Nuclear and non-nuclear roles of the MAP kinase Sty1 on cell cycle, cell polarity and transcription

Living organisms must respond to changes in their environment in order to overcome stress situations. In Schizosaccharomyces pombe, Sty1 MAP kinase is required to survive to a wide range of environmental stresses. The main outcome of Sty1 activation is the regulation of gene expression through the t...

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Detalles Bibliográficos
Autor: Salat Canela, Clàudia
Tipo de recurso: tesis doctoral
Estado:Versión publicada
Fecha de publicación:2020
País:España
Institución:CBUC, CESCA
Repositorio:TDR. Tesis Doctorales en Red
OAI Identifier:oai:www.tdx.cat:10803/670276
Acceso en línea:http://hdl.handle.net/10803/670276
Access Level:acceso abierto
Palabra clave:Fission yeast
Sty1
Cdc42
Cell cycle
Transcription
Quinasa
Llevat
Cicle cel.lular
Transcripció gènica
576
Descripción
Sumario:Living organisms must respond to changes in their environment in order to overcome stress situations. In Schizosaccharomyces pombe, Sty1 MAP kinase is required to survive to a wide range of environmental stresses. The main outcome of Sty1 activation is the regulation of gene expression through the transcription factor Atf1. Nonetheless, Sty1 also participates in other cellular processes both in a stress-dependent and –independent fashion. In this thesis, I give an insight into some nuclear and non-nuclear functions of Sty1. Specifically, I describe the contribution of cell cycle and cell polarity processes on shaping the elongated phenotype of cells lacking Sty1. On the other hand, I define the role of Atf1 phosphorylation on transcription initiation, as well as, the involvement of other regulators.