A Library-based Approach Allows Systematic and Rapid Evaluation of Seed Region Length and Reveals Design Rules for Synthetic Bacterial Small RNAs

Overview

Journal iScience

Publisher Cell Press

Date 2024 Sep 16

PMID 39280619

Authors

Michel Bruck

Tania S Kobel

Sophie Dittmar

Adan A Ramirez Rojas

Jens Georg

Bork A Berghoff

Daniel Schindler

Affiliations

Soon will be listed here.

Abstract

All organisms must respond to environmental changes. In bacteria, small RNAs (sRNAs) are an important aspect of the regulation network underlying the adaptation to such changes. sRNAs base-pair with their target mRNAs, allowing rapid modulation of the proteome. This post-transcriptional regulation is usually facilitated by RNA chaperones, such as Hfq. sRNAs have a potential as synthetic regulators that can be modulated by rational design. In this study, we use a library-based approach and oxacillin susceptibility assays to investigate the importance of the seed region length for synthetic sRNAs based on RybB and SgrS scaffolds in . In the presence of Hfq we show that 12 nucleotides are sufficient for regulation. Furthermore, we observe a scaffold-specific Hfq-dependency and processing by RNase E. Our results provide information for design considerations of synthetic sRNAs in basic and applied research.

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