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Mostrando ítems 11-20 de 23
Artículo
Identification of the direct regulon of NtcA during early acclimation to nitrogen starvation in the cyanobacterium Synechocystis sp. PCC 6803
(Oxford University Press, 2017)
In cyanobacteria, nitrogen homeostasis is maintained by an intricate regulatory network around transcription factor NtcA. Although mechanisms controlling NtcA activity appear to be well understood, its regulon remains ...
Artículo
Hydrogen sulfide regulates the cytosolic/nuclear partitioning of glyceraldehyde-3-phosphate dehydrogenase by enhancing its nuclear localization
(Oxford University Press, 2017)
Hydrogen sulfide is an important signaling molecule comparable with nitric oxide and hydrogen peroxide in plants. The underlying mechanism of its action is unknown, although it has been proposed to be S-sulfhydration. This ...
Artículo
Cyt c6-3: A new isoform of photosynthetic Cyt c6 exclusive to heterocyst-forming cyanobacteria
(Oxford University Press, 2017)
All known cyanobacteria contain Cyt c6, a small soluble electron carrier protein whose main function is to transfer electrons from the Cyt b6 f complex to PSI, although it is also involved in respiration. We have previously ...
Artículo
The Deep Thioredoxome in Chlamydomonas reinhardtii: New Insights into Redox Regulation
(Elsevier, 2017)
Thiol-based redox post-translational modifications have emerged as important mechanisms of signaling and regulation in all organisms, and thioredoxin plays a key role by controlling the thiol-disulfide status of target ...
Artículo
A combinatorial strategy of alternative promoter use during differentiation of a heterocystous cyanobacterium
(Wiley, 2017-06-06)
Heterocystous cyanobacteria such as Nostoc sp. are filamentous photosynthetic organisms that, in response to nitrogen deficiency, undergo a differentiation process transforming certain, semi-regularly spaced cells into ...
Artículo
H2A monoubiquitination in Arabidopsis thaliana is generally independent of LHP1 and PRC2 activity
(BioMed Central, 2017)
Background: Polycomb group complexes PRC1 and PRC2 repress gene expression at the chromatin level in eukaryotes. The classic recruitment model of Polycomb group complexes in which PRC2-mediated H3K27 trimethylation ...
Artículo
The ciliate protist tetrahymena pyriformis as a cellular adhesion model for the pathogenic bacterium staphylococcus aureus
(Scientific Research Publishing, 2017)
Staphylococcus aureus is one of the main pathogenic agents responsible for nosocomial and community-acquired bacterial infections. The pathogenicity of this Gram-positive bacterium is ensured by its different adhesion ...
Artículo
The TOR Signaling Network in the Model Unicellular Green Alga Chlamydomonas reinhardtii
(MDPI, 2017)
Cell growth is tightly coupled to nutrient availability. The target of rapamycin (TOR) kinase transmits nutritional and environmental cues to the cellular growth machinery. TOR functions in two distinct multiprotein ...
Artículo
Intrinsically disordered inhibitor of glutamine synthetase is a functional protein with random-coil-like pKa values
(Wiley-Blackwell, 2017)
The sequential action of glutamine synthetase (GS) and glutamate synthase (GOGAT) in cyanobacteria allows the incorporation of ammonium into carbon skeletons. In the cyanobacterium Synechocystis sp. PCC 6803, the activity ...
Artículo
A universal stress protein involved in oxidative stress1 is a phosphorylation target for protein kinase CIPK6
(American Society of Plant Biologists, 2017)
Calcineurin B-like interacting protein kinases (CIPKs) decode calcium signals upon interaction with the calcium sensors calcineurin B like proteins into phosphorylation events that result into adaptation to environmental ...