The testis-specific proteasome subunit Prosalpha6T of D. melanogaster is required for individualization and nuclear maturation during spermatogenesis.

Abstract excerpt

Most regulated proteolysis in eukaryotes is carried out by the 26S proteasome. This large, multisubunit complex comprises a catalytic core particle (20S proteasome) and a regulatory particle (19S regulator) capping each end. In Drosophila, about a third of the 32 proteasome subunits are found to have testis-specific isoforms, encoded by paralogous genes. Here, we characterize in detail the spermatogenic...

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