RNaseE and the other constituents of the RNA degradosome are components of the bacterial cytoskeleton.

ABSTRACT: RNaseE is the main component of the RNA degradosome of Escherichia coli, which plays an essential role in RNA processing and decay. Localization studies showed that RNaseE and the other known degradosome components (RNA helicase B, polynucleotide phosphorylase, and enolase) are organized as helical filamentous structures that coil around the length of the cell. These resemble the helical structures formed by the MreB and MinD cytoskeletal proteins. Formation of the RNaseE cytoskeletal-like structure requires an internal domain of the protein that does not include the domains required for any of its known interactions or the minimal domain required for endonuclease activity. We conclude that the constituents of the RNA degradosome are components of the E. coli cytoskeleton, either assembled

SUBMITTER: Taghbalout A 

PROVIDER: S-EPMC1785250 | biostudies-literature | 2007 Jan

REPOSITORIES: biostudies-literature