Results 1 to 10 of about 991,885 (339)
H3K4me3 regulates RNA polymerase II promoter-proximal pause-release
Trimethylation of histone H3 lysine 4 (H3K4me3) is associated with transcriptional start sites and has been proposed to regulate transcription initiation^ 1 , 2 .
Hua Wang +6 more
semanticscholar +1 more source
RNA polymerase II at initiation [PDF]
RNA polymerase II (RNAPII) is the enzyme responsible for synthesis of all mRNA in higher cells. As the central component of the eukaryotic transcription machinery, RNAPII is the final target of regulatory pathways that are ultimately responsible for cellular development, differentiation, and metabolic control.
Francisco J. Asturias, John L. Craighead
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A Movie of RNA Polymerase II Transcription [PDF]
We provide here a molecular movie that captures key aspects of RNA polymerase II initiation and elongation. To create the movie, we combined structural snapshots of the initiation-elongation transition and of elongation, including nucleotide addition, translocation, pausing, proofreading, backtracking, arrest, reactivation, and inhibition.
Cheung, A.C.M., Cramer, P.
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The Mediator complex as a master regulator of transcription by RNA polymerase II
The Mediator complex, which in humans is 1.4 MDa in size and includes 26 subunits, controls many aspects of RNA polymerase II (Pol II) function. Apart from its size, a defining feature of Mediator is its intrinsic disorder and conformational flexibility,
William F. Richter +3 more
semanticscholar +1 more source
RNA Polymerase II: Just Stopping By [PDF]
In this issue of Cell, Guenther et al. (2007) analyze the presence of chromatin marks and RNA polymerase at transcription start sites in the human genome. Their results reveal that many "inactive" genes harbor histone marks associated with active transcription at their 5' ends and that although these genes initiate transcription, they do not generate ...
Dirk Schübeler, Matthew C. Lorincz
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Structure of an inactive RNA polymerase II dimer [PDF]
Abstract Eukaryotic gene transcription is carried out by three RNA polymerases: Pol I, Pol II and Pol III. Although it has long been known that Pol I can form homodimers, it is unclear whether and how the two other RNA polymerases dimerize.
Shintaro Aibara +2 more
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RNA polymerase II speed: a key player in controlling and adapting transcriptome composition
RNA polymerase II (RNA Pol II) speed or elongation rate, i.e., the number of nucleotides synthesized per unit of time, is a major determinant of transcriptome composition.
Lisa Muniz, Estelle Nicolas, D. Trouche
semanticscholar +1 more source
RNA Polymerase II Elongation Control [PDF]
Regulation of the elongation phase of transcription by RNA polymerase II (Pol II) is utilized extensively to generate the pattern of mRNAs needed to specify cell types and to respond to environmental changes. After Pol II initiates, negative elongation factors cause it to pause in a promoter proximal position. These polymerases are poised to respond to
Qiang Zhou, Tiandao Li, David H. Price
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Mediator and RNA polymerase II clusters associate in transcription-dependent condensates
Phase separation and gene control Many components of eukaryotic transcription machinery—such as transcription factors and cofactors including BRD4, subunits of the Mediator complex, and RNA polymerase II—contain intrinsically disordered low-complexity ...
W. Cho +6 more
semanticscholar +1 more source
The activities of several mRNA processing factors are coupled to transcription through binding to RNA polymerase II (Pol II). The largest subunit of Pol II contains a repetitive carboxy-terminal domain (CTD) that becomes highly phosphorylated during ...
P. Komarnitsky, E. Cho, S. Buratowski
semanticscholar +1 more source

