UCSC genome browser tracks with examples of IL-2 pDHSs within the Locus Control Region (LCR) within the Rad50 gene which controls the Th2 cytokines Il13, Il4 and Il5, plus IL-2 pDHSs within the Tnfrsf9 and Cish loci. IL-2 pDHSs are highlighted with blue boxes. 