Acts as a chaperone during the assembly of the 26S proteasome, specifically of the base subcomplex of the PA700/19S regulatory complex (RC). In the initial step of the base subcomplex assembly is part of an intermediate PSMD5:PSMC2:PSMC1:PSMD2 module which probably assembles with a PSMD10:PSMC4:PSMC5:PAAF1 module followed by dissociation of PSMD5.Store at 4°C or -20°C long term. Avoid repeated freeze / thaw cycles. Store undiluted. *   http://www.creative-diagnostics.com/Anti-PSMD5-PAb-201622-147.htm