Aliases for PSME4 Gene
External Ids for PSME4 Gene
Previous GeneCards Identifiers for PSME4 Gene
GeneCards Summary for PSME4 Gene
PSME4 (Proteasome Activator Subunit 4) is a Protein Coding gene. Among its related pathways are Immune System and Signaling by GPCR. GO annotations related to this gene include binding and peptidase activator activity.
UniProtKB/Swiss-Prot for PSME4 Gene
Associated component of the proteasome that specifically recognizes acetylated histones and promotes ATP- and ubiquitin-independent degradation of core histones during spermatogenesis and DNA damage response. Recognizes and binds acetylated histones via its bromodomain-like (BRDL) region and activates the proteasome by opening the gated channel for substrate entry. Binds to the core proteasome via its C-terminus, which occupies the same binding sites as the proteasomal ATPases, opening the closed structure of the proteasome via an active gating mechanism. Component of the spermatoproteasome, a form of the proteasome specifically found in testis: binds to acetylated histones and promotes degradation of histones, thereby participating actively to the exchange of histones during spermatogenesis. Also involved in DNA damage response in somatic cells, by promoting degradation of histones following DNA double-strand breaks.