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Component of the spermatoproteasome, a proteasome specifically found in testis that promotes acetylation-dependent degradation of histones, thereby participating actively to the exchange of histones during spermatogenesis. The proteasome is a protein complexe that degrades unneeded or damaged proteins by proteolysis, a chemical reaction that breaks peptide bonds. Required for 20S core proteasome assembly, essential for the degradation of meiotic proteins RAD51 and RPA1 at late prophase I and the progression of meiosis I during spermatogenesis. Localizes to the synaptonemal complex, a 'zipper'-like structure that holds homologous chromosome pairs in synapsis during meiotic prophase I. [UniProt]
2410072D24Rik; proteasome (prosome, macropain) subunit, alpha type, 8; proteasome 20S subunit alpha 8; proteasome alpha 8 subunit; proteasome subunit alpha 8; proteasome subunit alpha type 7; proteasome subunit alpha type 7-like protein variant 1; proteasome subunit alpha type-7-like; Proteasome subunit alpha-type 7-like; Proteasome subunit alpha-type 8; psma7; PSMA7L; PSMA8; RGD1311659; wu:fk28c01; zgc:77139
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