Results 11 to 20 of about 821,958 (335)
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
openaire +2 more sources
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
openaire +2 more sources
Iwr1 directs RNA polymerase II nuclear import [PDF]
RNA polymerase (Pol) II transcribes protein-coding genes in the nucleus of eukaryotic cells and consists of 12 polypeptide subunits. It is unknown how Pol II is imported into the nucleus. Here we show that Pol II nuclear import requires the protein Iwr1 and provide evidence for cyclic Iwr1 function.
Czeko, Elmar
core +7 more sources
Dephosphorylating eukaryotic RNA polymerase II [PDF]
The phosphorylation state of the C-terminal domain of RNA polymerase II is required for the temporal and spatial recruitment of various factors that mediate transcription and RNA processing throughout the transcriptional cycle. Therefore, changes in CTD phosphorylation by site-specific kinases/phosphatases are critical for the accurate transmission of ...
Joshua E, Mayfield +2 more
openaire +2 more sources
Characterization of RNA polymerases from Rous sarcoma virus-induced mouse ascites sarcoma cells. [PDF]
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
In vitro Assessment of RNA Polymerase I Activity
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
Structure of the p53/RNA polymerase II assembly
Liou et al. report a 4.6 Å resolution structure of the human p53/ RNA polymerase II assembly, using single particle cryoelectron microscopy. This study suggests that p53’s functional domains regulate the DNA binding activity of RNA polymerase II ...
Shu-Hao Liou +4 more
doaj +1 more source
A comparative study of DNA-dependent RNA polymerases from rat ascites hepatoma cell nuclei and from rat liver nuclei [PDF]
DNA-dependent RNA polymerases (EC 2.7.7.6) were extracted and partially purified form the nuclei of rat ascites hepatoma cells (AH-130) induced by 4-dimethylaminoazobenzene.
Misumi, Hiromasa
core +1 more source
Genetic dissection of the RNA polymerase II transcription cycle
How DNA sequence affects the dynamics and position of RNA Polymerase II (Pol II) during transcription remains poorly understood. Here, we used naturally occurring genetic variation in F1 hybrid mice to explore how DNA sequence differences affect the ...
Shao-Pei Chou +4 more
doaj +1 more source
Chromatin remodeling by Pol II primes efficient Pol III transcription
The packaging of the genetic material into chromatin imposes the remodeling of this barrier to allow efficient transcription. RNA polymerase II activity is coupled with several histone modification complexes that enforce remodeling.
Carlo Yague-Sanz +6 more
doaj +1 more source

