Abstract: An automated protein preparation technology that may use magnetic microparticles to isolate proteins in their native state from specific genomic loci of interest via the chromatin to which they are bound is described. After extraction, the targeted proteins may be purified for downstream analysis by quantitative mass spectrometry or ELISA. The identification of DNA-bound proteins, histones and their post-translational modification is of high scientific and pharmaceutical importance due to the role of DNA-binding proteins in the cauzation and development of human disease; in particular, cancer.