Results 41 to 50 of about 946,604 (388)

Structure of transcribing RNA polymerase II-nucleosome complex

open access: yesNature Communications, 2018
Eukaryotic transcription requires passage of RNA polymerase II (Pol II) through chromatin, which is impaired by nucleosomes. Here the authors report the cryo-EM structure of transcribing Pol II engaged with a downstream nucleosome core particle at an ...
Lucas Farnung   +2 more
doaj   +1 more source

Evolution and distribution of RNA polymerase II regulatory sites from RNA polymerase III dependant mobile Alu elements

open access: yesBMC Evolutionary Biology, 2004
Background The primate-specific Alu elements, which originated 65 million years ago, exist in over a million copies in the human genome. These elements have been involved in genome shuffling and various diseases not only through retrotransposition but ...
Brahmachari Samir K   +3 more
doaj   +1 more source

A global function for transcription factors in assisting RNA polymerase II termination. [PDF]

open access: yes, 2017
The role of transcription factors (TFs) on nucleosome positioning, RNA polymerase recruitment, and transcription initiation has been extensively characterized.
Chanfreau, Guillaume F, Roy, Kevin
core   +1 more source

Effect of CFIm68 knockdown on RNA polymerase II transcription

open access: yesBMC Research Notes, 2019
Objectives Transcription of eukaryotic protein-coding genes by RNA polymerase II (pol II) is highly regulated at initiation, elongation and termination.
Michael Tellier   +3 more
doaj   +1 more source

A two-state model for the dynamics of the pyrophosphate ion release in bacterial RNA polymerase. [PDF]

open access: yesPLoS Computational Biology, 2013
The dynamics of the PPi release during the transcription elongation of bacterial RNA polymerase and its effects on the Trigger Loop (TL) opening motion are still elusive.
Lin-Tai Da   +3 more
doaj   +1 more source

Transcription-associated breaks in Xeroderma Pigmentosum group D cells from patients with combined features of Xeroderma Pigmentosum and Cockayne Syndrome [PDF]

open access: yes, 2005
Defects in the XPD gene can result in several clinical phenotypes, including xeroderma pigmentosum (XP), trichothiodystrophy, and, less frequently, the combined phenotype of XP and Cockayne syndrome (XP-D/CS).
Andressoo, Jaan-Olle   +12 more
core   +3 more sources

RNA Polymerase II CTD phosphatase Rtr1 fine-tunes transcription termination.

open access: yesPLoS Genetics, 2020
RNA Polymerase II (RNAPII) transcription termination is regulated by the phosphorylation status of the C-terminal domain (CTD). The phosphatase Rtr1 has been shown to regulate serine 5 phosphorylation on the CTD; however, its role in the regulation of ...
Jose F Victorino   +10 more
doaj   +1 more source

Impact of template backbone heterogeneity on RNA polymerase II transcription. [PDF]

open access: yes, 2014
Variations in the sugar component (ribose or deoxyribose) and the nature of the phosphodiester linkage (3'-5' or 2'-5' orientation) have been a challenge for genetic information transfer from the very beginning of evolution.
Chong, Jenny   +5 more
core   +1 more source

Estrogen-induced modification of uterine RNA polymerase activity depends on localization of the estrogen receptor [PDF]

open access: yesArchives of Biological Sciences, 2007
The aim of this study was to examine the effects of estradiol (E2) on activity of RNA polymerase I and RNA polymerase II in uterine nuclei of ovariectomized (OVX) female rats.
Žakula Zorica   +5 more
doaj   +1 more source

RNA elements directing in vivo assembly of the 7SK/MePCE/Larp7 transcriptional regulatory snRNP [PDF]

open access: yes, 2013
Through controlling the nuclear level of active positive transcription elongation factor b (P-TEFb), the 7SK small nuclear RNA (snRNA) functions as a key regulator of RNA polymerase II transcription.
Bayfield   +43 more
core   +2 more sources

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