Large-scale structural analysis of the core promoter in mammalian and plant genomes
Identifieur interne : 001765 ( Main/Exploration ); précédent : 001764; suivant : 001766Large-scale structural analysis of the core promoter in mammalian and plant genomes
Auteurs : Kobe Florquin [Belgique] ; Yvan Saeys [Belgique] ; Sven Degroeve [Belgique] ; Pierre Rouze [Belgique] ; Yves Van De Peer [Belgique]Source :
- Nucleic Acids Research [ 0305-1048 ] ; 2005.
Abstract
DNA encodes at least two independent levels of functional information. The first level is for encoding proteins and sequence targets for DNA-binding factors, while the second one is contained in the physical and structural properties of the DNA molecule itself. Although the physical and structural properties are ultimately determined by the nucleotide sequence itself, the cell exploits these properties in a way in which the sequence itself plays no role other than to support or facilitate certain spatial structures. In this work, we focus on these structural properties, comparing them between different organisms and assessing their ability to describe the core promoter. We prove the existence of distinct types of core promoters, based on a clustering of their structural profiles. These results indicate that the structural profiles are much conserved within plants (Arabidopsis and rice) and animals (human and mouse), but differ considerably between plants and animals. Furthermore, we demonstrate that these structural profiles can be an alternative way of describing the core promoter, in addition to more classical motif or IUPAC-based approaches. Using the structural profiles as discriminatory elements to separate promoter regions from non-promoter regions, reliable models can be built to identify core-promoter regions using a strictly computational approach.
Url:
DOI: 10.1093/nar/gki737
Affiliations:
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Acids Res.</title><idno type="ISSN">0305-1048</idno><idno type="eISSN">1362-4962</idno><imprint><publisher>Oxford University Press</publisher><date type="published" when="2005">2005</date><biblScope unit="volume">33</biblScope><biblScope unit="issue">13</biblScope><biblScope unit="page" from="4255">4255</biblScope><biblScope unit="page" to="4264">4264</biblScope></imprint><idno type="ISSN">0305-1048</idno></series><idno type="istex">99B623009F57BCF703462C37320549698663A49A</idno><idno type="DOI">10.1093/nar/gki737</idno><idno type="local">gki737</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0305-1048</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">DNA encodes at least two independent levels of functional information. The first level is for encoding proteins and sequence targets for DNA-binding factors, while the second one is contained in the physical and structural properties of the DNA molecule itself. Although the physical and structural properties are ultimately determined by the nucleotide sequence itself, the cell exploits these properties in a way in which the sequence itself plays no role other than to support or facilitate certain spatial structures. In this work, we focus on these structural properties, comparing them between different organisms and assessing their ability to describe the core promoter. We prove the existence of distinct types of core promoters, based on a clustering of their structural profiles. These results indicate that the structural profiles are much conserved within plants (Arabidopsis and rice) and animals (human and mouse), but differ considerably between plants and animals. Furthermore, we demonstrate that these structural profiles can be an alternative way of describing the core promoter, in addition to more classical motif or IUPAC-based approaches. 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