Table 1. Recruitment of 19S subunits to the proteasome complex calculated as the ratio of normalized intensity of peptide peak to the total input cell extract.

	Enrichment factor
	Untreated	Dox	uPARsi+Dox
ATPase regulatory subunits
PSMC2	10	9	11
PSMC1	19	9	11
PSMC4	12	10	10
PSMC6	6.5	7	6
PSMC3	5	6	5.5
PSMC5	8	7	4
Non ATPase regulatorysubunits
PSMD2	5	4	3.5
PSMD1	10	8.5	6
PSMD3	6	6	4.25
PSMD12	10	9.5	7
PSMD11	5	4.5	4
PSMD6	14	13	8
PSMD7	22	18	5.5
PSMD13	11	10	6
PSMD4	12	8	10
PSMD14	7	8	10
PSMD8	14	15	13