Posttranscriptional regulation of gene networks by GU-rich elements and CELF proteins.
Posttranscriptional regulation of gene networks by GU-rich elements and CELF proteins.
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DOI:
10.4161/rna.7056
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发表时间:
2008-10
期刊:
影响因子:
4.1
通讯作者:
Bohjanen, Paul R.
中科院分区:
文献类型:
--
作者:
Vlasova, Irina A.;Bohjanen, Paul R.
关键词:
GU-rich elements found in pre-mRNA and mRNA transcripts play diverse roles in the control of gene expression by regulating mRNA stability, translation and pre-mRNA processing. Regulatory GU-rich elements are highly conserved throughout evolution, and play major roles in development in diverse species from worms to mammals. The conservation of the GU-rich element allowed it to be identified as a sequence that was enriched in the 3′ UTR of human transcripts that exhibited rapid mRNA decay. This element functions, at least in part, as a molecular target for members of the CELF family of RNA-binding proteins, which recruit other components of the cellular posttranscriptional gene regulatory machinery to the transcript. Depending on the context, binding to GU-rich sequences by CELF proteins direct a variety of posttranscriptional regulatory events, including deadenylation, mRNA decay, translation or pre-mRNA processing. Thus, GU-rich elements and CELF proteins serve multiple functions in gene expression regulation and define an important evolutionarily conserved posttranscriptional regulatory network.
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