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. 1998 Nov 24;95(24):14173–14178. doi: 10.1073/pnas.95.24.14173

Table 1.

Comparison of mass per unit length of chicken erythrocyte chromatin fibers predicted from EC-M images with neutron-scattering and scanning-transmission EM (STEM) measurements (56)

Ionic strength, (M+) Mean linker entry–exit angle from EC-M images Mass per length from neutron-scattering and STEM data (56) Mass per length from models based on EC-M data
5 mM 85° 1.5 1.6
15 mM 45° 3.2 3.0
80 mM 35° 6.0 5.9