Ferritin correlation time

Ferritin The first correlation time is larger at 5°C (1.95 ns) than at 37°C (0.72 ns), as would be a rotational correlation time, a diffusion time or an exchange time. Nevertheless, neither the rotation time (0.19 ps at 37°C) nor the diffusion time (12.8 ns at 37°C) corresponds to this value. The first dispersion was therefore interpreted as arising from a proton exchange. The correlation time of the second dispersion (23 ns at 37° C) also decreases with temperature, and is about 8 times shorter than the rotation time. Nevertheless, it is closer to the value of the diffusion time. The second dispersion was therefore assigned to proton exchange or diffusion. 

Correlation Times Calculated lrom the Fittings oe the Longitudinal NMRD Proeiles oe Apoeerritin, Ferritin, and Akaganeite Particles Solutions... 

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