Activation of the transcription factor Gli1 and the Sonic hedgehog signalling pathway in skin tumours (vol 389, pg 876, 1997)

Nature 389, 876–881 (1997) The contents summary page in the issue of 23 October included an item on this Letter that was somewhat misleading. A more accurate summary reads: “Patients with basal cell nevus syndrome develop basal cell carcinomas (BCCs) early in life and carry mutations in the Patched gene, which encodes a receptor for the Sonic hedgehog ligand.