The successful completion of the human genome and model organism sequences has ushered in a new era in biological research, with attention now focused on understanding the way in which genome sequence information is expressed and controlled. The focus of this proposed Wisconsin Center of Excellence in Genomics Science is to facilitate understanding of the complex and integrated regulatory mechanisms affecting gene transcription by developing novel technology for the comprehensive characterization and quantitative analysis of proteins interacting with DMA. This new technology will help provide for a genomewide functional interpretation of the underlying mechanisms by which gene transcriptional regulation is altered during biological processes, development, disease, and in response to physiological, pharmacological, or environmental stressors. The development of chromatin immunoprecipitation approaches has allowed identification of the specific DMA sequences bound by proteins of interest. We propose to reverse this strategy and develop an entirely novel technology that will use oligonucleotide capture to pull down DNA sequences ot interest, and mass spectrometry to identify and characterize the proteins and protein complexes bound and associated with particular DNA regions. This new approach will create an invaluable tool for deciphering the critical control processes regulating an essential biological function. The proposed interdisciplinary and multi-institutional Center of Excellence in Genomics Science combines specific expertise at the Medical College of Wisconsin, the University of Wisconsin Madison, and Marquette University. Technological developments in four specific areas will be pursued to develop this new approach: (1) cross-linking of proteins to DNA and fragmentation of chromatin;(2) capture of the protein-DNA complexes in a DNA sequence-specific manner;(3) mass spectrometry analysis to identify and quantify bound proteins, determine posttranslational modifications, and characterize protein complex stoichipmetry;and (4) informatics to develop tools enabling the global analysis of the relationship between changes in protein-DNA interactions and gene expression. The Center will use carefully selected biological systems of increasing complexity from three species (yeast, mouse, human) to develop and test the technology in an integrated genome-wide analysis platform that includes efficient data management and analysis tools. As part of the Center mission, we will combine our technology development efforts with an interdisciplinary training program for students and fellows designed to train qualified scientists experienced in cutting-edge genomics technology. Data, technology, and software will be widely disseminated by multiple mechanisms including licensing and commercialization activities.

Public Health Relevance

The development of this novel technology to comprehensively identify and characterize genpmic protein- DNA interactions will help in the interpretation of a core function of the genome, gene transcription. The tools and technologies developed as part of the CEGS will be broadly available to the scientific community, and will help decipher crucial molecular mechanisms regulating the transcriptional levels of all genes across the genome, and how these regulatory mechanisms are altered in disease. This knowledge will revolutionize our understanding of genome biology, and impact how genomic information will be used in clinical medicine.

National Institute of Health (NIH)
National Human Genome Research Institute (NHGRI)
Specialized Center (P50)
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Special Emphasis Panel (ZHG1-HGR-N (J1))
Program Officer
Gatlin, Christine L
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Texas Biomedical Research Institute
San Antonio
United States
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Kennedy-Darling, Julia; Holden, Matthew T; Shortreed, Michael R et al. (2014) Multiplexed programmable release of captured DNA. Chembiochem 15:2353-6
Ladror, Daniel T; Frey, Brian L; Scalf, Mark et al. (2014) Methylation of yeast ribosomal protein S2 is elevated during stationary phase growth conditions. Biochem Biophys Res Commun 445:535-41
Guillen-Ahlers, Hector; Shortreed, Michael R; Smith, Lloyd M et al. (2014) Advanced methods for the analysis of chromatin-associated proteins. Physiol Genomics 46:441-7
Sheynkman, Gloria M; Shortreed, Michael R; Frey, Brian L et al. (2014) Large-scale mass spectrometric detection of variant peptides resulting from nonsynonymous nucleotide differences. J Proteome Res 13:228-40
Sheynkman, Gloria M; Johnson, James E; Jagtap, Pratik D et al. (2014) Using Galaxy-P to leverage RNA-Seq for the discovery of novel protein variations. BMC Genomics 15:703
Kennedy-Darling, Julia; Smith, Lloyd M (2014) Measuring the formaldehyde Protein-DNA cross-link reversal rate. Anal Chem 86:5678-81
Russell, Jason D; Scalf, Mark; Book, Adam J et al. (2013) Characterization and quantification of intact 26S proteasome proteins by real-time measurement of intrinsic fluorescence prior to top-down mass spectrometry. PLoS One 8:e58157
Kim, Do-Young; Scalf, Mark; Smith, Lloyd M et al. (2013) Advanced proteomic analyses yield a deep catalog of ubiquitylation targets in Arabidopsis. Plant Cell 25:1523-40
Frey, Brian L; Ladror, Daniel T; Sondalle, Samuel B et al. (2013) Chemical derivatization of peptide carboxyl groups for highly efficient electron transfer dissociation. J Am Soc Mass Spectrom 24:1710-21
Miller, Marcus J; Scalf, Mark; Rytz, Therese C et al. (2013) Quantitative proteomics reveals factors regulating RNA biology as dynamic targets of stress-induced SUMOylation in Arabidopsis. Mol Cell Proteomics 12:449-63

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