scholarly journals Phosphorylation-Regulated Binding of RNA Polymerase II to Fibrous Polymers of Low-Complexity Domains

Cell ◽  
2014 ◽  
Vol 156 (1-2) ◽  
pp. 374 ◽  
Author(s):  
Ilmin Kwon ◽  
Masato Kato ◽  
Siheng Xiang ◽  
Leeju Wu ◽  
Pano Theodoropoulos ◽  
...  
Cell ◽  
2013 ◽  
Vol 155 (5) ◽  
pp. 1049-1060 ◽  
Author(s):  
Ilmin Kwon ◽  
Masato Kato ◽  
Siheng Xiang ◽  
Leeju Wu ◽  
Pano Theodoropoulos ◽  
...  

2016 ◽  
Vol 428 (12) ◽  
pp. 2607-2622 ◽  
Author(s):  
Célia Jeronimo ◽  
Pierre Collin ◽  
François Robert

2018 ◽  
Author(s):  
M. Boehning ◽  
C. Dugast-Darzacq ◽  
M. Rankovic ◽  
A. S. Hansen ◽  
T. Yu ◽  
...  

The carboxy-terminal domain (CTD) of RNA polymerase (Pol) II is an intrinsically disordered low-complexity region that is critical for pre-mRNA transcription and processing. The CTD consists of hepta-amino acid repeats varying in number from 52 in humans to 26 in yeast. Here we report that human and yeast CTDs undergo cooperative liquid phase separation at increasing protein concentration, with the shorter yeast CTD forming less stable droplets. In human cells, truncation of the CTD to the length of the yeast CTD decreases Pol II clustering and chromatin association whereas CTD extension has the opposite effect. CTD droplets can incorporate intact Pol II and are dissolved by CTD phosphorylation with the transcription initiation factor IIH kinase CDK7. Together with published data, our results suggest that Pol II forms clusters/hubs at active genes through interactions between CTDs and with activators, and that CTD phosphorylation liberates Pol II enzymes from hubs for promoter escape and transcription elongation.


2006 ◽  
Vol 73 ◽  
pp. 85-96 ◽  
Author(s):  
Richard J. Reece ◽  
Laila Beynon ◽  
Stacey Holden ◽  
Amanda D. Hughes ◽  
Karine Rébora ◽  
...  

The recognition of changes in environmental conditions, and the ability to adapt to these changes, is essential for the viability of cells. There are numerous well characterized systems by which the presence or absence of an individual metabolite may be recognized by a cell. However, the recognition of a metabolite is just one step in a process that often results in changes in the expression of whole sets of genes required to respond to that metabolite. In higher eukaryotes, the signalling pathway between metabolite recognition and transcriptional control can be complex. Recent evidence from the relatively simple eukaryote yeast suggests that complex signalling pathways may be circumvented through the direct interaction between individual metabolites and regulators of RNA polymerase II-mediated transcription. Biochemical and structural analyses are beginning to unravel these elegant genetic control elements.


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