TABLE 3.

Activation energy (E_a), correlation time constant (τ₀), and average local field values obtained from the Redfield-Slichter model fitted to R₁ data below 240–250 K

Sample	Ea [kJ/mol]	τ0 [s]	[10−8 T2]
MAP2c	31 ± 2	10−15	32 ± 2
CSD1 (rapid R1)	32 ± 4	10−16	57 ± 4
CSD1 (slow R1)	33 ± 3	—	—
ERD10	32 ± 3	10−16	66 ± 8
BSA	20 ± 2	10−13	23.4 ± 0.7

Correlation time constants could be determined to a precision of one order of magnitude.