Eileen Furlong and colleagues report the development and application of BiTS-ChIP (batch isolate tissue specific chromatin immunoprecipitation), in which a tagged nuclear protein is expressed in developing cells of interest. They apply this method to investigate six chromatin markers and RNA Pol II occupancy in mesodermal cells in developing Drosophila embryos and find that histone modifications and Pol II occupancy can predict enhancer activity.
- Stefan Bonn
- Robert P Zinzen
- Eileen E M Furlong