Identification of α-type subunits of the Xenopus 20S proteasome and analysis of their changes during the meiotic cell cycle |
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| Authors: | Yuka Wakata Mika Tokumoto Ryo Horiguchi Katsutoshi Ishikawa Yoshitaka Nagahama Toshinobu Tokumoto |
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| Affiliation: | (1) Department of Biology and Geosciences, Faculty of Science, National University Corporation Shizuoka University, Shizuoka 422-8529, Japan;(2) CREST Research Project, Japan Science and Technology Corporation, Saitama, Japan;(3) Laboratory of Reproductive Biology, National Institute for Basic Biology, Okazaki 444-8585, Japan |
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| Abstract: | Background The 26S proteasome is the proteolytic machinery of the ubiquitin-dependent proteolytic system responsible for most of the regulated intracellular protein degradation in eukaryotic cells. Previously, we demonstrated meiotic cell cycle dependent phosphorylation of α4 subunit of the 26S proteasome. In this study, we analyzed the changes in the spotting pattern separated by 2-D gel electrophoresis of α subunits during Xenopus oocyte maturation. |
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