Results 61 to 70 of about 483,350 (345)

The transcriptional repressor domain of Gli3 is intrinsically disordered. [PDF]

open access: yesPLoS ONE, 2013
The transcription factor Gli3 is acting mainly as a transcriptional repressor in the Sonic hedgehog signal transduction pathway. Gli3 contains a repressor domain in its N-terminus from residue G106 to E236.
Robert Tsanev   +8 more
doaj   +1 more source

Isolating intrinsic noise sources in a stochastic genetic switch [PDF]

open access: yes, 2011
The stochastic mutual repressor model is analysed using perturbation methods. This simple model of a gene circuit consists of two genes and three promotor states. Either of the two protein products can dimerize, forming a repressor molecule that binds to
Newby, J. M.
core   +2 more sources

Colorectal cancer‐derived FGF19 is a metabolically active serum biomarker that exerts enteroendocrine effects on mouse liver

open access: yesMolecular Oncology, EarlyView.
Meta‐transcriptome analysis identified FGF19 as a peptide enteroendocrine hormone associated with colorectal cancer prognosis. In vivo xenograft models showed release of FGF19 into the blood at levels that correlated with tumor volumes. Tumoral‐FGF19 altered murine liver metabolism through FGFR4, thereby reducing bile acid synthesis and increasing ...
Jordan M. Beardsley   +5 more
wiley   +1 more source

Promoter keyholes enable specific and persistent multi-gene expression programs in primary T cells without genome modification [PDF]

open access: yes, 2020
Non-invasive epigenome editing is a promising strategy for engineering gene expression programs, yet potency, specificity, and persistence remain challenging.
Acosta, Reyes   +25 more
core  

Subtype‐specific enhancer RNAs define transcriptional regulators and prognosis in breast cancers

open access: yesMolecular Oncology, EarlyView.
This study employed machine learning methodologies to perform the subtype‐specific classification of RNA‐seq data sets, which are mapped on enhancers from TCGA‐derived breast cancer patients. Their integration with gene expression (referred to as ProxCReAM eRNAs) and chromatin accessibility profiles has the potential to identify lineage‐specific and ...
Aamena Y. Patel   +6 more
wiley   +1 more source

Identification of Chimeric Repressors that Confer Salt and Osmotic Stress Tolerance in Arabidopsis

open access: yesPlants, 2013
We produced transgenic Arabidopsis plants that express chimeric genes for transcription factors converted to dominant repressors, using Chimeric REpressor gene-Silencing Technology (CRES-T), and evaluated the salt tolerance of each line.
Daisuke Kazama   +5 more
doaj   +1 more source

Interplay of protein and DNA structure revealed in simulations of the lac operon. [PDF]

open access: yesPLoS ONE, 2013
The E. coli Lac repressor is the classic textbook example of a protein that attaches to widely spaced sites along a genome and forces the intervening DNA into a loop.
Luke Czapla   +3 more
doaj   +1 more source

Genetic attenuation of ALDH1A1 increases metastatic potential and aggressiveness in colorectal cancer

open access: yesMolecular Oncology, EarlyView.
Aldehyde dehydrogenase 1A1 (ALDH1A1) is a cancer stem cell marker in several malignancies. We established a novel epithelial cell line from rectal adenocarcinoma with unique overexpression of this enzyme. Genetic attenuation of ALDH1A1 led to increased invasive capacity and metastatic potential, the inhibition of proliferation activity, and ultimately ...
Martina Poturnajova   +25 more
wiley   +1 more source

Estudos Sôbre Regulação Metabólica Contrôle de Síntese de Proteínas: V - Ação da Glicose na Regulação da Tirosina Alfa Ceto Glutarato Transaminase em Fígado de Rato

open access: yesRevista Brasileira de Cancerologia, 2023
O presente trabalho demonstra que o efeito “repressor” da glicose sôbre TT no fígado não se apresenta se o animal fôr previamente tratado com 5-PU. Porém, o 5-FU não evita o efeito da glicose, se fôr administrado depois dêste glicidio.
Mauro C. Faria   +3 more
doaj   +1 more source

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