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Correction for Yago et al., J. Cell Biol. 166 (6) 913-923.
Published 14 March 2005. doi:10.1083/jcb.200403144021805c
The Rockefeller University Press, 0021-9525 $8.00
JCB, Volume 168, Number 6, 975-975
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Correction

Tadayuki Yago, Jianhua Wu, C. Diana Wey, Arkadiusz G. Klopocki, Cheng Zhu, and Rodger P. McEver

Vol. 166, No. 6, September 13, 2004. Pages 913–923.

The velocities of microspheres and neutrophils rolling on or freely moving above the flow chamber floor plotted in Figs. 2 and 4 should be reduced by a factor of 2.25. The error was caused by improper calibration of the camera magnification used for distance measurements (1 pixel = 0.278 µm instead of the originally calculated 0.625 µm). The recalculated velocities are shown below. The corrected velocities of freely flowing microspheres in the new Fig. 4 agree with theoretical predictions (Goldman, A.J., R.G. Cox, and H. Brenner. 1967. Chem. Eng. Sci. 22:653–660). The acceleration value used to set the threshold for rolling step analysis (p. 921) should also be reduced by 2.25, but this does not change the rolling step data in Figs. 5–7. We thank Dr. Daniel Hammer (University of Pennsylvania, Philadelphia, PA) for bringing this error to our attention.



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This Article
Right arrow Full Text (PDF, 523K)
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