MOTIVATION Data from DNA microarrays and ChIP-chip binding assays often form the basis of transcriptional regulatory analyses. However, experimental noise in both data types combined with environmental dependence and uncorrelation between binding and regulation in ChIP-chip binding data complicate analyses that utilize these complimentary data sources. Therefore, to minimize the impact of these...

Starr is an extension of the Ringo [6] package for the analysis of ChIP-chip projects. Whereas the latter is specialized to the processing of Nimblegen and Agilent arrays, the former provides all corresponding features for Affymetrix arrays. Data can be read in from Affymetrix CEL-files, or from text files in gff format. Standard quality assessment and data normalization tools are available. St...

A single chromatin immunoprecipitation (ChIP) sample does not provide enough DNA for hybridization to a genomic tiling array. A commonly used technique for amplifying the DNA obtained from ChIP assays is ligation-mediated PCR (LM-PCR). However; using this amplification method, we could not identify Oct4 binding sites on genomic tiling arrays representing 1% of the human genome (ENCODE arrays). ...