Interacción entre la ARN polimerasa II y elementos de la maquinaria de degradación de los ARNm en la levadura Saccharomyces cerevisiae
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2024-09-05
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[ES] La transcripción y degradación del ARNm son dos procesos indispensables para la vida. Estos procesos están altamente relacionados entre sí, ya que elementos propios de cada uno de ellos pueden actuar como
factores reguladores de la transcripción-degradación del ARNm. Algunos de estos factores relevantes para
la coordinación transcripción-degradación del ARNm son la subunidad Rpb4 de la ARN pol II (enzima encargada de la transcripción en eucariotas), Ccr4, una deadenilasa del ARNm, Xrn1, una exonucleasa del
ARNm que funciona en sentido 5’3’ y Dhh1, una helicasa de ARN. Basados en la hipótesis de que Rpb4 puede ser un elemento central en la coordinación de estos factores, se estudiará la relación funcional entre Rpb4, Xrn1, Ccr4 y Dhh1 para regular los procesos de transcripción y degradación del ARNm.
[EN] Transcription and mRNA degradation are two essential processes for the presence of life. These processes are highly related, as specific elements of each one of them can take part in the transcription-degradation regulation. Some of the relevant factors for the transcription-degradation coordination are the subunit Rpb4 of the RNA pol II (enzyme responsible for mRNA transcription in eukaryotes), Ccr4, an mRNA deadenylase, Xrn1, a 5’→3’ mRNA exonuclease and Dhh1, an RNA helicase. Based on the hypothesis that Rpb4 may be a central element in the coordination of these factors, a detailed analysis of these proteins will take place in order to understand the functional relationship between Rpb4, Xrn1, Ccr4, and Dhh1 in regulating mRNA transcription and degradation processes.
[EN] Transcription and mRNA degradation are two essential processes for the presence of life. These processes are highly related, as specific elements of each one of them can take part in the transcription-degradation regulation. Some of the relevant factors for the transcription-degradation coordination are the subunit Rpb4 of the RNA pol II (enzyme responsible for mRNA transcription in eukaryotes), Ccr4, an mRNA deadenylase, Xrn1, a 5’→3’ mRNA exonuclease and Dhh1, an RNA helicase. Based on the hypothesis that Rpb4 may be a central element in the coordination of these factors, a detailed analysis of these proteins will take place in order to understand the functional relationship between Rpb4, Xrn1, Ccr4, and Dhh1 in regulating mRNA transcription and degradation processes.