Characterization of a Deinococcus radiodurans MazF: A UACA-specific RNA endoribonuclease.

ABSTRACT: Microbes are known to withstand environmental stresses by using chromosomal toxin-antitoxin systems. MazEF is one of the most extensively studied toxin-antitoxin systems. In stressful environments, MazF toxins modulate translation by cleaving single-stranded RNAs in a sequence-specific fashion. Previously, a chromosomal gene located at DR0417 in Deinococcus radiodurans was predicted to code for a MazF endoribonuclease (MazF_DR0417 ); however, its function remains unclear. In the present study, we characterized the molecular function of MazF_DR0417 . Analysis of MazF_DR0417 -cleaved RNA sites using modified massively parallel sequencing revealed a unique 4-nt motif, UACA, as a potential cleavage pattern. The activity of MazF

SUBMITTER: Miyamoto T 

PROVIDER: S-EPMC5635168 | biostudies-literature | 2017 Oct

REPOSITORIES: biostudies-literature