Scientific Reports 3, Article number: 2862 (2013); Published: 7 October 2013; Updated: 15 January 2014

In the original version of this Article the author M. Nakamura was incorrectly listed as having a current address of “National Institute for Basic Biology, Okazaki 444-8585, Japan”. This is the current address for the author M. Nakamoto. This has been corrected in the HTML and PDF versions of this Article.

In addition, the Supplementary Movies that accompany this study were omitted from the original version of this Article.