Results 21 to 30 of about 1,900,870 (246)

Rho-dependent transcription termination in bacteria recycles RNA polymerases stalled at DNA lesions

open access: yesNature Communications, 2019
In bacteria, the Rho protein dislodges elongation complexes to terminate transcription, and the Mfd protein removes RNA polymerases (RNAPs) stalled at DNA lesions. Here, Jain et al.
Sriyans Jain, Richa Gupta, Ranjan Sen
doaj   +1 more source

Lysine-Specific Histone Demethylase 1A Regulates Macrophage Polarization and Checkpoint Molecules in the Tumor Microenvironment of Triple-Negative Breast Cancer

open access: yesFrontiers in Immunology, 2019
Macrophages play an important role in regulating the tumor microenvironment (TME). Here we show that classical (M1) macrophage polarization reduced expression of LSD1, nuclear REST corepressor 1 (CoREST), and the zinc finger protein SNAIL.
Abel H. Y. Tan   +7 more
doaj   +1 more source

Transcriptional enhancers: Transcription, function and flexibility [PDF]

open access: yesTranscription, 2016
Active transcriptional enhancers are often transcribed to eRNAs, whose changing levels mirror those of the target gene mRNA. We discuss some of the reported functions of these eRNAs and their likely diversity to allow utilization of distinct cis regulatory regions to enhance transcription in diverse developmental and cellular contexts.
Sergei Rudnizky   +3 more
openaire   +3 more sources

The Transcription Factor Encyclopedia [PDF]

open access: yesGenome Biology, 2012
AbstractHere we present the Transcription Factor Encyclopedia (TFe), a new web-based compendium of mini review articles on transcription factors (TFs) that is founded on the principles of open access and collaboration. Our consortium of over 100 researchers has collectively contributed over 130 mini review articles on pertinent human, mouse and rat TFs.
Yusuf, Dimas   +114 more
openaire   +14 more sources

The Rho-Dependent Transcription Termination Is Involved in Broad-Spectrum Antibiotic Susceptibility in Escherichia coli

open access: yesFrontiers in Microbiology, 2020
One of the major ways of acquiring multidrug resistance in bacteria is via drug influx and efflux pathways. Here, we show that E. coli with compromised Rho-dependent transcription termination function has enhanced broad-spectrum antibiotic susceptibility,
Md. Hafeezunnisa   +2 more
doaj   +1 more source

Many Distinct Ways Lead to Drug Resistance in BRAF- and NRAS-Mutated Melanomas

open access: yesLife, 2021
Advanced melanoma is a relentless tumor with a high metastatic potential. The combat of melanoma by using the targeted therapy is impeded because several major driver mutations fuel its growth (predominantly BRAF and NRAS).
Jiri Vachtenheim, Lubica Ondrušová
doaj   +1 more source

Runaway transcription [PDF]

open access: yesGenome Biology, 2013
A newly demonstrated defect in RNA polymerase II termination caused by 7SK snRNA knockdown may have revealed a novel mechanism uncoupling RNA processing from transcription.
Jiannan Guo, David H. Price, Tiandao Li
openaire   +3 more sources

Transcription factories

open access: yesFrontiers in Genetics, 2012
There is considerable evidence that transcription does not occur homogeneously or diffusely throughout the nucleus, but rather at a number of specialized, discrete sites termed transcription factories. The factories are composed of ~4-30 RNA polymerase molecules, and are associated with many other molecules involved in transcriptional activation and ...
Rieder, Dietmar   +2 more
openaire   +3 more sources

Transcription Activation via Transcriptional Bursting [PDF]

open access: yesBiophysical Journal, 2011
Transcription factors (TFs) often regulate their own expression; monitoring TF production in real time will help elucidate autoregulatory mechanisms. However, many TFs are expressed at low levels and are difficult to detect. Further, labeling TFs with fluorescent proteins risks disrupting their regulatory functions. Here, we report a novel strategy, Co-
Jin Wang   +6 more
openaire   +2 more sources

ERK2-topoisomerase II regulatory axis is important for gene activation in immediate early genes

open access: yesNature Communications, 2023
The function of the mitogen-activated protein kinase signaling pathway is required for the activation of immediate early genes (IEGs), including EGR1 and FOS, for cell growth and proliferation.
Heeyoun Bunch   +10 more
doaj   +1 more source

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