Nat. Med. 13, 486–497 (2007); published online 1 April 2007; corrected after print 6 December 2011

In the version of this article initially published, lanes from the original blot shown in Figure 2b (NIZ and IZ samples, blotting for 55-kDa Kir2.1 and GAPDH) were rearranged in the published figure. The two lanes at the far right of the published blot were on the far left of the original blot, so that the sequence of the lanes in the original blot was as follows (from left to right): IZ (WT miR-1 + AMO-1), IZ (MT miR-1), NIZ, IZ, IZ (AMO-1), IZ (WT miR-1). We have added white space to indicate that the blot is not continuous in the HTML and PDF versions of the article.