Results 41 to 50 of about 293,302 (294)

Metallochaperones regulate intracellular copper levels. [PDF]

open access: yes, 2013
Copper (Cu) is an important enzyme co-factor that is also extremely toxic at high intracellular concentrations, making active efflux mechanisms essential for preventing Cu accumulation. Here, we have investigated the mechanistic role of metallochaperones
Adams, Michael   +9 more
core   +1 more source

Dihydropyrimidine-thiones and clioquinol synergize to target beta-amyloid cellular pathologies through a metal-dependent mechanism [PDF]

open access: yes, 2017
The lack of therapies for neurodegenerative diseases arises from our incomplete understanding of their underlying cellular toxicities and the limited number of predictive model systems.
Barrasa, M. Inmaculada   +9 more
core   +1 more source

mSphere of Influence: Intermetal Competition during Manganese Toxicity

open access: yesmSphere, 2020
Julia E. Martin works in the field of metals in biology, with a focus on manganese (Mn) homeostasis in Streptococcus pneumoniae. In this mSphere of Influence article, she reflects on how the paper entitled “Role of the manganese efflux system mntE for ...
Julia E. Martin
doaj   +1 more source

CLPP-Null Eukaryotes with Excess Heme Biosynthesis Show Reduced L-arginine Levels, Probably via CLPX-Mediated OAT Activation

open access: yesBiomolecules
The serine peptidase CLPP is conserved among bacteria, chloroplasts, and mitochondria. In humans and mice, its loss causes Perrault syndrome, which presents with growth deficits, infertility, deafness, and ataxia.
Jana Key   +7 more
doaj   +1 more source

Heavy metal bioaccumulation by the important food plant, olea europaea L., in an ancient metalliferous polluted area of Cyprus [PDF]

open access: yes, 2007
Aspects of the bioaccumulation of heavy metals are reviewed and possible evidence of homeostasis is highlighted. Examination and analysis of olive (Olea europaea L.) trees growing in close proximity to a copper dominated spoil tip dating from at least ...
B Wilson   +15 more
core   +1 more source

Metallochaperones Are Needed for Mycobacterium tuberculosis and Escherichia coli Nicotinamidase-Pyrazinamidase Activity. [PDF]

open access: yes, 2020
Mycobacterium tuberculosis nicotinamidase-pyrazinamidase (PZAse) is a metalloenzyme that catalyzes conversion of nicotinamide-pyrazinamide to nicotinic acid-pyrazinoic acid. This study investigated whether a metallochaperone is required for optimal PZAse
Antiparra, R   +10 more
core   +1 more source

Mechanisms of Metal Resistance and Homeostasis in Haloarchaea [PDF]

open access: yesArchaea, 2013
Haloarchaea are the predominant microflora of hypersaline econiches such as solar salterns, soda lakes, and estuaries where the salinity ranges from 35 to 400 ppt. Econiches like estuaries and solar crystallizer ponds may contain high concentrations of metals since they serve as ecological sinks for metal pollution and also as effective traps for river
Srivastava, Pallavee, Kowshik, Meenal
openaire   +3 more sources

Cadmium and arsenic-induced-stress differentially modulates Arabidopsis root architecture, peroxisome distribution, enzymatic activities and their nitric oxide content [PDF]

open access: yes, 2020
In plant cells, cadmium (Cd) and arsenic (As) exert toxicity mainly by inducing oxidative stress through an imbalance between the production of reactive oxygen species (ROS) and reactive nitrogen species (RNS), and their detoxification. Nitric oxide (NO)
Altamura, M. M.   +4 more
core   +2 more sources

Lysosome-related Organelles as Mediators of Metal Homeostasis [PDF]

open access: yesJournal of Biological Chemistry, 2014
Metal ion assimilation is essential for all forms of life. However, organisms must properly control the availability of these nutrients within the cell to avoid inactivating proteins by mismetallation. To safeguard against an imbalance between supply and demand in eukaryotes, intracellular compartments contain metal transporters that load and unload ...
Blaby-Haas, Crysten E   +1 more
openaire   +4 more sources

Cadmium and arsenic affect root development in Oryza sativa L. negatively interacting with auxin [PDF]

open access: yes, 2018
Cadmium (Cd) and arsenic (As), non essential, but toxic, elements for animals and plants are frequently present in paddy fields. Oryza sativa L., a staple food for at least the half of world population, easily absorbs As and Cd by the root, and in this ...
Altamura, M. M.   +7 more
core   +2 more sources

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