Cited by 66RNA and protein synthesis mechanismsBacterial Genetics and BiotechnologyDNA and Nucleic Acid Chemistry

Interaction of tetracycline with RNA: photoincorporation into ribosomal RNA of Escherichia coli

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Oehler, R·1997·Nucleic Acids Research

Abstract

Photolysis of [3H]tetracycline in the presence of Escherichia coli ribosomes results in an approximately 1:1 ratio of labelling ribosomal proteins and RNAs. In this work we characterize crosslinks to both 16S and 23S RNAs. Previously, the main target of photoincorporation of [3H]tetracycline into ribosomal proteins was shown to be S7, which is also part of the one strong binding site of tetracycline on the 30S subunit. The crosslinks on 23S RNA map exclusively to the central loop of domain V (G2505, G2576 and G2608) which is part of the peptidyl transferase region. However, experiments performed with chimeric ribosomal subunits demonstrate that peptidyltransferase activity is not affected by tetracycline crosslinked solely to the 50S subunits. Three different positions are labelled on the 16S RNA, G693, G1300 and G1338. The positions of these crosslinked nucleotides correlate well with footprints on the 16S RNA produced either by tRNA or the protein S7. This suggests that the nucleotides are labelled by tetracycline bound to the strong binding site on the 30S subunit. In addition, our results demonstrate that the well known inhibition of tRNA binding to the A-site is solely due to tetracycline crosslinked to 30S subunits and furthermore suggest that interactions of the antibiotic with 16S RNA might be involved in its mode of action.

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Crossref · 10.1093/nar/25.6.1219

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Authors
Oehler, R.
Affiliations
University of Vienna (AT)
Corresponding author
Oehler, R
Venue
Nucleic Acids Research
Published
1997-03-15
Volume
25
Issue
6
Pages
1219-1224
ISSN
  • 0305-1048 (ISSN-L)
  • 1362-4962
OpenAlex
W1968311976
Cited by
66
References
2
Citations by year
2026: 1 · 2025: 5 · 2023: 3 · 2022: 2 · 2021: 1 · 2019: 3 · 2018: 1 · 2017: 1 · 2016: 5 · 2015: 1 · 2014: 3 · 2013: 1 · 2012: 1
FWCI
0.83
Type
journal article
Language
en
Open access
Locations
  • Nucleic Acids Research (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA and protein synthesis mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Bacterial Genetics and Biotechnology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA and Nucleic Acid Chemistry
Keywords
tetracycline, ribosomal RNA, 16S rRNA, 23S rRNA, Escherichia coli ribosome, 30S subunit, antibiotic binding sites, antibiotic mechanism of action, crosslinking
MeSH terms
Base Sequence, Binding Sites, Chimera, Cross-Linking Reagents, Escherichia coli, Models, Structural, Molecular Sequence Data, Nucleic Acid Conformation, Photolysis, RNA-Directed DNA Polymerase, Ribosomes, RNA, Bacterial, RNA, Ribosomal, RNA, Ribosomal, 16S, RNA, Ribosomal, 23S, Tetracycline

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