FIGURE 9.

Summary of the results presented in this paper. The position of nucleosomes −2, −1, and +1 is given at four different times after TPA addition. The partial eviction of nucleosomes is symbolized by increasing the transparency of the ovals. The location of transcription factors serum-response factor, ELK1, SP1, and CREB and the phosphorylation of the latter is based on our previous results (28). The tentative positions of the BRM-containing remodeler and the preinitiation complex (PIC) are also shown. The transcriptional rate is symbolized by placing more or less arrows over the RNA polymerase II (pol II) molecule. The relative level of histone modifications is given according to the color code depicted at the top.