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  RNA-structural mimicry in Escherichia coli ribosomal protein L4-dependent regulation of the S10 operon

Stelzl, U., Zengel, J. M., Tovbina, M., Walker, M., Nierhaus, K. H., Lindahl, L., et al. (2003). RNA-structural mimicry in Escherichia coli ribosomal protein L4-dependent regulation of the S10 operon. Journal of Biological Chemistry, 278(30), 28237-28245. doi:10.1074/jbc.M302651200.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0010-8A62-1 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0010-8A63-0
Genre: Journal Article
Alternative Title : J. Biol. Chem.

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 Creators:
Stelzl, Ulrich1, Author              
Zengel, Janice M., Author
Tovbina, Marina, Author
Walker, Marquis, Author
Nierhaus, Knud H.2, Author              
Lindahl, Lasse, Author
Patel, Dinshaw J., Author
Affiliations:
1Molecular Interaction Networks (Ulrich Stelzl), Independent Junior Research Groups (OWL), Max Planck Institute for Molecular Genetics, Max Planck Society, ou_1479660              
2Ribosomes, Max Planck Institute for Molecular Genetics, Max Planck Society, ou_1433558              

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 Abstract: Ribosomal protein L4 regulates the 11-gene S10 operon in Escherichia coli by acting, in concert with transcription factor NusA, to cause premature transcription termination at a Rho-independent termination site in the leader sequence. This process presumably involves L4 interaction with the leader mRNA. Here, we report direct, specific, and independent binding of ribosomal protein L4 to the S10 mRNA leader in vitro. Most of the binding energy is contributed by a small hairpin structure within the leader region, but a 64-nucleotide sequence is required for the bona fide interaction. Binding to the S10 leader mRNA is competed by the 23 S rRNA L4 binding site. Although the secondary structures of the mRNA and rRNA binding sites appear different, phosphorothioate footprinting of the L4-RNA complexes reveals close structural similarity in three dimensions. Mutational analysis of the mRNA binding site is compatible with the structural model. In vitro binding of L4 induces structural changes of the S10 leader RNA, providing a first clue for how protein L4 may provoke transcription termination.

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Language(s): eng - English
 Dates: 2003-07-182003-04-28
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: eDoc: 174958
DOI: 10.1074/jbc.M302651200
 Degree: -

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Title: Journal of Biological Chemistry
  Alternative Title : J. Biol. Chem.
Source Genre: Journal
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Publ. Info: -
Pages: - Volume / Issue: 278 (30) Sequence Number: - Start / End Page: 28237 - 28245 Identifier: ISSN: 0021-9258