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Morgan HP, Estibeiro P, Wear MA, Max KE, Heinemann U, Cubeddu L, Gallagher MP, Sadler PJ, Walkinshaw MD. Sequence specificity of single-stranded DNA-binding proteins: a novel DNA microarray approach. Nucleic Acids Res 2007; 35:e75. [PMID: 17488853 PMCID: PMC1904285 DOI: 10.1093/nar/gkm040] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We have developed a novel DNA microarray-based approach for identification of the sequence-specificity of single-stranded nucleic-acid-binding proteins (SNABPs). For verification, we have shown that the major cold shock protein (CspB) from Bacillus subtilis binds with high affinity to pyrimidine-rich sequences, with a binding preference for the consensus sequence, 5′-GTCTTTG/T-3′. The sequence was modelled onto the known structure of CspB and a cytosine-binding pocket was identified, which explains the strong preference for a cytosine base at position 3. This microarray method offers a rapid high-throughput approach for determining the specificity and strength of ss DNA–protein interactions. Further screening of this newly emerging family of transcription factors will help provide an insight into their cellular function.
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Affiliation(s)
- Hugh P. Morgan
- Centre for Translational and Chemical Biology, School of Biological Sciences, University of Edinburgh, Edinburgh EH9 3JR, UK, Nyrion Ltd, ETTC Biospace, Kings Buildings, Edinburgh EH9 3JF, UK, Max-Delbrück-Centrum für Molekulare Medizin 13125 Berlin, Germany, School of Molecular and Microbial Bioscience, University of Sydney, Sydney, NSW, 2006, Australia and School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, UK
| | - Peter Estibeiro
- Centre for Translational and Chemical Biology, School of Biological Sciences, University of Edinburgh, Edinburgh EH9 3JR, UK, Nyrion Ltd, ETTC Biospace, Kings Buildings, Edinburgh EH9 3JF, UK, Max-Delbrück-Centrum für Molekulare Medizin 13125 Berlin, Germany, School of Molecular and Microbial Bioscience, University of Sydney, Sydney, NSW, 2006, Australia and School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, UK
| | - Martin A. Wear
- Centre for Translational and Chemical Biology, School of Biological Sciences, University of Edinburgh, Edinburgh EH9 3JR, UK, Nyrion Ltd, ETTC Biospace, Kings Buildings, Edinburgh EH9 3JF, UK, Max-Delbrück-Centrum für Molekulare Medizin 13125 Berlin, Germany, School of Molecular and Microbial Bioscience, University of Sydney, Sydney, NSW, 2006, Australia and School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, UK
| | - Klaas E.A. Max
- Centre for Translational and Chemical Biology, School of Biological Sciences, University of Edinburgh, Edinburgh EH9 3JR, UK, Nyrion Ltd, ETTC Biospace, Kings Buildings, Edinburgh EH9 3JF, UK, Max-Delbrück-Centrum für Molekulare Medizin 13125 Berlin, Germany, School of Molecular and Microbial Bioscience, University of Sydney, Sydney, NSW, 2006, Australia and School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, UK
| | - Udo Heinemann
- Centre for Translational and Chemical Biology, School of Biological Sciences, University of Edinburgh, Edinburgh EH9 3JR, UK, Nyrion Ltd, ETTC Biospace, Kings Buildings, Edinburgh EH9 3JF, UK, Max-Delbrück-Centrum für Molekulare Medizin 13125 Berlin, Germany, School of Molecular and Microbial Bioscience, University of Sydney, Sydney, NSW, 2006, Australia and School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, UK
| | - Liza Cubeddu
- Centre for Translational and Chemical Biology, School of Biological Sciences, University of Edinburgh, Edinburgh EH9 3JR, UK, Nyrion Ltd, ETTC Biospace, Kings Buildings, Edinburgh EH9 3JF, UK, Max-Delbrück-Centrum für Molekulare Medizin 13125 Berlin, Germany, School of Molecular and Microbial Bioscience, University of Sydney, Sydney, NSW, 2006, Australia and School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, UK
| | - Maurice P. Gallagher
- Centre for Translational and Chemical Biology, School of Biological Sciences, University of Edinburgh, Edinburgh EH9 3JR, UK, Nyrion Ltd, ETTC Biospace, Kings Buildings, Edinburgh EH9 3JF, UK, Max-Delbrück-Centrum für Molekulare Medizin 13125 Berlin, Germany, School of Molecular and Microbial Bioscience, University of Sydney, Sydney, NSW, 2006, Australia and School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, UK
| | - Peter J. Sadler
- Centre for Translational and Chemical Biology, School of Biological Sciences, University of Edinburgh, Edinburgh EH9 3JR, UK, Nyrion Ltd, ETTC Biospace, Kings Buildings, Edinburgh EH9 3JF, UK, Max-Delbrück-Centrum für Molekulare Medizin 13125 Berlin, Germany, School of Molecular and Microbial Bioscience, University of Sydney, Sydney, NSW, 2006, Australia and School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, UK
| | - Malcolm D. Walkinshaw
- Centre for Translational and Chemical Biology, School of Biological Sciences, University of Edinburgh, Edinburgh EH9 3JR, UK, Nyrion Ltd, ETTC Biospace, Kings Buildings, Edinburgh EH9 3JF, UK, Max-Delbrück-Centrum für Molekulare Medizin 13125 Berlin, Germany, School of Molecular and Microbial Bioscience, University of Sydney, Sydney, NSW, 2006, Australia and School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, UK
- *To whom correspondence should be addressed. Tel:+44 (0) 131 650 7056; Fax: +44 (0) 131 650 7055;
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Godfray J, Fraser A, Page D, Barnard E, Estibeiro P. The use of nucleic acid tools for target validation in central nervous system therapy. Drug Discov Today Technol 2004; 1:85-91. [PMID: 24981376 DOI: 10.1016/j.ddtec.2004.06.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The main challenge facing target validation today comes from the ongoing genomics revolution, which is generating an unprecedented number of potential targets. Existing technologies, such as mouse knockouts, are struggling to provide the throughput now required. Nucleic acid tools including antisense, RNA interference, ribozymes and aptamers offer a potentially higher throughput means of manipulating gene expression and thus validating targets in complex biological systems such as the central nervous system.
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Affiliation(s)
- Jenny Godfray
- ExpressOn BioSystems Ltd., The Logan Building, Roslin BioCentre, Roslin, Midlothian EH25 9TT, UK. http://www.expresson.co.uk
| | - Adrian Fraser
- ExpressOn BioSystems Ltd., The Logan Building, Roslin BioCentre, Roslin, Midlothian EH25 9TT, UK
| | - David Page
- ExpressOn BioSystems Ltd., The Logan Building, Roslin BioCentre, Roslin, Midlothian EH25 9TT, UK
| | - Eleanor Barnard
- ExpressOn BioSystems Ltd., The Logan Building, Roslin BioCentre, Roslin, Midlothian EH25 9TT, UK
| | - Peter Estibeiro
- ExpressOn BioSystems Ltd., The Logan Building, Roslin BioCentre, Roslin, Midlothian EH25 9TT, UK
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