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Data from: The non-coding RNA CcnA modulates the master cell cycle regulators CtrA and GcrA in Caulobacter crescentus

Cite this dataset

Biondi, Emanuele; Beroual, Wanassa (2024). Data from: The non-coding RNA CcnA modulates the master cell cycle regulators CtrA and GcrA in Caulobacter crescentus [Dataset]. Dryad. https://doi.org/10.5061/dryad.4mw6m909k

Abstract

Bacteria are powerful models for understanding how cells divide and accomplish global regulatory programs. In Caulobacter crescentus, a cascade of essential master regulators supervises the correct and sequential activation of DNA replication, cell division and development of different cell types. Among them, the response regulator CtrA plays a crucial role coordinating all those functions. Here, for the first time we describe the role of a novel factor named CcnA, a cell cycle regulated ncRNA located at the origin of replication, presumably activated by CtrA and responsible for the accumulation of CtrA itself. In addition, CcnA may be also involved in the inhibition of translation of the S-phase regulator, GcrA, by interacting with its 5’ untranslated region (5’-UTR). Performing in vitro experiments and mutagenesis, we propose a mechanism of action of CcnA based on liberation (ctrA) or sequestration (gcrA) of their ribosome-binding site (RBS). Finally, its role may be conserved in other alphaproteobacterial species, such as Sinorhizobium meliloti, representing indeed a potentially conserved process modulating cell cycle in Caulobacterales and Rhizobiales

README: Data from: The non-coding RNA CcnA modulates the master cell cycle regulators CtrA and GcrA in Caulobacter crescentus

https://doi.org/10.5061/dryad.4mw6m909k

Description of the data and file structure

Fastq files included. See metadata.txt for details on which file relates to which sample. 

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