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Obligatory role in GTP hydrolysis for the amide carbonyl oxygen of the Mg2+-coordinating Thr of regulatory GTPases
(National Academy of Sciences, 2010-05-25)
When G-protein α subunits binds GTP and Mg2+, they transition from their inactive to their active conformation. This transition is accompanied by completion of the coordination shell of Mg2+ with electrons from six oxygens: ...
Early responses of maize seedlings to Cu stress include sharp decreases in gibberellins and jasmonates in the root apex
(Springer Wien, 2020-04)
Copper (Cu) interferes with numerous biological functions in plants, including plant growth, which is partly governed by plant hormones. In the present study, Cu stress effect on the roots of pre-emerging maize seedlings ...
An intracerebroventricular injection of amyloid-beta peptide (1–42) aggregates modifies daily temporal organization of clock factors expression, protein carbonyls and antioxidant enzymes in the rat hippocampus
(Elsevier, 2021-09)
Alzheimer disease (AD) is the most frequent form of dementia in the elderly. It is characterized by the deterioration of memory and learning. The histopathological hallmarks of AD include the presence of extracellular ...
On the roles of Mg in the activation of G proteins
(Taylor & Francis, 2010-12)
In this review, we highlight the evolution of our knowledge about the way Mg2+ participates in the activation of heterotrimeric G proteins, beginning with its requirement in hormonal stimulation of fat cell adenylyl cyclase ...
Structural and functional properties of hydration and confined water in membrane interfaces
(Elsevier Science, 2008-12)
The scope of the present review focuses on the interfacial properties of cell membranes that may establish a link between the membrane and the cytosolic components. We present evidences that the current view of the membrane ...
20S proteasome and accumulation of oxidized and ubiquitinated proteins in maize leaves subjected to cadmium stress
(Pergamon-Elsevier Science Ltd, 2007-04)
In order to examine the possible involvement of the 20S proteasome in degradation of oxidized proteins, the effect of different cadmium concentrations on its activities, protein abundance and oxidation level were studied ...
Daño oxidativo a las proteínas relacionado con metales y defensas antioxidantes en la leche maternaOxidative damage to proteins related to metals and antioxidant defenses in breastmilk
(Sociedad Española de Nutrición Parenteral y Enteral, 2017)
Complex i syndrome in myocardial stunning and the effect of adenosine
(Elsevier Science Inc, 2011-09)
Isolated rabbit hearts were exposed to ischemia (I; 15 min) and reperfusion (R; 5-30 min) in a model of stunned myocardium. I/R decreased left-ventricle O 2 consumption (46%) and malate-glutamate-supported mitochondrial ...
Complex I syndrome in myocardial stunning and the effect of adenosine
(Elsevier Science Inc., 2011-09)
Isolated rabbit hearts were exposed to ischemia (I; 15 min) and reperfusion (R; 5-30 min) in a model of stunned myocardium. I/R decreased left-ventricle O 2 consumption (46%) and malate-glutamate-supported mitochondrial ...
Alternation between dietary protein depletion and normal feeding cause liver damage in mouse
(Servicio Publicaciones Universidad Navarra, 2011-03)
The effect of frequent protein malnutrition on liver function has not been intensively examined. Thus, the effects of alternating 5 days of a protein and amino acid-free diet followed by 5 days of a complete diet repeated ...