Supplementary Table 1: Overview of cell types and count of uncharacterized *cis*-regulatory elements per cell type
Supplementary Table 2: MPRA tested uncharacterized *cis*-regulatory elements along with control elements with their activity levels
Supplementary Table 3: Reporter assays testing silencer elements along with control elements and their activity levels
Supplementary Table 4: List of primers and gblock sequences used in CRISPR-Cas9 experiments
Supplementary Table 5: Overview of cell types and count of candidate silencer elements per cell type