Fig. 6.

Positioning of nucleosomes along 172-α2 DNA. Different nucleosomal positions near the termini that would correspond to r-values between 0 and 0.1 could not be distinguished due to the resolution limit. Therefore, the occurrences of r-values equal to 0 were evenly distributed over the first two bins (white bars). The error of r in the peak range approximately equals the bin size, since an error Δr ∼ 10% could be expected based on the measured standard deviation of the total mononucleosomal fragment length (± 7.7%)