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  • Title: Analyzing multiple data sets by interconnecting RSAT programs via SOAP Web services: an example with ChIP-chip data.
    Author: Sand O, Thomas-Chollier M, Vervisch E, van Helden J.
    Journal: Nat Protoc; 2008; 3(10):1604-15. PubMed ID: 18802441.
    Abstract:
    This protocol shows how to access the Regulatory Sequence Analysis Tools (RSAT) via a programmatic interface in order to automate the analysis of multiple data sets. We describe the steps for writing a Perl client that connects to the RSAT Web services and implements a workflow to discover putative cis-acting elements in promoters of gene clusters. In the presented example, we apply this workflow to lists of transcription factor target genes resulting from ChIP-chip experiments. For each factor, the protocol predicts the binding motifs by detecting significantly overrepresented hexanucleotides in the target promoters and generates a feature map that displays the positions of putative binding sites along the promoter sequences. This protocol is addressed to bioinformaticians and biologists with programming skills (notions of Perl). Running time is approximately 6 min on the example data set.
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