Cxxc1 specifically regulates the expression of genes that are suppressed during the early phase and reactivated during the late phase.
(A) The average tag count of each peak of ATAC-seq for differentiating Th1 or Th2 cells. Data from Cxxc1fl/fl WT or Cxxc1-deficient (Cxxc1fl/fl ER-Cre+) cells are shown for each group. WT data are adapted from Fig. 1 D. (B) The Venn diagrams display the overlap between the genes belonging to group 4 and Cxxc1-bound genes in Th1 and Th2 cells. (C and D) Coregulation transcriptome networks created based on two RNA-seq datasets (i.e., in naive [0 h] and the differentiation process [48 h] of WT cells) are shown. All Cxxc1-bound genes in Th1 (C; n = 1,684) and Th2 (D; n = 3,120) cells are shown. Dashed ellipsis (added manually) indicates genes down-regulated in the absence of Cxxc1. The node color indicates the gene expression levels at each time point (0, 48, 96, and 120 h) based on Z-scores. FPKM, fragments per kilobase of exon per million reads mapped. (E) A time-course analysis of the expression of Cxxc1-bound group 4 genes in WT, Cxxc1-deficient (left), and WT cells that received prolonged TCR/coreceptor stimulation (right). Lines denote the median, and shaded areas represent the 95% confidence intervals.