5,6-Dichlorobenzimidazole 1-beta-D-ribofuranoside (E2914-GRP)

5,6-Dichlorobenzimidazole riboside(DRB) is a nucleoside analog that inhibits several carboxyl-terminal domain (CTD) kinases including casein kinase II and CDKs. It trigger p53-dependent apoptosis of human colon adenocarcinoma cells without inducing genotoxic stress to healthy cells.