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RIBO-seq in Bacteria: a Sample Collection and Library Preparation Protocol for NGS Sequencing
Published on: August 7, 2021
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Bacterial warfare again targets the ribosome
Marc A Schureck1, Christine M Dunham1
1Department of Biochemistry, Emory University School of Medicine, 1510 Clifton Road NE, Suite G223, Atlanta, GA 30322, USA.
Structure (London, England : 1993)
|May 9, 2014
Summary
Enterobacter cloacae contact-dependent growth inhibition (CDI) toxin structure was elucidated. This toxin targets bacterial translation by cleaving 16S ribosomal RNA, inhibiting growth.
Area of Science:
- Microbiology
- Structural Biology
- Molecular Biology
Background:
- Contact-dependent growth inhibition (CDI) systems are crucial for bacterial competition.
- Understanding the molecular mechanisms of CDI toxins is essential for deciphering bacterial interactions.
Purpose of the Study:
- To determine the structure of the Enterobacter cloacae CDI toxin in complex with its immunity protein.
- To elucidate the functional mechanism by which the CDI toxin inhibits bacterial growth.
Main Methods:
- X-ray crystallography was used to determine the protein complex structure.
- In vitro functional assays were performed to assess toxin activity.
Main Results:
- The structure of the Enterobacter cloacae CDI toxin bound to its immunity protein was resolved.
- Functional studies demonstrated that the toxin targets bacterial translation.
- The toxin was shown to cleave 16S ribosomal RNA, a key component of the ribosome.
Conclusions:
- The structural and functional data provide a molecular basis for CDI-mediated growth inhibition.
- The findings reveal a novel mechanism of translational inhibition by a bacterial toxin through rRNA cleavage.
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