4-NQO	UV-mimic 4-nitroquinoline 1-oxide
CAT	C-terminal addition of alanine and threonine
CP	Proteasome catalytic core particle
DUB	Deubiquitinating enzyme
E1	Ubiquitin activating enzyme
E2	Ubiquitin conjugating enzyme
E3	Ubiquitin ligase
HECT	Homologous to the E6-AP carboxy terminus
MMS	Methyl methanesulfonate
NGD	No-Go decay
NRD	Non-functional rRNA decay
PTM	Post-translational modification
RING	Really interesting new gene
ROS	Reactive oxygen species
RP	Proteasome regulatory particle
RQC	Ribosome-associated protein quality control
RTU	Redox control of translation by ubiquitin
UBA	Ubiquitin associated domain
UBD	Ubiquitin binding domain
UIM	Ubiquitin interacting motif
UPR	Unfolded protein response
UPS	Ubiquitin proteasome system