protein-containing complex RQC complex ribosome quality control complex 2013-05-31T21:42:43Z rb ribosome-bound quality control complex A multiprotein complex that forms a stable complex with large ribosomal subunits (60S in eukaryotes and 50S in prokaryotes) containing stalled polypeptides and triggers their degradation (ribosomal quality control). In budding yeast, this complex includes Cdc48p, Rkr1p, Tae2p, Rqc1p, Npl4p and Ufd1p proteins. cellular_component GO:1990112