Medical Sciences. In the article “CREB binding protein is a required coactivator for Smad-dependent, transforming growth factor β transcriptional responses in endothelial cells” by James N. Topper, Maria R. DiChiara, Jonathan D. Brown, Amy J. Williams, Dean Falb, Tucker Collins, and Michael A. Gimbrone, Jr., which appeared in number 16, August 4, 1998, of Proc. Natl. Acad. Sci. USA 95, 9506–9511), the following correction should be noted. The graphics, but not the corresponding legends, of Figs. 4 and 6 have been inadvertantly transposed. The corrected figures and corresponding legends are shown below.

Figure 4

Smads 2 and 4 can interact with CBP in vivo. Cos-7 cells were transfected with the indicated combinations of epitope-tagged activated TBF-β type-1 receptor, Smad expression construct, or empty expression vector. The cells were then lysed and immunoprecipitated (more ...)

Figure 6

12S E1A inhibits the association of activated Smad2 and Smad4 with CBP in vivo. Cos-7 cells were transfected with expression constructs expressing epitope-tagged (HA, Flag) versions of Smad2 and Smad4 and the indicated combinations of activated TBF-β (more ...)