Results 1 to 10 of about 38,791 (271)
The architecture of RNA polymerase fidelity [PDF]
BMC Biology, 2010 The basis for transcriptional fidelity by RNA polymerase is not understood, but the 'trigger loop', a conserved structural element that is rearranged in the presence of correct substrate nucleotides, is thought to be critical.
Kaplan Craig D
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Evolution of complex RNA polymerases: the complete archaeal RNA polymerase structure. [PDF]
PLoS Biology, 2009 The archaeal RNA polymerase (RNAP) shares structural similarities with eukaryotic RNAP II but requires a reduced subset of general transcription factors for promoter-dependent initiation.
Yakov Korkhin +7 more
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Abstract P-23: Histone N-terminal Tails Reduce Early Nucleosomal Pausing during Transcription [PDF]
International Journal of Biomedicine, 2021 Background: Nucleosomes are the barriers to transcript elongation by RNA polymerase 2 (Pol 2) in vitro and in vivo. Formation and overcoming the barrier are important for transcription regulation. N-terminal tails of core histones do not affect the inner
Nadezhda S. Gerasimova +2 more
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Abstract P-18: Phosphorylation of RNA Polymerase II C-Terminal Domain Affects Transcript Elongation Through Chromatin [PDF]
International Journal of Biomedicine, 2021 Background: Transcription is the central point of gene regulation where the efficient maintenance of chromatin structure during the passage of RNA polymerase (Pol II) is critical for cell survival and functioning.
Sohail Akhtar +3 more
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St. Petersburg Polytechnical University Journal: Physics and Mathematics, 2022 This work presents the results of single-molecular studies of the effect of magnesium ions on the dynamic characteristics of transcription elongation of bacterial RNA polymerase.
Arseniev Anatolii +6 more
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RNA Polymerases of Maize: Nuclear RNA Polymerases [PDF]
Proceedings of the National Academy of Sciences, 1971 Two DNA-dependent RNA polymerases of nuclear origin have been purified from leaves of Zea mays . The two enzymes can be separated on DEAE-cellulose columns. Enzymes I and II are eluted with 0.08 and 0.20 M (NH 4 ) 2 SO 4 , respectively.
Kathleen P. Mullinix +2 more
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Biotechnology & Biotechnological Equipment, 2021 Yeasts Saccharomyces cerevisiae, like other microbes in nature, respond to the unavailability of nutrients with entrance in quiescent/G0 state. These cells exist in non-dividing, latent form by maintaining the cellular metabolism at a low level but still
Asya Vladimirova Daskalova +5 more
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BioTechnologia, 2022 Coronavirus disease 2019 caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has affected 235.6 million people worldwide. In the present study, RNA-dependent RNA polymerase (RdRp) (PDB Id: 6M71) of SARS-CoV-2, an essential enzyme ...
Nahid Akhtar +5 more
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Extragenic accumulation of RNA polymerase II enhances transcription by RNA polymerase III. [PDF]
PLoS Genetics, 2007 Recent genomic data indicate that RNA polymerase II (Pol II) function extends beyond conventional transcription of primarily protein-coding genes. Among the five snRNAs required for pre-mRNA splicing, only the U6 snRNA is synthesized by RNA polymerase ...
Imke Listerman +3 more
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Biophysical Chemistry, 2011 Molecular motors can exhibit Brownian ratchet or power stroke mechanisms. These mechanistic categories are related to transition state position: An early transition state suggests that chemical energy is stored and then released during the step (stroke) while a late transition state suggests that the release of chemical energy rectifies thermally ...
Eric A. Galburt +2 more
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