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(a) Nucleosomal interdistances within Spd3+-NCP aggregates with a starting NCP concentration of 14 mg mL−1 with various spermidine concentrations. d, distance between NCPs within columnar stacks; aH and aL, lateral distances within either a hexagonal or a liquid organization. Those distances were assessed from x-ray diffraction experiments. (b) Nucleosomal concentrations within Spd3+-NCP aggregates with a starting NCP concentration of 14 mg mL−1, at various spermidine concentrations.
