https://www.ncbi.nlm.nih.gov/Structure/pdb/4QXJ
4QXJ: yCP beta5-M45A mutant in complex with the epoxyketone inhibitor ONX 0914
Probable proteasome subunit alpha type-7Proteasome subunit alpha type-1Proteasome subunit alpha type-2Proteasome subunit alpha type-3Proteasome subunit alpha...