Search Results - "Contreras, Asunción"

Analysing the Cyanobacterial PipX Interaction Network Using NanoBiT Complementation in Synechococcus elongatus PCC7942 by Jerez, Carmen, Llop, Antonio, Salinas, Paloma, Bibak, Sirine, Forchhammer, Karl, Contreras, Asunción

“…The conserved cyanobacterial protein PipX is part of a complex interaction network with regulators involved in essential processes that include metabolic…”
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Studies on the PII-PipX-NtcA Regulatory Axis of Cyanobacteria Provide Novel Insights into the Advantages and Limitations of Two-Hybrid Systems for Protein Interactions by Salinas, Paloma, Bibak, Sirine, Cantos, Raquel, Tremiño, Lorena, Jerez, Carmen, Mata-Balaguer, Trinidad, Contreras, Asunción

“…Yeast two-hybrid approaches, which are based on fusion proteins that must co-localise to the nucleus to reconstitute the transcriptional activity of GAL4, have…”
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Pleiotropic effects of PipX, PipY, or RelQ overexpression on growth, cell size, photosynthesis, and polyphosphate accumulation in the cyanobacterium Synechococcus elongatus PCC7942 by Llop, Antonio, Labella, Jose I, Borisova, Marina, Forchhammer, Karl, Selim, Khaled A, Contreras, Asunción

“…The cyanobacterial protein PipY belongs to the Pyridoxal-phosphate (PLP)-binding proteins (PLPBP/COG0325) family of pyridoxal-phosphate-binding proteins, which…”
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Regulatory Connections Between the Cyanobacterial Factor PipX and the Ribosome Assembly GTPase EngA by Jerez, Carmen, Salinas, Paloma, Llop, Antonio, Cantos, Raquel, Espinosa, Javier, Labella, Jose I, Contreras, Asunción

“…Cyanobacteria, phototrophic organisms performing oxygenic photosynthesis, must adapt their metabolic processes to important environmental challenges, like…”
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Structural basis for the regulation of NtcA-dependent transcription by proteins PipX and PII by Llácer, José L., Espinosa, Javier, Castells, Miguel A., Contreras, Asunción, Forchhammer, Karl, Rubio, Vicente, Haselkorn, Robert

“…PII, an ancient and widespread signaling protein, transduces nitrogen/carbon/energy abundance signals through interactions with target proteins. We clarify…”
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Studies on cyanobacterial protein PipY shed light on structure, potential functions, and vitamin B6‐dependent epilepsy by Tremiño, Lorena, Forcada‐Nadal, Alicia, Contreras, Asunción, Rubio, Vicente

“…The Synechococcus elongatus COG0325 gene pipY functionally interacts with the nitrogen regulatory gene pipX. As a first step toward a molecular understanding…”
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PipY, a Member of the Conserved COG0325 Family of PLP-Binding Proteins, Expands the Cyanobacterial Nitrogen Regulatory Network by Labella, José I, Cantos, Raquel, Espinosa, Javier, Forcada-Nadal, Alicia, Rubio, Vicente, Contreras, Asunción

“…PCC 7942 is a paradigmatic model organism for nitrogen regulation in cyanobacteria. Expression of genes involved in nitrogen assimilation is positively…”
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The PII-NAGK-PipX-NtcA Regulatory Axis of Cyanobacteria: A Tale of Changing Partners, Allosteric Effectors and Non-covalent Interactions by Forcada-Nadal, Alicia, Llácer, José Luis, Contreras, Asunción, Marco-Marín, Clara, Rubio, Vicente

“…P II , a homotrimeric very ancient and highly widespread (bacteria, archaea, plants) key sensor-transducer protein, conveys signals of abundance or poorness of…”
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Functional and structural characterization of PII‐like protein CutA does not support involvement in heavy metal tolerance and hints at a small‐molecule carrying/signaling role by Selim, Khaled A., Tremiño, Lorena, Marco‐Marín, Clara, Alva, Vikram, Espinosa, Javier, Contreras, Asunción, Hartmann, Marcus D., Forchhammer, Karl, Rubio, Vicente

“…CutA proteins are noncanonical members of the PII signal transduction superfamily. They are universally distributed across all domains of life, unfortunately…”
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Interactions between the Nitrogen Signal Transduction Protein PII and N-Acetyl Glutamate Kinase in Organisms That Perform Oxygenic Photosynthesis by BURILLO, Sergio, LUQUE, Ignacio, FUENTES, Inmaculada, CONTRERAS, Asuncion

“…ERRATUM ( vol. 186 , p. 5555 ) Article Usage Stats Services JB Citing Articles Google Scholar PubMed Related Content Social Bookmarking CiteULike Delicious…”
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Expanding the Cyanobacterial Nitrogen Regulatory Network: The GntR-Like Regulator PlmA Interacts with the PII-PipX Complex by Labella, Jose I, Obrebska, Anna, Espinosa, Javier, Salinas, Paloma, Forcada-Nadal, Alicia, Tremiño, Lorena, Rubio, Vicente, Contreras, Asunción

“…Cyanobacteria, phototrophic organisms that perform oxygenic photosynthesis, perceive nitrogen status by sensing 2-oxoglutarate levels. PII, a widespread…”
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Environmental control of phosphorylation pathways in a branched two-component system by López-Redondo, Maria Luisa, Moronta, Felix, Salinas, Paloma, Espinosa, Javier, Cantos, Raquel, Dixon, Ray, Marina, Alberto, Contreras, Asunción

“…NblS, the most conserved histidine kinase in cyanobacteria, regulates photosynthesis and acclimatization to a variety of environmental conditions. We used in…”
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Mutational analysis of the cyanobacterial nitrogen regulator PipX by Laichoubi, Karim Boumediene, Espinosa, Javier, Castells, Miguel Angel, Contreras, Asunción

“…PipX provides a functional link between the cyanobacterial global transcriptional regulator NtcA and the signal transduction protein P(II), a protein found in…”
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Phosphorylation-independent activation of the atypical response regulator NblR by Ruiz, Diego, Salinas, Paloma, Lopez-Redondo, Maria Luisa, Cayuela, Maria Luisa, Marina, Alberto, Contreras, Asuncion

“…1 División de Genética, Universidad de Alicante, Apartado 99, E-03080 Alicante, Spain 2 Instituto de Biomedicina de Valencia (CSIC) and CIBERER, 46010…”
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crystal structure of the complex of PII and acetylglutamate kinase reveals how PII controls the storage of nitrogen as arginine by Llácer, José L, Contreras, Asunción, Forchhammer, Karl, Marco-Marín, Clara, Gil-Ortiz, Fernando, Maldonado, Rafael, Fita, Ignacio, Rubio, Vicente

“…Photosynthetic organisms can store nitrogen by synthesizing arginine, and, therefore, feedback inhibition of arginine synthesis must be relieved in these…”
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Effects of spontaneous mutations in PipX functions and regulatory complexes on the cyanobacterium Synechococcus elongatus strain PCC 7942 by Espinosa, Javier, Castells, Miguel Angel, Laichoubi, Karim Boumediene, Forchhammer, Karl, Contreras, Asunción

“…In Synechococcus elongatus sp. PCC 7942, PipX forms complexes with P(II), a protein found in all three domains of life as an integrator of signals of the…”
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regulatory factor SipA provides a link between NblS and NblR signal transduction pathways in the cyanobacterium Synechococcus sp. PCC 7942 by Salinas, Paloma, Ruiz, Diego, Cantos, Raquel, Lopez-Redondo, Maria Luisa, Marina, Alberto, Contreras, Asunción

“…Cyanobacteria respond to environmental stress conditions by adjusting its photosynthesis machinery. When subjected to nutrient and high light stress,…”
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The ribosome assembly GTPase EngA is involved in redox signaling in cyanobacteria by Llop, Antonio, Bibak, Sirine, Cantos, Raquel, Salinas, Paloma, Contreras, Asunción

“…Photosynthetic organisms must cope with environmental challenges, like those imposed by the succession of days and nights or by sudden changes in light…”
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Studies on cyanobacterial protein PipY shed light on structure, potential functions, and vitamin B 6 -dependent epilepsy by Tremiño, Lorena, Forcada-Nadal, Alicia, Contreras, Asunción, Rubio, Vicente

“…The Synechococcus elongatus COG0325 gene pipY functionally interacts with the nitrogen regulatory gene pipX. As a first step toward a molecular understanding…”
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Convergence of two global transcriptional regulators on nitrogen induction of the stress‐acclimation gene nblA in the cyanobacterium Synechococcus sp. PCC 7942 by Luque, Ignacio, Zabulon, Gérald, Contreras, Asunción, Houmard, Jean

“…Cyanobacteria respond to environmental stress conditions by degrading their phycobilisomes, the light harvesting complexes for photosynthesis. The expression…”
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