Computational methodology for ChIP-seq analysis

Chromatin immunoprecipitation coupled with massive parallel sequencing(ChIP-seq) is a powerful technology to identify the genome-wide locations of DNA binding proteins such as transcription factors or modifed histones. As more and more experimental laboratories are adopting ChIP-seq to unravel the transcriptional and epigenetic regulatory mechanisms, computational analyses of ChIP-seq also become increasingly comprehensive and sophisticated. In this article, we review current computational methodology for ChIP-seq analysis, recommend useful algorithms and workfows, and introduce quality control measures at different analytical steps. We also discuss how ChIP-seq could be integrated with other types of genomic assays, such as gene expression profling and genome-wide association studies,to provide a more comprehensive view of gene regulatory mechanisms in important physiological and pathological processes.