Posted by: shrikantmantri | November 4, 2009

“Cell Paper”: Profiling the Human Protein-DNA Interactome

via Cell on 11/3/09


Publication Date: 2009 Oct 30 PMID: 19879846
Authors: Hu, S. – Xie, Z. – Onishi, A. – Yu, X. – Jiang, L. – Lin, J. – Rho, H. S. – Woodard, C. – Wang, H. – Jeong, J. S. – Long, S. – He, X. – Wade, H. – Blackshaw, S. – Qian, J. – Zhu, H.
Journal: Cell

Protein-DNA interactions (PDIs) mediate a broad range of functions essential for cellular differentiation, function, and survival. However, it is still a daunting task to comprehensively identify and profile sequence-specific PDIs in complex genomes. Here, we have used a combined bioinformatics and protein microarray-based strategy to systematically characterize the human protein-DNA interactome. We identified 17,718 PDIs between 460 DNA motifs predicted to regulate transcription and 4,191 human proteins of various functional classes. Among them, we recovered many known PDIs for transcription factors (TFs). We identified a large number of unanticipated PDIs for known TFs, as well as for previously uncharacterized TFs. We also found that over three hundred unconventional DNA-binding proteins (uDBPs)-which include RNA-binding proteins, mitochondrial proteins, and protein kinases-showed sequence-specific PDIs. One such uDBP, ERK2, acts as a transcriptional repressor for interferon gamma-induced genes, suggesting important biological roles for such proteins.

post to: CiteULike

Posted via email from Sharing significant bytes —(Shrikant Mantri)

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