Influence of SUMOylation on chromatin structure in hIPSCs (ChiPS4) assessed by time-resolved ATAC-seq in response to ML792 treatment. Influence of SUMOylation on chromatin structure in hIPSCs (ChiPS4) assessed by time-resolved ATAC-seq in response to ML792 treatment

SUMOylation is thought to regulate chromatin structure and accessibility thus affecting gene expression. In order to assess these potential roles of SUMOylation in human pluripotent stem cells, ChiPS4 cells were treated with ML792 (selective SUMO E1 inhibitor) or DMSO (vehicle control) for the following times: 4, 8, 24 and 48h or left untreated for 48h. At each time point samples were collected for western blotting (control for the efficacy of treatment), RNA-seq (total RNA extracted using RNeasy Mini Kit) and ATAC-seq (using Omni-ATAC protocol, 3 replicates for each time point). Samples were further used for library preparation and sequenced using the Illumina NovaSeq 6000 S4.