Schematic of molecular interactions using Pathway Studio, version 4.0, for genes decreased in leukemia samples more than 4-fold below CD4⁺. The central gene is IFN-γ. The dotted lines represent regulation of function between 2 genes. The shape of a given protein is indicative of its functional class as shown in the legend. Also included in the legend is the definition of the lines connecting 2 genes.