Nature 404, 298–302 (2000).

In this Letter, we numbered some nucleotides for the upstream region of the reelin gene incorrectly. The Reelin-luc construct contains an upstream region of the reelin gene corresponding to nucleotides 157700–158620 of human BAC clone AC002067, instead of nucleotides 3700–4620. This does not affect any of the results or conclusions of the paper. We thank A. M. Goffinet, D. Grayson, K. Mendra and T. Curran for alerting us to this mistake.