
Nucleosome organization in the Tetrahymena genome. (A) Stereotypical nucleosome organization near the 5′ end of genes in a large genomic region. Vertical black arrows represent the TSS, while light purple boxes represent 5′ UTRs. (B) The in vitro nucleosome organization at individual genes resembles in vivo patterns. Diagonal black lines indicate the presence of in vitro nucleosomes at in vivo-like locations. Most genes exhibit a subset of nucleosomes at standard positions in vitro.











