Histone H2A.Z-containing nucleosomes flank the transcription start sites (TSSs) of active mammalian genes. A new study reveals that histone H2A.Z at the TSS is reduced during S phase, which coincides with its gain at centromeric and subtelomeric regions during M phase and mirrors an expansion of the nucleosome-depleted region, which, surprisingly, is unrelated to transcriptional activity.
- Maxim Nekrasov
- Jana Amrichova
- David J Tremethick
