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PUP2 | Alpha 5 subunit of the 20S proteasome; involved in ubiquitin-dependent catabolism; human homolog is subunit zeta; Belongs to the peptidase T1A family. (260 aa) | ||||
PRE3 | Beta 1 subunit of the 20S proteasome; responsible for cleavage after acidic residues in peptides. (215 aa) | ||||
PRE2 | Beta 5 subunit of the 20S proteasome; responsible for the chymotryptic activity of the proteasome; Belongs to the peptidase T1B family. (287 aa) |