Katie was a graduate student in the laboratory and defined the regions of the IL-2 promoter essential for its activity. She purifed jun D as a regulator of IL-2 (Ullman Science 1990) and is now an Assistant Professor at the University of Utah where she is studying the mechanisms underlying nuclear import and export. .Katie can be reached at: Ullman@hci.utah.edu. To read more about what she is doing, go to her web page at: www.hci.utah.edu/ullmanlab