Bacterial RNA chaperones and chaperone-like riboregulators: behind the scenes of RNA-mediated regulation of cellular metabolism. Issue 1 (31st December 2022)

• Record Type: Journal Article
• Authors: Katsuya-Gaviria, Kai; Paris, Giulia; Dendooven, Tom; Bandyra, Katarzyna J.
• Is Part Of: RNA biology. Volume 19:Issue 1(2022)
• Page Start: 419
• Page End: 436
• Publication Date: 2022-12-31
• Subjects: RNA chaperone -- ProQ -- CsrA -- RNA metabolism -- C-terminal domain -- Hfq -- Riboregulation; RNA -- Periodicals; Molecular biology -- Periodicals; Molecular biology; RNA; Periodicals; 572.8805
• DOI: 10.1080/15476286.2022.2048565
• Languages: English
• ISSNs: 1547-6286

Abstract

ABSTRACT: In all domains of life, RNA chaperones safeguard and guide the fate of the cellular RNA pool. RNA chaperones comprise structurally diverse proteins that ensure proper folding, stability, and ribonuclease resistance of RNA, and they support regulatory activities mediated by RNA. RNA chaperones constitute a topologically diverse group of proteins that often present an unstructured region and bind RNA with limited nucleotide sequence preferences. In bacteria, three main proteins – Hfq, ProQ, and CsrA – have been shown to regulate numerous complex processes, including bacterial growth, stress response and virulence. Hfq and ProQ have well-studied activities as global chaperones with pleiotropic impact, while CsrA has a chaperone-like role with more defined riboregulatory function. Here, we describe relevant novel insights into their common features, including RNA binding properties, unstructured domains, and interplay with other proteins important to RNA metabolism.