function:Acts as a regulatory subunit of the 26S proteasome which is involved in the ATP-dependent degradation of ubiquitinated proteins.,similarity:Belongs to the proteasome subunit S9 family.,similarity:Contains 1 PCI domain.,subunit:Component of the PA700 complex.,
Nucleus . Cytoplasm, cytosol .
Highly expressed in embryonic stem cells (ESCs). Expression decreases as ESCs differentiate.