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. 2018 Sep 15;115(8):1552–1560. doi: 10.1016/j.bpj.2018.09.007

Table 1.

Summary of Experimentally Determined Diffusion Parameters for ERES and ER Junctions at Room Temperature and at 37°C, without and with Nocodazole Treatment

RTa (−)b RT (+)c 37°C (−) 37°C (+)
ERES α 0.64 0.56 0.62 0.57
Kα×1sα[× 10−3μm2] 5.50 3.16 7.30 4.37
A 0.43 0.40 0.42 0.39
n 4005 3272 3004 3984
ERJd α 0.51 0.35 0.53 0.33
Kα×1sα[× 10−3μm2] 3.47 3.39 4.79 5.37
A 0.35 0.27 0.35 0.30
n 1900 2291 1075 388

α and Kα denote the diffusion anomaly and the generalized diffusion coefficient, respectively; A and n refer to the asphericity and the number of evaluated trajectories. Data for ER junctions were taken from (26); insignificant changes with respect to the previously stated numerical values are due to a re-evaluation with fixed trajectory length N = 300. Standard errors of the mean were smaller than ±0.01 in all cases. Parameter value changes induced by nocodazole treatment and differences in parameter values between ERES and ER junctions at the same conditions were significant to the 1% level (Kolmogorov-Smirnov as well as Student’s t-test).

a

RT, room temperature.

b

−, without nocodazole treatment.

c

+, with nocodazole treatment.

d

ERJ, ER junction.