Monitoring Methylation Changes in Cancer -- Analysis of Protein–DNA Interactions Using Surface Plasmon Resonance -- Identification of Regulatory Elements by Gene Family Footprinting and In Vivo Analysis -- Protein Binding Microarrays for the Characterization of DNA–Protein Interactions -- Accuracy and Reproducibility of Protein–DNA Microarray Technology -- Identification and Characterization of DNA-Binding Proteins by Mass Spectrometry.