Here the authors digested chromatin with DNA fragmentation factor (DFF) prior to chromatin immunoprecipitation (DFF-ChIP) to depict transcription complex interactions with neighboring nucleosomes in cells. Applying this method to human cytomegalovirus (HMCV)-infected cells, they find that the viral genome is underchromatinized, leading to fewer transcription complex interactions with nucleosomes.
- Benjamin M. Spector
- Mrutyunjaya Parida
- David H. Price