Results 101 to 110 of about 2,706,723 (382)

Transcription factors modulate RNA polymerase conformational equilibrium

Nature Communications, 2022
Pausing of RNA polymerase (RNAP) and transcription is regulated by the NusA and NusG transcription factors in bacteria. Here the authors provide structural evidence for how they interact with RNAP to carry out their pausing roles and also reveal ...
Chengjin Zhu, Xieyang Guo, Philippe Dumas, Maria Takacs, Mo’men Abdelkareem, Arnaud Vanden Broeck, Charlotte Saint-André, Gabor Papai, Corinne Crucifix, Julio Ortiz, Albert Weixlbaumer   +10 more
doaj   +1 more source

RNA polymerase II stalling promotes nucleosome occlusion and pTEFb recruitment to drive immortalization by Epstein-Barr virus [PDF]

, 2011
Epstein-Barr virus (EBV) immortalizes resting B-cells and is a key etiologic agent in the development of numerous cancers. The essential EBV-encoded protein EBNA 2 activates the viral C promoter (Cp) producing a message of ~120 kb that is differentially ...
A Bakos, A Bell, A Dey, A Lin, AI Bell, B Kempkes, B Sugden, BM Peterlin, C Lee, CD Gregory, CF Bourgeois, CH Wu, CH Wu, D Ivanov, DA Gilchrist, DC Hargreaves, DS Gilmour, DS Gilmour, DY Wu, DY Wu, E Johannsen, E Klein, EA Abbate, G Kelly, G Laux, H Gross, H Kirby, Helen M. Webb, I Tempera, J You, JH Yik, JI Cohen, K Fujinaga, KD Robertson, KD Robertson, L Waltzer, L Wang, M Ottinger, M Woisetschlaeger, M Woisetschlaeger, Michelle J. West, MJ West, MK Jang, N Alazard, N Kaplan, NA Brown, NF Marshall, NP Gomes, P Filippakopoulos, Paul M. Lieberman, R Tierney, Richard D. Palermo, S Egloff, S Egloff, S Swaminathan, SH Chao, SJ Bark-Jones, SR Grossman, SY Wu, T Fujita, T Fujita, T Henkel, T Wada, T Wada, U Zimber-Strobl, VT Nguyen, W Lucchesi, W Yue, W Yue, W Yue, W Zhu, X Tong, X Tong, X Tong, YK Kim, Z Yang   +75 more
core   +3 more sources

T7 RNA Polymerase

Uirusu, 2001
The T7 bacteriophage encodes a single-subunit RNA polymerase of 99 kDa that transcribes the phage's genes during its lytic growth in Escherichia coli. The T7 RNA polymerase is structurally similar to DNA polymerases, reverse transcriptases, and RNA-directed RNA polymerases, and these structural similarities define a polymerase superfamily that includes
openaire   +5 more sources

RNA Polymerase as a Molecular Motor [PDF]

Cell, 1998
The existing single-molecule studies of E. coli RNAP suggest a number of promising avenues for future research into transcription mechanisms in both prokaryotes and eukaryotes. First, if measurements can be made precisely enough to resolve 1 bp steps with high time resolution, the experiments could discriminate between alternative translocation ...
Jeff Gelles, Robert Landick
openaire   +3 more sources

ITGAV and SMAD4 influence the progression and clinical outcome of pancreatic ductal adenocarcinoma

Molecular Oncology, EarlyView.
In SMAD4‐positive pancreatic ductal adenocarcinoma (PDAC), integrin subunit alpha V (ITGAV) activates latent TGF‐β, which binds to the TGF‐β receptor and phosphorylates SMAD2/3. The activated SMAD2/3 forms a complex with SMAD4, and together they translocate to the nucleus, modulating gene expression to promote proliferation, migration, and invasion. In
Daniel K. C. Lee, Keyue Chen, Ryan Loke, Xiang Li, David Liubart, Golam T. Saffi, Jonathan T. S. Chow, Ché M. P. Melo, Lydia To, Leonardo Salmena   +9 more
wiley   +1 more source

Nascent RNA sequencing reveals mechanisms of gene regulation in the human malaria parasite Plasmodium falciparum. [PDF]

, 2017
Gene expression in Plasmodium falciparum is tightly regulated to ensure successful propagation of the parasite throughout its complex life cycle. The earliest transcriptomics studies in P.
Batugedara, Gayani, Bunnik, Evelien M, Le Roch, Karine G, Lee, Michael, Lu, Xueqing Maggie, Prudhomme, Jacques   +5 more
core   +1 more source

Comprehensive profiling of lncRNAs and mRNAs enriched in small extracellular vesicles for early noninvasive detection of colorectal cancer: diagnostic panel assembly and extensive validation

Molecular Oncology, EarlyView.
Small extracellular vesicles are a promising source of diagnostic molecules. We conducted a comprehensive study, including transcriptome profiling and RT‐qPCR validation on large cohorts of samples. Diagnostic panels enabling sensitive detection of colorectal cancer and precancerous lesions were established. Some molecules were differentially expressed
Petra Vychytilova‐Faltejskova, Marketa Pavlikova, Lucie Pifkova, Robin Jugas, Tana Machackova, Lenka Radova, Milana Sachlova, Renata Bartosova, Tetiana Samoilenko, Zuzana Feckova, Jana Orlickova, Erika Slamova, Elleni Ponechal Michu, Dagmar Al Tukmachi, Michaela Ruckova, Martina Vodinska, Jan Kotoucek, Tina Catela Ivkovic, Marie Boudna, Lucia Bohovicova, Teodor Stanek, Jana Halamkova, Martin Svoboda, Vladimir Prochazka, Tomas Grolich, Zdenek Kala, Ondrej Slaby   +26 more
wiley   +1 more source

NeoRdRp2 with improved seed data, annotations, and scoring

Frontiers in Virology
RNA-dependent RNA polymerase (RdRp) is a marker gene for RNA viruses; thus, it is widely used to identify RNA viruses from metatranscriptome data. However, because of the high diversity of RdRp domains, it remains difficult to identify RNA viruses using ...
Shoichi Sakaguchi, Takashi Nakano, So Nakagawa, So Nakagawa, So Nakagawa   +4 more
doaj   +1 more source

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

BMC 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, Grover Deepak, Shankar Ravi, Mukerji Mitali   +3 more
doaj   +1 more source

Ribonucleolytic resection is required for repair of strand displaced nonhomologous end-joining intermediates [PDF]

, 2013
Nonhomologous end-joining (NHEJ) pathways repair DNA double-strand breaks (DSBs) in eukaryotes and many prokaryotes, although it is not reported to operate in the third domain of life, archaea. Here, we describe a complete NHEJ complex, consisting of DNA
Bartlett, Edward, Brissett, Nigel C, Doherty, Aidan J   +2 more
core   +1 more source