title: Structural perspective of cooperative transcription factor binding.
abstract: In prokaryotes, individual transcription factors (TFs) can recognize long DNA motifs that are alone sufficient to define the genes that they induce or repress. In contrast, in higher organisms that have larger genomes, TFs recognize sequences that are too short to define unique genomic positions. In addition, development of multicellular organisms requires molecular systems that are capable of executing combinatorial logical operations. Co-operative recognition of DNA by multiple TFs allows both definition of unique genomic positions in large genomes, and complex information processing at the level of individual regulatory elements. The TFs can co-operate in multiple different ways, and the precise mechanism used for co-operation determines important features of the regulatory interactions. Here, we present an overview of the structural basis of the different mechanisms by which TFs can cooperate, focusing on insight from recent functional studies and structural analyses of specific TF-TF-DNA complexes.
authors.affiliation: Department of Medical Biochemistry and Biophysics, Karolinska Institutet, SE 171 77 Stockholm, Sweden.
authors.forename: Ekaterina
authors.initials: E
authors.lastname: Morgunova
authors.affiliation: Department of Medical Biochemistry and Biophysics, Karolinska Institutet, SE 171 77 Stockholm, Sweden; Genome-Scale Biology Research Program, P.O. Box 63, FI-00014 University of Helsinki, Finland. Electronic address: jussi.taipale@ki.se.
authors.forename: Jussi
authors.initials: J
authors.lastname: Taipale
mesh_terms: D001665:Binding Sites; D004247:DNA / Q000737:chemistry* / Q000235:genetics / Q000378:metabolism; D015394:Molecular Structure; D046912:Multiprotein Complexes; D009707:Nucleosomes; D059372:Nucleotide Motifs; D011485:Protein Binding; D013329:Structure-Activity Relationship; D014157:Transcription Factors / Q000737:chemistry* / Q000378:metabolism
chemical_list: D046912:Multiprotein Complexes; D009707:Nucleosomes; D014157:Transcription Factors; D004247:DNA