecules capable of forming solvent-separated nanosystems under prebiotic conditions. This study provides experimental evidence that APRs, such as the aggregation-prone oligopeptide A (APR-A), can undergo mutational transitions to form distinct variants and convert to APR-B, either amyloid-like or water-soluble and non-aggregating. These transitions occur along a spectrum from strongly amyloidogenic (pro-amyloid) to weakly amyloidogenic (anti-amyloid), with the mutation sequence order playing a key role in determining their physicochemical properties. The pro-amyloid pathway facilitates heterogeneous phase separation, leading to amyloid-crystal formation with multiple polymorphs, including the first class 3 amyloid topology. By mapping these transitions, we demonstrate the potential co-evolution of water-soluble miniproteins and insoluble amyloids, both of which could have been pivotal in early bio-nanosystem formation. These insights into amyloid modulation provide a crucial step toward understanding amyloid control mechanisms.
- ELTE Hevesy György PhD School of Chemistry, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/A, Budapest, H-1117, Hungary.
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