Genomic regulation of transcription and RNA processing by the multitasking Integrator complex.
Genomic regulation of transcription and RNA processing by the multitasking Integrator complex.
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DOI:
10.1038/s41580-022-00534-2
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发表时间:
2023-03
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--
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--
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In higher eukaryotes, fine-tuned activation of protein-coding genes and many non-coding RNAs (ncRNAs) pivots around the regulated activity of RNA polymerase II (Pol II). The Integrator complex is the only Pol II-associated large multi-protein complex that is metazoan-specific and has therefore been understudied for years. Integrator comprises at least 14 subunits, which are grouped into distinct functional modules. The phosphodiesterase activity of the core catalytic module is co-transcriptionally directed against several RNA species, including long non-coding RNAs (lncRNAs), U small nuclear RNAs (U snRNAs), PIWI-interacting RNAs (piRNAs), enhancer RNAs (eRNAs), and nascent pre-mRNAs. Processing of ncRNAs by Integrator is essential for their biogenesis, and at protein-coding genes Integrator is a key modulator of Pol II promoter-proximal pausing and transcript elongation. Recent studies have identified an Integrator-specific protein phosphatase 2A (PP2A) module, which targets Pol II and other components of the basal transcription machinery. In this Review, we discuss how the activity of Integrator regulates transcription, RNA processing, chromatin landscape, and DNA repair. We also discuss the diverse roles of Integrator in development and tumorigenesis.
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影响因子:
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作者:
Core LJ;Waterfall JJ;Gilchrist DA;Fargo DC;Kwak H;Adelman K;Lis JT
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DOI:
10.15252/embj.2020105565
发表时间:
2021-03-01
期刊:
The EMBO journal
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DOI:
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发表时间:
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期刊:
Science (New York, N.Y.)
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