Retraction: CLASP-mediated cortical microtubule organization guides PIN polarization axis

Nature 495, 529–533 (2013); doi:10.1038/nature11980 After re-examination of this Letter, concerns with some of the reported data were raised. It was found that two confocal images were near-identical in panels of Figure 3 and two confocal images were re-used in panels of Figure 4, and that some gel images were inappropriately generated by cutting and pasting of non-adjacent bands.