Results 81 to 90 of about 68,245,886 (254)

Structural and biochemical analysis of a B12 superbinder

open access: yesFEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices   +3 more
wiley   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

open access: yesFEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge   +6 more
wiley   +1 more source

Solidarités environnementales, contestation transnationale et renouvellement de la politique mondiale

open access: yesLien Social et Politiques, 2007
L’ordre politique de la mondialisation est un champ conflictuel de relations économiques, culturelles et sociales au sein duquel les mouvements sociaux transnationaux construisent une nouvelle politique située au-delà des institutions traditionnelles ...
Carlos R. S. Milani, Ruthy Nadia Laniado
doaj   +1 more source

Familia y transmisión de valores

open access: yesTeoría de la Educación: Revista Interuniversitaria, 2009
RESUMEN: En este artículo se hace una breve exposición de la «situación» de la familia en el contexto de la sociedad occidental. La «crisis» de la familia y los diferentes modelos de la estructura familiar son abordados, desde una perspectiva sociológica,
Pedro ORTEGA RUIZ   +1 more
doaj   +1 more source

Online Personal Data Processing and EU Data Protection Reform. CEPS Task Force Report, April 2013 [PDF]

open access: yes, 2013
This report sheds light on the fundamental questions and underlying tensions between current policy objectives, compliance strategies and global trends in online personal data processing, assessing the existing and future framework in terms of effective ...
Luchetta, Giacomo, Irion, Kristina
core  

L‐aspartate oxidase provides new insights into fumarate reduction in anaerobic darkness in Synechocystis sp. PCC6803

open access: yesFEBS Letters, EarlyView.
Synechocystis strains deficient in succinate dehydrogenase (SDH) secrete more succinate than the WT under dark anaerobic conditions, supporting that SDH then primarily acts as SDH, not as a fumarate reductase. L‐aspartate oxidase (Laspo) from Synechocystis is functional under anaerobic conditions, reducing fumarate to succinate.
Kateryna Kukil   +3 more
wiley   +1 more source

Lightning protection system for isolate structure in Kuala Lumpur

open access: yes, 2010
This project is dealing with the new development of the probability theory that established which approach to the risk assessment analysis study that based on standard IEC 6230S series protection against lightning.
Ng, Yit Fung
core  

The ubiquitin system in normal and infected germinal center B cells

open access: yesFEBS Letters, EarlyView.
The ubiquitin system plays a central role in germinal center (GC) B cells, influencing differentiation to long‐lived memory B cells. Oncogenic gammaherpesviruses gain access to memory B cells by establishing latency in GC B cells. Mapping ubiquitin mechanisms in normal and infected GC B cells will define specific molecular circuits in B cells germane ...
Destiny Davis   +2 more
wiley   +1 more source

Etude des interactions mécaniques entre un bloc en mouvement et le milieu extérieur

open access: yesSciences, Eaux & Territoires, 2003
Les instabilités rocheuses figurent parmi les aléas rencontrés fréquemment en zone de montagne. Afin de réduire le risque associé, la stratégie dite passive vise à mettre en place des techniques de protection qui permettent de contrôler la trajectoire ...
F. NICOT
doaj  

Premiers éléments pour un dispositif de surveillance de l’état de conservation des habitats forestiers en France

open access: yesRevue Forestière Française, 2016
La directive n° 92/43/CEE du 21 mai 1992, dite « directive Habitats, Faune, Flore », a introduit dans la politique de protection de la nature en Europe une notion de conservation d’un échantillon représentatif de certains habitats naturels présents sur ...
Fabienne Benest   +3 more
doaj   +1 more source

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