CD8+ splenic T cells from wild-type and cTKO mice were isolated by flow cytometry. ChIP against H3K27me3 (1 μg; Millipore, 07–449) and H3K36me2 (1 μg; Millipore, 07–274) and sequencing library preparation was performed exactly as previously described26 (link). Adapters were trimmed using BBTools28 (link). Alignment to mm10 was performed using Bowtie221 (link) and duplicate reads were marked using Picard and removed using SAMtools. Signal normalization between samples was performed using THOR30 (link). ChIP-seq signal intensity was calculated for chromatin states using GRanges and custom R scripts (Supplementary File 1).