Project description:Here, we showed that acute lost H3K4me3 induces rapid reduction in global transcription with progressively increase in magnitude over the time-course cooccurrence with lost all H3K4 methylations. To further determine the effects of COMPASS subunits degradation on H3K4 methylations occupancies genome-wide, we performed time-course spike-in chromatin immunoprecipitation and sequencing (ChIP-seq, also known as ChIP-Rx) analysis in both degron systems.
Project description:Here, we showed that acute lost H3K4me3 induces rapid reduction in global transcription with progressively increase in magnitude over the time-course cooccurrence with lost all H3K4 methylations. To further determine the effects of COMPASS subunits degradation on H3K4 methylations occupancies genome-wide, we performed time-course spike-in chromatin immunoprecipitation and sequencing (ChIP-seq, also known as ChIP-Rx) analysis in both degron systems.
Project description:We measured the the dwell time of existed paused RNAPII at the promoter by mammalian native elongating transcript sequencing (mNET-seq). We found a median RNAPII half-life of 5.3 min at protein-coding genes in DMSO pre-treated control mESCs, whereas the RNAPII half-life at these genes significantly slowdown to 8.96 min when pre-treated with Auxin in the DPY30-mAID degron cell. The data suggested that loss H3K4me3 directly slows down the release of paused RNAPII throughout genes.
