Article Dans Une Revue Prion Année : 2021

The Expanding Scope of Amyloid Signalling

Résumé

Formation of higher-order supramolecular complexes has emerged as a common principle underlying activity of a number of immune and regulated cell-death signalling pathways in animals, plants and fungi. Some of these signalosomes employ functional amyloid motifs in their assembly process. The description of such systems in fungi finds its origin in earlier studies on a fungal prion termed [Het-s], originally identified as a non-Mendelian cytoplasmic infectious element. Janine Beisson has been a key contributor to such early studies. Recent work on this and related systems offers a more integrated view framing this prion in a broader picture including related signalling systems described in animals. We propose here an auto-commentary centred on three recent studies on amyloid signalling in microbes. Collectively, these studies increase our understanding of fold conservation in functional amyloids and the structural basis of seeding, highlight the relation of fungal amyloid motifs to mammalian RHIM (RIP homotypic interaction motif) and expand the concept of Nod-like receptor-based amyloid signalosomes to the prokaryote reign.
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hal-04833195 , version 1 (12-12-2024)

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Asen Daskalov, Sven J. Saupe. The Expanding Scope of Amyloid Signalling. Prion, 2021, 15 (1), pp.21-28. ⟨10.1080/19336896.2021.1874791⟩. ⟨hal-04833195⟩

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