Results 71 to 80 of about 334,121 (353)

Stochastic Gene Expression in Single Gene Oscillator Variants [PDF]

open access: yes, 2016
It is infeasible to understand all dynamics in cell, but we can aim to understand the impact of design choices under our control. Here we consider a single gene oscillator as a case study to understand the influence of DNA copy number and repressor ...
Bennett, Matthew R.   +4 more
core  

Unconventional mRNA processing and degradation pathways for the polycistronic yrzI (spyTA) mRNA in Bacillus subtilis

open access: yesFEBS Letters, EarlyView.
The S1025 peptide is the major antidote to the YrzI toxin, which we renamed here as SpyT (Small Peptide YrzI Toxin) and SpyA (Small Peptide YrzI Antitoxin) (1). Degradation of the toxin–antitoxin spyTA mRNA, either by a translation‐dependent cleavage by the endoribonuclease Rae1 (2) or by direct attack by 3′‐exoribonucleases (3), also contributes to ...
Laetitia Gilet   +4 more
wiley   +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

Stochastic gene transcription with non-competitive transcription regulatory architecture [PDF]

open access: yesarXiv, 2021
The transcription factors, such as activators and repressors, can interact with the promoter of gene either in a competitive or non-competitive way. In this paper, we construct a stochastic model with non-competitive transcriptional regulatory architecture and develop an analytical theory that re-establishes the experimental results with an improved ...
arxiv  

Synchronization and clustering of synthetic genetic networks: A role for cis-regulatory modules [PDF]

open access: yesPhys. Rev. E 79, 041903 (2009), 2009
The effect of signal integration through cis-regulatory modules (CRMs) on synchronization and clustering of populations of two-component genetic oscillators coupled by quorum sensing is in detail investigated. We find that the CRMs play an important role in achieving synchronization and clustering.
arxiv   +1 more source

Stochastic dynamics of macromolecular-assembly networks [PDF]

open access: yes, 2006
The formation and regulation of macromolecular complexes provides the backbone of most cellular processes, including gene regulation and signal transduction.
Arkin A   +4 more
core   +3 more sources

Specificity determinants for the interaction of lambda repressor and P22 repressor dimers. [PDF]

open access: yesGenes & Development, 1994
The related phage lambda and phage P22 repressors each bind cooperatively to adjacent and separated operator sites, an interaction that involves a pair of repressor dimers. The specificities of these interactions differ: Each dimer interacts with its own type but not with dimers of the heterologous repressor.
Ann Hochschild   +3 more
openaire   +3 more sources

The power of microRNA regulation—insights into immunity and metabolism

open access: yesFEBS Letters, EarlyView.
MicroRNAs are emerging as crucial regulators at the intersection of metabolism and immunity. This review examines how miRNAs coordinate glucose and lipid metabolism while simultaneously modulating T‐cell development and immune responses. Moreover, it highlights how cutting‐edge artificial intelligence applications can identify miRNA biomarkers ...
Stefania Oliveto   +2 more
wiley   +1 more source

Subspecialization of R2R3-MYB repressors for anthocyanin and proanthocyanidin regulation in forage legumes

open access: yesFrontiers in Plant Science, 2015
The synthesis of anthocyanin pigments and proanthocyanidins (condensed tannins) is regulated by MYB-bHLH-WDR (MBW) transcription factor complexes in all angiosperms studied to date. Tr-MYB133 and Tr-MYB134 were isolated from T.
Nick W Albert, Nick W Albert
doaj   +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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