Table II. Average nucleosome length (L_a) following micrococcal nuclease digestion.

	Ethidium bromide			Autoradiogram
	Hmgn1+/+	Hmgn1–/–	Hmgn1–/–/Hmgn1+/+	Hmgn1+/+	Hmgn1–/–	Hmgn1–/–/Hmgn1+/+
La – lane 4a	2.88	2.91	1.01	1.78	2.29	1.29
La – lane 5a	1.42	1.46	1.02	1.66	2.02	1.22
Averageb			1.02 ± 0.01			1.46 ± 0.2

^aLanes from Figure 6.

^bAverage from three different experiments.

L_a, average nucleosome length was calculated as: L_a = Σ_N1–N6 (P_N). Where N1–N6 is the oligonucleosome size (i.e. mono, di) and P_N is the fraction of a particular oligonucleosome size out of the total scan (the region covering mono- to hexa-nucleosomes was scanned).

Statistical significance of the two groups was determined by Student’s t-test, p < 0.01.