This genomic sequence was predicted to be a transcriptional regulatory region based on chromatin state analysis from the ENCODE (ENCyclopedia Of DNA Elements) project. The major subregion was validated as an active enhancer by the ChIP-STARR-seq massively parallel reporter assay in naive and primed human embryonic stem cells, where it is marked by the H3K4me1 histone modification. Another subregion was validated as an enhancer by Sharpr-MPRA (Systematic high-resolution activation and repression profiling with reporter tiling using massively parallel reporter assays) in HepG2 liver carcinoma cells (group: HepG2 Activating non-DNase unmatched - State 20:ReprD, Polycomb repression w. Duke DNase/promoter and conservation enriched). [provided by RefSeq, Jan 2023]