Results 71 to 80 of about 491,654 (394)

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

Synthetic biology—putting engineering into biology [PDF]

open access: yes, 2006
Synthetic biology is interpreted as the engineering-driven building of increasingly complex biological entities for novel applications. Encouraged by progress in the design of artificial gene networks, de novo DNA synthesis and protein engineering, we ...
Heinemann, Matthias,, Panke, Sven,
core   +1 more source

Integration of circadian and hypoxia signaling via non‐canonical heterodimerization

open access: yesFEBS Letters, EarlyView.
CLOCK, BMAL1, and HIFs are basic helix‐loop‐helix and Per‐Arnt‐Sim domain (bHLH‐PAS) proteins, which function as transcription factors. bHLH‐PAS proteins are designated in two classes. Many class I proteins are regulated by environmental signals via their PAS domains, but such signals have not been identified for all.
Sicong Wang, Katja A. Lamia
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

The short-lived MATα2 transcriptional regulator is ubiquitinated in vivo [PDF]

open access: yes, 1991
The substrates of ubiquitin-dependent proteolytic pathways include both damaged or otherwise abnormal proteins and undamaged proteins that are naturally short-lived. Few specific examples of the latter class have been identified, however.
Chau, Vincent   +3 more
core  

Compositionality, stochasticity and cooperativity in dynamic models of gene regulation

open access: yes, 2007
We present an approach for constructing dynamic models for the simulation of gene regulatory networks from simple computational elements. Each element is called a ``gene gate'' and defines an input/output-relationship corresponding to the binding and ...
Alberts B   +19 more
core   +2 more sources

Adenosine‐to‐inosine editing of miR‐200b‐3p is associated with the progression of high‐grade serous ovarian cancer

open access: yesMolecular Oncology, EarlyView.
A‐to‐I editing of miRNAs, particularly miR‐200b‐3p, contributes to HGSOC progression by enhancing cancer cell proliferation, migration and 3D growth. The edited form is linked to poorer patient survival and the identification of novel molecular targets.
Magdalena Niemira   +14 more
wiley   +1 more source

The N-terminal domain of the repressor of Staphylococcus aureus phage Φ11 possesses an unusual dimerization ability and DNA binding affinity. [PDF]

open access: yesPLoS ONE, 2014
Bacteriophage Φ11 uses Staphylococcus aureus as its host and, like lambdoid phages, harbors three homologous operators in between its two divergently oriented repressor genes. None of the repressors of Φ11, however, showed binding to all three operators,
Anindya Biswas   +2 more
doaj   +1 more source

Rules for biological regulation based on error minimization

open access: yes, 2006
The control of gene expression involves complex mechanisms that show large variation in design. For example, genes can be turned on either by the binding of an activator (positive control) or the unbinding of a repressor (negative control).
Atkinson   +37 more
core   +2 more sources

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