| Literature DB >> 12876199 |
Ling V Sun1, Liang Chen, Frauke Greil, Nicolas Negre, Tong-Ruei Li, Giacomo Cavalli, Hongyu Zhao, Bas Van Steensel, Kevin P White.
Abstract
We demonstrate the use of a chromosomal walk (or "tiling path") printed as DNA microarrays for mapping protein-DNA interactions across large regions of contiguous genomic DNA in Drosophila melanogaster. Microarrays were constructed with genomic DNA fragments 430-920 bp in length, covering 2.9 million base pairs of the Adh-cactus region of chromosome 2 and 85,000 base pairs of the 82F region of chromosome 3. We performed DNA localization mapping for the heterochromatin protein HP1 and for the sequence-specific GAGA transcription factor, producing a comprehensive, high-resolution map of in vivo protein-DNA interactions throughout these regions of the Drosophila genome.Entities:
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Year: 2003 PMID: 12876199 PMCID: PMC170935 DOI: 10.1073/pnas.1533393100
Source DB: PubMed Journal: Proc Natl Acad Sci U S A ISSN: 0027-8424 Impact factor: 11.205