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Exploring the characteristics of sequence elements in proximal promoters of human genes.

Identifieur interne : 003065 ( Main/Curation ); précédent : 003064; suivant : 003066

Exploring the characteristics of sequence elements in proximal promoters of human genes.

Auteurs : Minou Bina [États-Unis] ; Phillip Wyss ; Wenhui Ren ; Wojciech Szpankowski ; Elizabeth Thomas ; Ranjit Randhawa ; Sreedeepti Reddy ; Priya M. John ; Elsie I. Pares-Matos ; Arnold Stein ; Hao Xu ; Sheryl A. Lazarus

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RBID : pubmed:15533710

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English descriptors

Abstract

Central to reconstruction of cis-regulatory networks is identification and classification of naturally occurring transcription factor-binding sites according to the genes that they control. We have examined salient characteristics of 9-mers that occur in various orders and combinations in the proximal promoters of human genes. In evaluations of a dataset derived with respect to experimentally defined transcription initiation sites, in some cases we observed a clear correspondence of highly ranked 9-mers with protein-binding sites in genomic DNA. Evaluations of the larger dataset, derived with respect to the 5' end of human ESTs, revealed that a subset of the highly ranked 9-mers corresponded to sites for several known transcription factor families (including CREB, ETS, EGR-1, SP1, KLF, MAZ, HIF-1, and STATs) that play important roles in the regulation of vertebrate genes. We identified several highly ranked CpG-containing 9-mers, defining sites for interactions with the CREB and ETS families of proteins, and identified potential target genes for these proteins. The results of the studies imply that the CpG-containing transcription factor-binding sites regulate the expression of genes with important roles in pathways leading to cell-type-specific gene expression and pathways controlled by the complex networks of signaling systems.

DOI: 10.1016/j.ygeno.2004.08.013
PubMed: 15533710

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pubmed:15533710

Le document en format XML

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<term>Databases, Genetic</term>
<term>Gene Expression Regulation</term>
<term>Humans</term>
<term>Molecular Sequence Data</term>
<term>Promoter Regions, Genetic (genetics)</term>
<term>Protein Binding</term>
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<term>Liaison aux protéines</term>
<term>Régions 5' non traduites (génétique)</term>
<term>Régions promotrices (génétique) (génétique)</term>
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<term>Biologie informatique</term>
<term>Données de séquences moléculaires</term>
<term>Humains</term>
<term>Liaison aux protéines</term>
<term>Régulation de l'expression des gènes</term>
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<div type="abstract" xml:lang="en">Central to reconstruction of cis-regulatory networks is identification and classification of naturally occurring transcription factor-binding sites according to the genes that they control. We have examined salient characteristics of 9-mers that occur in various orders and combinations in the proximal promoters of human genes. In evaluations of a dataset derived with respect to experimentally defined transcription initiation sites, in some cases we observed a clear correspondence of highly ranked 9-mers with protein-binding sites in genomic DNA. Evaluations of the larger dataset, derived with respect to the 5' end of human ESTs, revealed that a subset of the highly ranked 9-mers corresponded to sites for several known transcription factor families (including CREB, ETS, EGR-1, SP1, KLF, MAZ, HIF-1, and STATs) that play important roles in the regulation of vertebrate genes. We identified several highly ranked CpG-containing 9-mers, defining sites for interactions with the CREB and ETS families of proteins, and identified potential target genes for these proteins. The results of the studies imply that the CpG-containing transcription factor-binding sites regulate the expression of genes with important roles in pathways leading to cell-type-specific gene expression and pathways controlled by the complex networks of signaling systems.</div>
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