NCIt definition : An enzyme complex that mediates the ubiquitination and subsequent proteasomal degradation
of target proteins and is comprised of four core components, a cullin protein that
serves as a scaffold, a substrate receptor that recognizes the target protein, an
adaptor protein that bridges the substrate receptor to the cullin and a RING finger
E3 ubiquitin-protein ligase which binds to the cullin protein, recruits an E2 ubiquitin
conjugating enzyme to the complex and promotes the transfer of ubiquitin from the
E2 enzyme to the substrate.;