Synthetic (p)ppGpp analogue is an inhibitor of stringent response in mycobacteria [PDF]
, 2017 Bacteria elicit an adaptive response against hostile conditions such as starvation and other kinds of stresses. Their ability to survive such conditions depends, in part, on stringent response pathways.
Bhardwaj, Neerupma +6 more
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Interlinked GTPase cascades provide a motif for both robust switches and oscillators [PDF]
J. R. Soc. Interface 16, 20190198 (2019), 2019 GTPases regulate a wide range of cellular processes, such as intracellular vesicular transport, signal transduction, and protein translation. These hydrolase enzymes operate as biochemical switches by toggling between an active guanosine triphosphate (GTP)-bound state and an inactive guanosine diphosphate (GDP)-bound state.
arxiv +1 more source
Phosphorylation of purine and pyrimidine nucleosides by isolated rat liver mitochondria [PDF]
, 1975 Formation of 5'-AMP, 5'-GMP, 5'-CMP and 5'UMP was confirmed in isolated rat liver mitochondria incubated with alpha-ketoglutarate, inorganic phosphate, purine nucleoside and pyrimidine nucleoside. Increased incorporation of 32Pi into ATP, GTP and UTP was
Inaba, Kozo, Oda, Takuzo
core +1 more source
Antibiotics, 2021 Bacterial quorum sensing (QS) system regulates pathogenesis, virulence, and biofilm formation, and together they contribute to nosocomial infections. Opportunistic pathogens, such as Pseudomonas aeruginosa, rely on QS for regulating virulence factors ...
Itumeleng T. Baloyi +3 more
doaj +1 more source
UV resistance of nucleosides -- an experimental approach [PDF]
, 2020 The emergence of life on Earth is a highly discussed but still unsolved question. Current research underlines the importance of environments within close proximity to the Earth's surface as they can solve long-standing problems such as polymerization of nucleotides and phosphorylation of nucleosides.
arxiv +1 more source
Loss of angiotensin II receptor expression in dopamine neurons in Parkinson’s disease correlates with pathological progression and is accompanied by increases in Nox4- and 8-OH guanosine-related nucleic acid oxidation and caspase-3 activation [PDF]
, 2015 In rodent models of Parkinsons disease (PD), dopamine neuron loss is accompanied by increased expression of angiotensin II (AngII), its type 1 receptor (AT1), and NADPH oxidase (Nox) in the nigral dopamine neurons and microglia.
Aboud, O +6 more
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Cladribine Analogues via O6-(Benzotriazolyl) Derivatives of Guanine Nucleosides
Molecules, 2015 Cladribine, 2-chloro-2′-deoxyadenosine, is a highly efficacious, clinically used nucleoside for the treatment of hairy cell leukemia. It is also being evaluated against other lymphoid malignancies and has been a molecule of interest for well over half a ...
Sakilam Satishkumar +11 more
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Longitudinal Metabolomics Profiling of Parkinson's Disease-Related α-Synuclein A53T Transgenic Mice. [PDF]
PLoS ONE, 2015 Metabolic homeostasis is critical for all biological processes in the brain. The metabolites are considered the best indicators of cell states and their rapid fluxes are extremely sensitive to cellular changes.
Xi Chen +4 more
doaj +1 more source
Scientific Reports, 2016 Most bacterial cells are stressed and as a result, some become tolerant to antibiotics by entering a dormant state known as persistence. The key intracellular metabolite that has been linked to this persister state is guanosine tetraphosphate (ppGpp ...
N. Chowdhury, Brian W. Kwan, T. Wood
semanticscholar +1 more source
Cyclic nucleotide specificity of the activator and catalytic sites of a cGMP-stimulated cGMP phosphodiesterase from Dictyostelium discoideum [PDF]
, 1985 The cellular slime mold Dictyostelium discoideum has an intracellular phosphodiesterase which specifically hydrolyzes cGMP. The enzyme is activated by low cGMP concentrations, and is involved in the reduction of chemoattractant-mediated elevations of ...
Baraniak, Janina, +8 more
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