Results 41 to 50 of about 1,265,836 (379)
Extending the dynamic range of transcription factor action by translational regulation [PDF]
Phys. Rev. E 93, 022404 (2016), 2015 A crucial step in the regulation of gene expression is binding of transcription factor (TF) proteins to regulatory sites along the DNA. But transcription factors act at nanomolar concentrations, and noise due to random arrival of these molecules at their binding sites can severely limit the precision of regulation.
arxiv +1 more source
The Distinctive Regulation of Cyanobacterial Glutamine Synthetase [PDF]
, 2018 Glutamine synthetase (GS) features prominently in bacterial nitrogen assimilation as it catalyzes the entry of bioavailable nitrogen in form of ammonium into cellular metabolism. The classic example, the comprehensively characterized GS of enterobacteria,
Bolay, Paul +3 more
core +1 more source
Transcriptional Regulation by Nrf2
Antioxidants & Redox Signaling, 2018 Nuclear factor E2-related factor 2 (Nrf2) is a transcription factor that coordinates the basal and stress-inducible activation of a vast array of cytoprotective genes. Understanding the regulation of Nrf2 activity and downstream pathways has major implications for human health.
Claudia Tonelli +3 more
openaire +4 more sources
ZEB1 protects skeletal muscle from damage and is required for its regeneration
Nature Communications, 2019 Following muscle damage, an inflammatory response is associated to activation of satellite cells, which drive muscle repair. Here, the authors show that upregulation of Zeb1 in macrophages and muscle fibres regulates inflammation, and also show a role ...
Laura Siles +4 more
doaj +1 more source
R-loops in normal and malignant hematopoiesis
Frontiers in Hematology, 2023 An R-loop is a nucleic acid structure consisting of a DNA : RNA hybrid and single-stranded DNA. It is formed physiologically in normal cells and is involved in transcription, replication, and gene rearrangement; in particular, it has multiple roles ...
Mayumi Hirayama +3 more
doaj +1 more source
3D polymer simulations of genome organization and transcription across different chromosomes and cell types [PDF]
, 2022 We employ the diffusing transcription factors model for numerical simulation of chromatin topology conformations and transcriptional processes of human chromatin. Simulations of a short chromatin filament reveal different possible pathways to regulate transcription: it is shown that the transcriptional activity profile can be regulated and controlled ...
arxiv +1 more source
Regulation of Transcript Elongation [PDF]
Annual Review of Microbiology, 2015 Bacteria lack subcellular compartments and harbor a single RNA polymerase that synthesizes both structural and protein-coding RNAs, which are cotranscriptionally processed by distinct pathways. Nascent rRNAs fold into elaborate secondary structures and associate with ribosomal proteins, whereas nascent mRNAs are translated by ribosomes.
Irina Artsimovitch, Georgiy A. Belogurov
openaire +3 more sources
Genome Biology, 2018 Background The gut microbiome, a key constituent of the colonic environment, has been implicated as an important modulator of human health. The eukaryotic epigenome is postulated to respond to environmental stimuli through alterations in chromatin ...
Yufeng Qin +7 more
doaj +1 more source
Frontiers in Cell and Developmental Biology, 2022 The cladoceran crustacean Daphnia produces only females by parthenogenesis in a healthy population. However, in response to environmental declines such as crowding and lack of foods, it produces eggs destined to become males that are genetically ...
Yasuhiko Kato, Hajime Watanabe
doaj +1 more source
Organellar carbon metabolism is co-ordinated with distinct developmental phases of secondary xylem [PDF]
, 2019 Subcellular compartmentation of plant biosynthetic pathways in the mitochondria and plastids requires coordinated regulation of nuclear encoded genes, and the role of these genes has been largely ignored by wood researchers. In this study, we constructed
Fierro Gutierrez, Ana Carolina Elisa +4 more
core +2 more sources