Nature 449, 682–688 (2007)

In Fig. 4e of this Article, the two E-box sequences were inadvertently exchanged. E-box 1, which is near the stem-loop (at -313 bp), should be CACTTG instead of CACCTG, and E-box 2 (at -2,422 bp), which is distal to the stem-loop, should be CACCTG instead of CACTTG.