Mitosis exit regulation by Cdc5 and PP2A-Cdc55
In this thesis we studied the role of PP2ACdc55 in the cytokinesis regulation and the contribution of Cdc5 kinase in the mitosis exit using budding yeast as model. Previously, it was suggested a putative PP2ACdc55 role in cytokinesis based on the elongated phenotype in absence of Cdc55. However, the...
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| Formato: | tesis doctoral |
| Estado: | Versión publicada |
| Fecha de publicación: | 2019 |
| País: | España |
| Recursos: | CBUC, CESCA |
| Repositorio: | TDR. Tesis Doctorales en Red |
| OAI Identifier: | oai:www.tdx.cat:10803/668051 |
| Acesso em linha: | http://hdl.handle.net/10803/668051 |
| Access Level: | acceso abierto |
| Palavra-chave: | Citocinesis IPCs Cdc5 Salida de mitosis Mitotic exit Cytokinesis PP2A Cdc55 576 |
| Resumo: | In this thesis we studied the role of PP2ACdc55 in the cytokinesis regulation and the contribution of Cdc5 kinase in the mitosis exit using budding yeast as model. Previously, it was suggested a putative PP2ACdc55 role in cytokinesis based on the elongated phenotype in absence of Cdc55. However, the PP2ACdc55 function during cytokinesis and its direct targets were not identified. In this thesis, we demonstrated that PP2ACdc55 regulates the IPC’s phosphorylation and their residence time at the bud neck. In addition, we showed that PP2ACdc55 coordinates actomyosin ring (AMR) contraction with septa formation. As a second objective, we analyzed the Net1 residues to be phosphorylated by Cdc5 kinase contributing to the Cdc14 release from the nucleolus and mitotic exit progression. |
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