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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5981
pubmed:dateCreated
2010-5-21
pubmed:abstractText
Transcription factors (TFs) direct gene expression by binding to DNA regulatory regions. To explore the evolution of gene regulation, we used chromatin immunoprecipitation with high-throughput sequencing (ChIP-seq) to determine experimentally the genome-wide occupancy of two TFs, CCAAT/enhancer-binding protein alpha and hepatocyte nuclear factor 4 alpha, in the livers of five vertebrates. Although each TF displays highly conserved DNA binding preferences, most binding is species-specific, and aligned binding events present in all five species are rare. Regions near genes with expression levels that are dependent on a TF are often bound by the TF in multiple species yet show no enhanced DNA sequence constraint. Binding divergence between species can be largely explained by sequence changes to the bound motifs. Among the binding events lost in one lineage, only half are recovered by another binding event within 10 kilobases. Our results reveal large interspecies differences in transcriptional regulation and provide insight into regulatory evolution.
pubmed:grant
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
1095-9203
pubmed:author
pubmed:issnType
Electronic
pubmed:day
21
pubmed:volume
328
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1036-40
pubmed:dateRevised
2011-1-3
pubmed:meshHeading
pubmed-meshheading:20378774-Algorithms, pubmed-meshheading:20378774-Animals, pubmed-meshheading:20378774-Base Sequence, pubmed-meshheading:20378774-Binding Sites, pubmed-meshheading:20378774-Biological Evolution, pubmed-meshheading:20378774-CCAAT-Enhancer-Binding Protein-alpha, pubmed-meshheading:20378774-Chickens, pubmed-meshheading:20378774-Chromatin Immunoprecipitation, pubmed-meshheading:20378774-DNA, pubmed-meshheading:20378774-Dogs, pubmed-meshheading:20378774-Evolution, Molecular, pubmed-meshheading:20378774-Gene Expression Regulation, pubmed-meshheading:20378774-Genome, pubmed-meshheading:20378774-Genome, Human, pubmed-meshheading:20378774-Hepatocyte Nuclear Factor 4, pubmed-meshheading:20378774-Humans, pubmed-meshheading:20378774-Liver, pubmed-meshheading:20378774-Mice, pubmed-meshheading:20378774-Opossums, pubmed-meshheading:20378774-Protein Binding, pubmed-meshheading:20378774-Regulatory Sequences, Nucleic Acid, pubmed-meshheading:20378774-Sequence Analysis, DNA, pubmed-meshheading:20378774-Species Specificity, pubmed-meshheading:20378774-Vertebrates
pubmed:year
2010
pubmed:articleTitle
Five-vertebrate ChIP-seq reveals the evolutionary dynamics of transcription factor binding.
pubmed:affiliation
Cancer Research UK, Cambridge Research Institute, Li Ka Shing Centre, Robinson Way, Cambridge CB2 0RE, UK.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't