Results 31 to 40 of about 1,661,421 (342)
Intrinsic noise of microRNA-regulated genes and the ceRNA hypothesis [PDF]
PLoS ONE 8(8): e72676 (2013), 2012 MicroRNAs are small noncoding RNAs that regulate genes post-transciptionally by binding and degrading target eukaryotic mRNAs. We use a quantitative model to study gene regulation by inhibitory microRNAs and compare it to gene regulation by prokaryotic small non-coding RNAs (sRNAs).
arxiv +1 more source
A role for p53 in telomere protection
Molecular & Cellular Oncology, 2017 Telomeres cap the ends of chromosomes and are crucial for genome stability. The p53 protein (TP53) is a vital tumor suppressor, activating the transcription of numerous genes in response to cell stress.
Stephen Tutton, Paul M. Lieberman
doaj +1 more source
The human lncRNA LINC-PINT inhibits tumor cell invasion through a highly conserved sequence element
Genome Biology, 2017 Background It is now obvious that the majority of cellular transcripts do not code for proteins, and a significant subset of them are long non-coding RNAs (lncRNAs).
Oskar Marín-Béjar +12 more
doaj +1 more source
Regulated gene expression in methanogens [PDF]
FEMS Microbiology Reviews, 1994 Methanogens form a very large and diverse group of microorganisms within the domain of the Archaea. Energy for their growth is obtained by the reduction of a variety of substrates into methane. Several genes, coding for enzymes involved in methanogenesis or in the central metabolism have been cloned and studied.
openaire +3 more sources
A lncRNA-SWI/SNF complex crosstalk controls transcriptional activation at specific promoter regions
Nature Communications, 2020 SWI/SNF complexes regulate chromatin architecture and gene expression. Here the authors report the RNA interactome of SMARCB1-containing SWI/SNF complexes, showing the function of SMARCB1-interacting long noncoding RNA SWINGN in transcriptional ...
Elena Grossi +8 more
doaj +1 more source
Cells, 2020 Chromosomes are organized into 3D structures that are important for the regulation of gene expression and differentiation. Important role in formation of inter-chromosome contacts play rDNA clusters that make up nucleoli. In the course of differentiation,
Nickolai A. Tchurikov +7 more
doaj +1 more source
Regulation of expression of the erythropoietin gene
Current Opinion in Hematology, 1998 Erythropoietin, a hormone produced in the adult kidney, controls erythrocyte production. In response to ischemic or hypoxic hypoxia, the level of expression of the gene increases markedly. We have a limited understanding of the factors governing the tissue specificity of erythropoietin gene expression but considerable progress has been made toward ...
Maxwell, P, Ratcliffe, P
openaire +3 more sources
Master regulators as order parameters of gene expression states [PDF]
Phys. Rev. E 103, 012409 (2021), 2020 Cell type-specific gene expression patterns are represented as memory states of a Hopfield neural network model. It is shown that order parameters of this model can be interpreted as concentrations of master transcription regulators that form concurrent positive feedback loops with a large number of downstream regulated genes.
arxiv +1 more source
The dual nature of TDC – bridging dendritic and T cells in immunity
FEBS Letters, EarlyView.TDC are hematopoietic cells combining dendritic and T cell features. They reach secondary lymphoid organs (SLOs) and peripheral organs (liver and lungs) after FLT3‐dependent development in the bone marrow and maturation in the thymus. TDC are activated and enriched in SLOs upon viral infection, suggesting that they might play unique immune roles, since
Maria Nelli, Mirela Kuka
wiley +1 more source
Influence of gene copy number on self-regulated gene expression [PDF]
, 2016 Using an analytically solvable stochastic model, we study the properties of a simple genetic circuit consisting of multiple copies of an self-regulating gene. We analyse how the variation in gene copy number and the mutations changing the auto-regulation strength affect the steady-state distribution of protein concentration.
arxiv +1 more source