Results 81 to 90 of about 2,226,379 (341)
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 +10 more
doaj +1 more source
Inhibitor of DNA binding‐1 is a key regulator of cancer cell vasculogenic mimicry
Molecular Oncology, EarlyView.Elevated expression of transcriptional regulator inhibitor of DNA binding 1 (ID1) promoted cancer cell‐mediated vasculogenic mimicry (VM) through regulation of pro‐angiogenic and pro‐cancerous genes (e.g. VE‐cadherin (CDH5), TIE2, MMP9, DKK1). Higher ID1 expression also increased metastases to the lung and the liver.
Emma J. Thompson +11 more
wiley +1 more source
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
Open Veterinary JournalBackground: Mycobacterium tuberculosis (Mtb), a pathogen that belongs to the M. tuberculosis complex (MTBC), causes tuberculosis (TB), an infectious bacterial disease.
Maged Fouda +5 more
doaj +1 more source
CDK9-dependent RNA polymerase II pausing controls transcription initiation
eLife, 2017 Gene transcription can be activated by decreasing the duration of RNA polymerase II pausing in the promoter-proximal region, but how this is achieved remains unclear.
Saskia Gressel +6 more
semanticscholar +1 more source
Molecular Oncology, EarlyView.Nuclear prothymosin α inhibits epithelial‐mesenchymal transition (EMT) in lung cancer by increasing Smad7 acetylation and competing with Smad2 for binding to SNAI1, TWIST1, and ZEB1 promoters. In early‐stage cancer, ProT suppresses TGF‐β‐induced EMT, while its loss in the nucleus in late‐stage cancer leads to enhanced EMT and poor prognosis.
Liyun Chen +12 more
wiley +1 more source
Dynamics of Matrix Metalloproteinase-9 Levels in the Novel Coronavirus Infection COVID-19
Антибиотики и ХимиотерапияBackground. It has been established that metalloproteinase-9 (hereinafter MMP-9) is the most inducible enzyme of the metalloproteinase family. It regulates the migration of leukocytes to the site of inflammation, participates in the stimulation of pro ...
A. U. Sabitov +5 more
doaj +1 more source
Frontiers in Molecular Biosciences, 2015 RNA polymerase catalyzes transcription with a high fidelity. If DNA/RNA mismatch or DNA damage occurs downstream, a backtracked RNA polymerase can proofread this situation. However, the backtracked mechanism is still poorly understood.
Haifeng eChen, Haifeng eChen
doaj +1 more source
Molecular Oncology, EarlyView.This study develops a semi‐supervised classifier integrating multi‐genomic data (1404 training/5893 validation samples) to improve homologous recombination deficiency (HRD) detection in breast cancer. Our method demonstrates prognostic value and predicts chemotherapy/PARP inhibitor sensitivity in HRD+ tumours.
Rong Zhu +12 more
wiley +1 more source
Norovirus Proteinase-Polymerase and Polymerase Are Both Active Forms of RNA-Dependent RNA Polymerase [PDF]
Journal of Virology, 2005 ABSTRACT In vitro mapping studies of the MD145 norovirus ( Caliciviridae ) ORF1 polyprotein identified two stable cleavage products containing the viral RNA-dependent RNA polymerase (RdRp) domains: ProPol (a precursor comprised of both the proteinase and polymerase) and Pol (the mature polymerase).
Gaël Belliot +7 more
openaire +3 more sources