SRX4082374 SRA703806 H3K27me3_wt_l2_rep1;_Caenorhabditis_elegans;_ChIP-Seq H3K27me3_wt_l2_rep1;_Caenorhabditis_elegans;_Ch... H3K27me3|L2 larvae H3K27me3 N2|L2 larvae N2 ChIP-Seq