What happens to histones during transcription is not well understood. Atomic force microscopy snapshots of RNA polymerase II (Pol II)-nucleosome complexes before, during and after transcription show the presence of looped transcriptional intermediates. In addition, a fraction of transcribed histones are remodeled to hexasomes, and the size of this fraction depends on the elongation rate of Pol II.
- Lacramioara Bintu
- Marta Kopaczynska
- Carlos Bustamante
