Results 21 to 30 of about 811,464 (309)

A remodeled RNA polymerase II complex catalyzing viroid RNA-templated transcription.

open access: yesPLoS Pathogens, 2022
Viroids, a fascinating group of plant pathogens, are subviral agents composed of single-stranded circular noncoding RNAs. It is well-known that nuclear-replicating viroids exploit host DNA-dependent RNA polymerase II (Pol II) activity for transcription ...
Shachinthaka D Dissanayaka Mudiyanselage   +5 more
doaj   +1 more source

Structure of the p53/RNA polymerase II assembly

open access: yesCommunications Biology, 2021
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

MDC1 maintains active elongation complexes of RNA polymerase II

open access: yesCell Reports, 2023
Summary: The role of MDC1 in the DNA damage response has been extensively studied; however, its impact on other cellular processes is not well understood.
George Pappas   +14 more
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

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

Genetic dissection of the RNA polymerase II transcription cycle

open access: yeseLife, 2022
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

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   +2 more sources

A comparative study of DNA-dependent RNA polymerases from rat ascites hepatoma cell nuclei and from rat liver nuclei [PDF]

open access: yes, 1975
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

CDK9-dependent RNA polymerase II pausing controls transcription initiation

open access: yeseLife, 2017
Gene transcription can be activated by decreasing the duration of RNA polymerase II pausing in the promoter-proximal region, but how this is achieved remains unclear.
Saskia Gressel   +6 more
doaj   +1 more source

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