Results 61 to 70 of about 1,691,605 (342)

Gene regulation in transition [PDF]

open access: yesNature, 2016
An in-depth analysis of a close relative of animals, Capsaspora owczarzaki, provides clues to the changes in gene regulation that occurred during the transition to multicellularity.
Booth, David S, King, Nicole
openaire   +3 more sources

Insertion of the FeB cofactor in cNORs lacking metal inserting chaperones

open access: yesFEBS Letters, EarlyView.
Nitric oxide reductase is an enzyme found in the bacterial denitrification pathway. The NOR active site contains a non‐heme iron, often, but not always inserted with the assistance of chaperones. Here, we study the insertion of FeB in the subfamily of cNORs lacking chaperones and found a putative channel, conserved in the family, perhaps enabling the ...
Sofia Appelgren, Pia Ädelroth
wiley   +1 more source

A role for p53 in telomere protection

open access: yesMolecular & 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

Structural and mechanistic basis for the regulation of the chloroplast signal recognition particle by (p)ppGpp

open access: yesFEBS Letters, EarlyView.
LHCPs are transported to the thylakoid membrane via the (cp)SRP pathway. This process involves a transit complex of (cp)SRP43, (cp)SRP54 and LHCP, which interacts with (cp)FtsY and Alb3 at the membrane. GTP hydrolysis by (cp)SRP54 and (cp)FtsY triggers complex dissociation.
Victor Zegarra   +7 more
wiley   +1 more source

A lncRNA-SWI/SNF complex crosstalk controls transcriptional activation at specific promoter regions

open access: yesNature 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

Non-equilibrium dynamics of gene expression and the Jarzynski equality [PDF]

open access: yes, 2007
In order to express specific genes at the right time, the transcription of genes is regulated by the presence and absence of transcription factor molecules. With transcription factor concentrations undergoing constant changes, gene transcription takes place out of equilibrium.
arxiv   +1 more source

The multiple roles of the NlpC_P60 peptidase family in mycobacteria – an underexplored target for antimicrobial drug discovery

open access: yesFEBS Letters, EarlyView.
The NlpC_P60 superfamily of peptidases is recognised by its key role in bacterial cell wall homeostasis. Recently, studies have also described the involvement of NlpC_P60‐like enzymes in bacterial competitive mechanisms and pathogenesis across several lineages.
Catharina dos Santos Silva   +1 more
wiley   +1 more source

Geometric Characteristics of Dynamic Correlations for Combinatorial Regulation in Gene Expression Noise [PDF]

open access: yes, 2009
Knowing which mode of combinatorial regulation (typically, AND or OR logic operation) that a gene employs is important for determining its function in regulatory networks. Here, we introduce a dynamic cross-correlation function between the output of a gene and its upstream regulator concentrations for signatures of combinatorial regulation in gene ...
arxiv   +1 more source

Gene editing and gene regulation with CRISPR [PDF]

open access: yesExperimental Physiology, 2018
Genome editing enables precise changes to be made in the genome of living cells. The technique was originally developed in the 1980’s but largely limited to use in mice. The discovery that a targeted double stranded break (DSB) at a unique site in the genome, close to the site to be changed, could substantially increase the efficiency of editing ...
Patrick Harrison, Stephen Hart
openaire   +4 more sources

Making tau amyloid models in vitro: a crucial and underestimated challenge

open access: yesFEBS Letters, EarlyView.
This review highlights the challenges of producing in vitro amyloid assemblies of the tau protein. We review how accurately the existing protocols mimic tau deposits found in the brain of patients affected with tauopathies. We discuss the important properties that should be considered when forming amyloids and the benchmarks that should be used to ...
Julien Broc, Clara Piersson, Yann Fichou
wiley   +1 more source

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