Results 1 to 10 of about 5,029 (135)

Make and Break the Alarmone:regulation of (p)ppGpp Synthetase/Hydrolase Enzymes in Bacteria [PDF]

open access: yes, 2019
Bacteria use dedicated mechanisms to respond adequately to fluctuating environments and to optimize their chances of survival in harsh conditions. One of the major stress responses used by virtually all bacteria relies on the sharp accumulation of an ...
Hallez, Régis, Ronneau, Séverin
core   +1 more source

Les atrophies optiques héréditaires [PDF]

open access: yes, 2010
IntroductionLes atrophies optiques héréditaires forment un groupe hétérogène de maladies responsables d’une dégénérescence des cellules ganglionnaires de la rétine avec une expression phénotypique variable, allant de formes asymptomatiques jusqu’à des ...
C. Scherer   +8 more
core   +2 more sources

Standardized mitochondrial analysis gives new insights into mitochondrial dynamics and OPA1 function [PDF]

open access: yes, 2012
Mitochondria form dynamic tubular networks through processes of fission and fusion. Defect in mitochondrial dynamics lead to various pathologies, including several common and some rare neurodegenerative disorders.
A. Chevrollier   +9 more
core   +3 more sources

De la levure aux maladies neurodégénératives : Dix ans d’exploration des pathologies de la dynamique mitochondriale [PDF]

open access: yes, 2010
Ten years ago, OPA1 was identified as the major gene responsible for hereditary optic nerve degeneration, evidencing the first defect in mitochondrial network dynamics as the princeps pathophysiological mechanism in a mitochondriopathy.
A. Chevrollier   +9 more
core   +2 more sources

5'-nucleotidases, nucleosides and their distribution in the brain: pathological and therapeutic implications [PDF]

open access: yes, 2013
Elements of the nucleoside system (nucleoside levels, 5'-nucleotidases (5'NTs) and other nucleoside metabolic enzymes, nucleoside transporters and nucleoside receptors) are unevenly distributed in the brain, suggesting that nucleosides have region ...
Dobolyi, Árpád   +3 more
core  

The diguanylate cyclase AdrA regulates flagellar biosynthesis in Pseudomonas fluorescens F113 through SadB [PDF]

open access: yes, 2019
Flagellum mediated motility is an essential trait for rhizosphere colonization by pseudomonads. Flagella synthesis is a complex and energetically expensive process that is tightly regulated.
Arrebola, Eva   +8 more
core   +1 more source

OPA1 links human mitochondrial genome maintenance to mtDNA replication and distribution [PDF]

open access: yes, 2010
Eukaryotic cells harbor a small multiploid mitochondrial genome, organized in nucleoids spread within the mitochondrial network. Maintenance and distribution of mitochondrial DNA (mtDNA) are essential for energy metabolism, mitochondrial lineage in ...
A. Olichon   +18 more
core   +4 more sources

Studies on OX1 Orexin Receptor Coupling to Arachidonic Acid and Endocannabinoid Signaling [PDF]

open access: yes, 2012
Orexin A and orexin B are hypothalamic neuropeptides secreted by a relatively small group of neurons located within the hypothalamus. Orexins bind and activate two G-protein-coupled receptors termed OX1 orexin receptor and OX2 orexin receptor.
Turunen, Pauli
core  

Development of a Novel Lysophosphatidic Acid Activity Probe to Identify and Characterize New Protein Targets [PDF]

open access: yes, 2009
Lipids are categorized according to their biological function. Phospholipids, glycolipids, and cholesterol are bulk membrane lipids that offer structure and support to the cells and organelle membranes.
Cuthriell, Leah M.
core   +1 more source

Biochemical Markers of Lymphocyte Maturation [PDF]

open access: yes, 2020
KováfiÛ H., F. KováfiÛ, A. Fi‰erová, P. Zelníãková, E. Matalová: Biochemical Markers of Lymphocyte Maturation. Acta Vet Brno 2002, 71: 503-508. We studied maturation-associated changes of cell membrane Na + , K + -and Mg 2+ -ATPase activities and gamma ...
A Fi·erová   +4 more
core  

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