HEADER HYDROLASE 31-DEC-69 7W3B TITLE Structure of USP14-bound human 26S proteasome in substrate-engaged TITLE 2 state ED5_USP14 COMPND MOL_ID: 7; COMPND 2 MOLECULE: Proteasome subunit alpha type-6; COMPND 3 CHAIN: G, g; COMPND 4 EC: 3.4.25.1; COMPND 5 ENGINEERED: YES; EXPDTA ELECTRON MICROSCOPY