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Ab initio prediction of transcription factor targets using structural knowledge.


ABSTRACT: Current approaches for identification and detection of transcription factor binding sites rely on an extensive set of known target genes. Here we describe a novel structure-based approach applicable to transcription factors with no prior binding data. Our approach combines sequence data and structural information to infer context-specific amino acid-nucleotide recognition preferences. These are used to predict binding sites for novel transcription factors from the same structural family. We demonstrate our approach on the Cys(2)His(2) Zinc Finger protein family, and show that the learned DNA-recognition preferences are compatible with experimental results. We use these preferences to perform a genome-wide scan for direct targets of Drosophila melanogaster Cys(2)His(2) transcription factors. By analyzing the predicted targets along with gene annotation and expression data we infer the function and activity of these proteins.

SUBMITTER: Kaplan T 

PROVIDER: S-EPMC1183507 | biostudies-literature | 2005 Jun

REPOSITORIES: biostudies-literature

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Ab initio prediction of transcription factor targets using structural knowledge.

Kaplan Tommy T   Friedman Nir N   Margalit Hanah H  

PLoS computational biology 20050624 1


Current approaches for identification and detection of transcription factor binding sites rely on an extensive set of known target genes. Here we describe a novel structure-based approach applicable to transcription factors with no prior binding data. Our approach combines sequence data and structural information to infer context-specific amino acid-nucleotide recognition preferences. These are used to predict binding sites for novel transcription factors from the same structural family. We demo  ...[more]

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