Figure 5

Myb proteins do not inhibit the Rel transcriptional activation domain. QT6 quail fibroblasts were transfected with a GAL4-repsonsive reporter gene, a plasmid producing the indicated GAL4-Rel fusion (SG-424 is a GAL DNA-binding domain only control), and a plasmid producing the indicated Myb protein (N-Cla is a control expression vector; DBD is a DNA-binding domain only control). Transcriptional activation was measured as previously described [18]. Error bars indicated standard errors of the mean.