UCSC genome browser tracks showing ChIP-Seq and DNase-Seq at the LCR within the Rad50 gene which controls the Il4/Il13/Il5 Th2 cytokine locus, and also Il17a, Il12rb2 and Tbx21. The grey boxes indicate IL-2 pDHSs which bind STAT5 in Th0 cells and other STAT proteins in other T cell lineages. 