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• W2897530414 abstract "The two major isoforms of the profilin (Pfn) family of proteins in mammals are Pfn1 and Pfn2. Pfn1 is a universal actin cytoskeletal regulator, while Pfn2 is an actin binding protein and mediator of synapse architecture, specific to neural tissues. However, it has recently been suggested that Pfn2 is also widely distributed in various tissues and involved in numerous cellular events as well as cytoskeletal regulation. In our previous study, we showed that Pfn1 is regulated by carboxyl terminus of Hsc70-Interacting Protein (CHIP) via an ubiquitin (Ub) proteasome system; although, the mechanism of regulation of Pfn2 is unknown. In this report, we demonstrate that Pfn2 is heavily ubiquitinated via differential Ub-linkages for degradation or as a regulatory signal. We also show that cellular inhibitor of apoptosis 1 (cIAP1) rather than CHIP, functions as an E3 ligase that targets Pfn2 for proteasomal degradation. Finally, we observed that Pfn2 levels, regulated by cIAP1, affected intracellular levels of reactive oxygen species. These results may provide a regulatory mechanism for cellular function of Pfn2 in various tissues." @default.
• W2897530414 created "2018-10-26" @default.
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• W2897530414 date "2018-11-01" @default.
• W2897530414 modified "2023-10-17" @default.
• W2897530414 title "Ubiquitin-proteasome dependent regulation of Profilin2 (Pfn2) by a cellular inhibitor of apoptotic protein 1 (cIAP1)" @default.
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• W2897530414 doi "https://doi.org/10.1016/j.bbrc.2018.10.115" @default.
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