Concept

Phosphorylation oxydative

Publications associées (383)

Regulation of cortical contractility and spindle positioning by the protein phosphatase 6 PPH-6 in one-cell stage C. elegans embryos

Modulation of the microtubule and the actin cytoskeleton is crucial for proper cell division. Protein phosphorylation is known to be an important regulatory mechanism modulating these cytoskeletal networks. By contrast, there is a relative paucity of infor ...

2010

Effect of changes in water level on sediment pore water redox geochemistry at a reservoir shoreline

Janet Gordon Hering, Miles Henry Anderson

Pore water samplers with high vertical resolution were used to evaluate the response of sediment redox geochemistry during transient hydrologic conditions at Lake Powell, a large reservoir in Utah and Arizona, USA. Samplers were deployed at two different y ...

Elsevier2010

Cross Coupling of Non-Activated Alkyl Halides by a Nickel Pincer Complex

Xile Hu

Non-activated alkyl halides are challenging substrates for cross-coupling reactions because they are reluctant to undergo oxidative addition and because metal alkyl intermediates are prone to β-H elimination. Despite recent progress, well-defined catalysts ...

Schweizerische Chemische Gesellschaft2010

Proton Transfer Studied Using a Combined Ab Initio Reactive Potential Energy Surface with Quantum Path Integral Methodology

Jiri Vanicek, Wei Zhang

The rates of intramolecular proton transfer are calculated on a full-dimensional reactive electronic potential energy surface that incorporates high-level ab initio calculations along the reaction path and by using classical transition state theory, path-i ...

2010

Regeneration of Oxidized Organic Photo-Sensitizers in Graetzel Solar Cells: quantum-Chemical Portrait of a General Mechanism

Ulf Anders Hagfeldt

The article presents DFT calcns. that elucidate the interaction of a redox mediator, iodide/triiodide, and an oxidized org. dye photo-sensitizer, providing electronic structure insight into all steps of the mechanism involved in dye-sensitized solar cells. ...

2010

Efficient Electron Transfer and Sensitizer Regeneration in Stable π-Extended Tetrathiafulvalene-Sensitized Solar Cells

Shaik Mohammed Zakeeruddin, Jacques-Edouard Moser, Robin Humphry-Baker, Joël Teuscher, Davide Di Censo, Sophie Wenger, Qianli Chen

The development of metal-free organic sensitizers is a key issue in dye-sensitized solar cell research. We report successful photovoltaic conversion with a new class of stable tetrathiafulvalene derivatives, showing surprising electrochemical and kinetic p ...

American Chemical Society2010

Influence of Uncertainties in pH, pMg, Activity Coefficients, Metabolite Concentrations, and Other Factors on the Analysis of the Thermodynamic Feasibility of Metabolic Pathways

Urs von Stockar

Thermodynamic feasibility analysis (TFA) has been used as a toot capable of providing additional constraints to the mass balance-based methods of analysis of Metabolic networks (e.g., flux balance analysis). Several publications have recently appeared in w ...

2009

AMPK regulates energy expenditure by modulating NAD(+) metabolism and SIRT1 activity

Johan Auwerx, Carlos Canto Alvarez, Lilia Noriega Lopez

AMP-activated protein kinase (AMPK) is a metabolic fuel gauge conserved along the evolutionary scale in eukaryotes that senses changes in the intracellular AMP/ATP ratio. Recent evidence indicated an important role for AMPK in the therapeutic benefits of m ...

2009

Phosphorylation of SAS-6 by ZYG-1 is critical for centriole formation in C. elegans embryos

Pierre Gönczy, Coralie Busso, Isabelle Fluckiger

Despite being essential for proper cell division, the mechanisms governing centrosome duplication are incompletely understood and represent an important open question in cell biology. Formation of a new centriole next to each existing one is critical for c ...

2009

Phosphorylation does not prompt, nor prevent, the formation of alpha-synuclein toxic species in a rat model of Parkinson's disease

Michaël Unser, Patrick Aebischer, Bernard Schneider, Daniel Sage, Samareh Azeredo da Silveira Lajaunias

Phosphorylation is involved in numerous neurodegenerative diseases. In particular, alpha-synuclein is extensively phosphorylated in aggregates in patients suffering from synucleinopathies. However, the share of this modification in the events that lead to ...

Oxford University Press2009

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