Figure 2.

Dependency of transcription rates on histone acetylation levels (ac) after controlling for confounding effects. (a) Transcription rates versus intergenic H3K9 and K14 acetylation levels controlling for H4 acetylation levels. (b) Transcription rates versus intergenic H4 acetylation levels controlling for H3K9 and K14 acetylation levels. (c) Same as (a) except that coding region histone acetylation data are used. (d) Same as (b) except that coding region histone acetylation data are used. All data are log-transformed. Genes are sorted by transcription levels. A sliding smoothing window of 20 genes is applied to the transcription rates and histone acetylation data.