Table 1. The parameters of the hemiknot DNA structures with large loops.

	Arm 1	Arm 2	Loop size	Arm 1:arm 2 ratio	Loop:arms ratio
Experimental values	37.3 ± 5.7 nm	50.5 ± 8.1 nm	48.1 ± 7.5 nm	0.74 ± 0.18	0.54 ± 0.12
Expected from the sequence	170 bp	215 bp	188 bp	0.79	0.49
	44.4 nma	56 nma	49.1 nma

^aThe conversion factor from base pairs to nanometers (0.26) was calculated from the AFM length measurements of a linear 573 bp fragment.