Volume 20, no. 12, p. 4428-4435, 2000. Figures 1D and 7 are not faithful representations of their original source data and are therefore being retracted. Corrected figures are shown below. Use of the incorrect figures had no effect on the other data or the basic results and conclusions of the paper.
FIG. 1D.
FIG. 7.
Page 4433, legend to Fig. 7, lines 5 and 6: “The open arrowhead marks a supershifted Sox9-enhancer complex by anti-Sox9 antibodies (lane 4)” should read “Anti-Sox9 antibodies reduced Sox9-enhancer complex formation (lane 4).”