Results 11 to 20 of about 849,958 (180)

Molecular insight into RNA polymerase I promoter recognition and promoter melting

open access: yesNature Communications, 2019
RNA polymerase I (Pol I) catalyses the transcription of pre-ribosomal RNA and for transcription initiation Pol I assembles with core factor and Rrn3 on the rDNA core promoter.
Yashar Sadian   +6 more
doaj   +2 more sources

The conserved RNA-binding protein Seb1 promotes cotranscriptional ribosomal RNA processing by controlling RNA polymerase I progression [PDF]

open access: yesNature Communications, 2023
Transcription by RNA polymerase I (RNAPI) represents most of the transcriptional activity in eukaryotic cells and is associated with the production of mature ribosomal RNA (rRNA).
Maxime Duval   +5 more
doaj   +2 more sources

The dynamic assembly of distinct RNA polymerase I complexes modulates rDNA transcription

open access: yeseLife, 2017
Cell growth requires synthesis of ribosomal RNA by RNA polymerase I (Pol I). Binding of initiation factor Rrn3 activates Pol I, fostering recruitment to ribosomal DNA promoters.
Eva Torreira   +9 more
doaj   +2 more sources

TblncRNA-23, a long non-coding RNA transcribed by RNA polymerase I, regulates developmental changes in Trypanosoma brucei [PDF]

open access: yesNature Communications
The protozoan parasite Trypanosoma brucei undergoes a complex life cycle, moving between its mammalian host and the blood-feeding tsetse fly vector. The two major surface proteins expressed by procyclic forms in the insect midgut, EP and GPEET procyclin,
Beathrice Galili-Kostin   +10 more
doaj   +2 more sources

Structure of the initiation-competent RNA polymerase I and its implication for transcription

open access: yesNature Communications, 2016
Eukaryotic RNA polymerase I (Pol I) is responsible for the transcription of rRNA genes. Here the authors determine the cryo-EM structure of the Pol I-Rrn3 complex, providing insight into how Rrn3 stabilizes the monomeric initiation competent Pol I to ...
Michael Pilsl   +8 more
doaj   +2 more sources

Research Note: Establishment of vector system harboring duck RNA polymerase I promoter for avian influenza virus [PDF]

open access: yesPoultry Science
Reverse genetics (RG) systems are extensively utilized to investigate the characteristics of influenza viruses and develop vaccines, predominantly relying on human RNA polymerase I (pol I). However, the efficiency of RG systems for avian-origin influenza
Yunyueng Jang   +7 more
doaj   +2 more sources

Cryo-EM uncovers a sequential mechanism for RNA polymerase I pausing and stalling at abasic DNA lesions [PDF]

open access: yesNature Communications
During synthesis of the ribosomal RNA precursor, RNA polymerase I (Pol I) monitors DNA integrity but its response to DNA damage remains poorly studied.
Alicia Santos-Aledo   +8 more
doaj   +2 more sources

Ccr4-not regulates RNA polymerase I transcription and couples nutrient signaling to the control of ribosomal RNA biogenesis. [PDF]

open access: yesPLoS Genetics, 2015
Ribosomal RNA synthesis is controlled by nutrient signaling through the mechanistic target of rapamycin complex 1 (mTORC1) pathway. mTORC1 regulates ribosomal RNA expression by affecting RNA Polymerase I (Pol I)-dependent transcription of the ribosomal ...
R Nicholas Laribee   +3 more
doaj   +2 more sources

Regulation of Eukaryotic RNAPs Activities by Phosphorylation

open access: yesFrontiers in Molecular Biosciences, 2021
Evolutionarily conserved kinases and phosphatases regulate RNA polymerase II (RNAPII) transcript synthesis by modifying the phosphorylation status of the carboxyl-terminal domain (CTD) of Rpb1, the largest subunit of RNAPII.
Araceli González-Jiménez   +5 more
doaj   +1 more source

Direct Characterization of Transcription Elongation by RNA Polymerase I. [PDF]

open access: yesPLoS ONE, 2016
RNA polymerase I (Pol I) transcribes ribosomal DNA and is responsible for more than 60% of transcription in a growing cell. Despite this fundamental role that directly impacts cell growth and proliferation, the kinetics of transcription by Pol I are ...
Suleyman Ucuncuoglu   +5 more
doaj   +1 more source

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