IGFBP-3 R

IGFBP-3 R, also know as TMEM219, is a cell death receptor specific for IGFBP3. IGFBP-3R is expressed on the cell surface, interacts specifically with IGFBP-3 but not other IGFBP species. It activates initiator caspase-8, and mediates IGFBP-3-induced apoptosis in vitro and tumor suppression in vivo.