26S proteasome non-ATPase regulatory subunit 11 (PSMD11)

Part of the 26S proteasome, a multiprotein complex involved in the ATP-dependent degradation of ubiquitinated proteins. This complex plays an integral role in the maintenance of protein homeostasis by removing misfolded or damaged proteins, which could impair cellular capabilities, and by removing proteins whose functions are no longer required.

Hence, the proteasome participates in numerous cellular processes, including cell cycle progression, apoptosis, or DNA damage repair. In the complicated, PSMD11 is required for proteasome assembly.