Results 21 to 30 of about 946,604 (388)

In vitro Assessment of RNA Polymerase I Activity

open access: yesBio-Protocol, 2017
In eukaryotic cells transcriptional processes are carried out by three different RNA polymerases: RNA polymerase I which specifically transcribes ribosomal RNA (rRNA), RNA polymerase II which transcribes protein-coding genes to yield messenger RNAs ...
Marzia Govoni
doaj   +1 more source

Characterization of RNA polymerases from Rous sarcoma virus-induced mouse ascites sarcoma cells. [PDF]

open access: yes, 1979
RNA polymerase was extracted from the Schmidt-Ruppin strain of Rous sarcoma virus (SR-RSV)-induced C3H/He mouse ascites sarcoma cells (SR-C3H). RNA polymerase was separated into RNA polymerases I and II by DEAE-Sephadex chromatography.
Misumi, Hiromasa, Oda, Takuzo
core   +1 more source

The cloned RNA polymerase II transcription factor IID selects RNA polymerase III to transcribe the human U6 gene in vitro [PDF]

open access: yes, 1991
Although the human U2 and U6 snRNA genes are transcribed by different RNA polymerases (i.e., RNA polymerases II and III, respectively), their promoters are very similar in structure.
Hernandez, N.   +3 more
core   +1 more source

RNA Polymerase II Elongation Control [PDF]

open access: yesAnnual Review of Biochemistry, 2012
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
openaire   +3 more sources

Genome-wide control of RNA polymerase II activity by cohesin. [PDF]

open access: yesPLoS Genetics, 2013
Cohesin is a well-known mediator of sister chromatid cohesion, but it also influences gene expression and development. These non-canonical roles of cohesin are not well understood, but are vital: gene expression and development are altered by modest ...
Cheri A Schaaf   +8 more
doaj   +1 more source

Mediator and RNA polymerase II clusters associate in transcription-dependent condensates

open access: yesScience, 2018
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 largest subunit of human RNA polymerase III is closely related to the largest subunit of yeast and trypanosome RNA polymerase III [PDF]

open access: yes, 1997
In both yeast and mammalian systems, considerable progress has been made toward the characterization of the transcription factors required for transcription by RNA polymerase III. However, whereas in yeast all of the RNA polymerase III subunits have been
Hernandez, N., Sepehri, S.
core   +2 more sources

Structural Transition of the Nucleosome during Transcription Elongation

open access: yesCells, 2023
In eukaryotes, genomic DNA is tightly wrapped in chromatin. The nucleosome is a basic unit of chromatin, but acts as a barrier to transcription. To overcome this impediment, the RNA polymerase II elongation complex disassembles the nucleosome during ...
Tomoya Kujirai   +3 more
doaj   +1 more source

Different phosphorylated forms of RNA polymerase II and associated mRNA processing factors during transcription.

open access: yesGenes & Development, 2000
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

Inhibition of post-transcriptional RNA processing by CDK inhibitors and its implication in anti-viral therapy.

open access: yesPLoS ONE, 2014
Cyclin-dependent kinases (CDKs) are key regulators of the cell cycle and RNA polymerase II mediated transcription. Several pharmacological CDK inhibitors are currently in clinical trials as potential cancer therapeutics and some of them also exhibit ...
Jitka Holcakova   +8 more
doaj   +1 more source

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