The Signal Transduction Protein PII Controls the Levels of the Cyanobacterial Protein PipX [PDF]
Microorganisms, 2023 Cyanobacteria, microorganisms performing oxygenic photosynthesis, must adapt their metabolic processes to environmental challenges such as day and night changes.
Asuncion Contreras +2 more
exaly +5 more sources
Distinctive Features of PipX, a Unique Signaling Protein of Cyanobacteria [PDF]
Life, 2020 PipX is a unique cyanobacterial protein identified by its ability to bind to PII and NtcA, two key regulators involved in the integration of signals of the nitrogen/carbon and energy status, with a tremendous impact on nitrogen assimilation and gene ...
Asuncion Contreras +2 more
exaly +5 more sources
Pleiotropic Effects of PipX, PipY, or RelQ Overexpression on Growth, Cell Size, Photosynthesis, and Polyphosphate Accumulation in the Cyanobacterium Synechococcus elongatus PCC7942 [PDF]
Frontiers in Microbiology, 2023 The cyanobacterial protein PipY belongs to the Pyridoxal-phosphate (PLP)-binding proteins (PLPBP/COG0325) family of pyridoxal-phosphate-binding proteins, which are represented in all three domains of life.
Asuncion Contreras +2 more
exaly +5 more sources
Regulatory Connections Between the Cyanobacterial Factor PipX and the Ribosome Assembly GTPase EngA [PDF]
Frontiers in Microbiology, 2021 Cyanobacteria, phototrophic organisms performing oxygenic photosynthesis, must adapt their metabolic processes to important environmental challenges, like those imposed by the succession of days and nights.
Asuncion Contreras +2 more
exaly +5 more sources
Mutational Analysis of the Cyanobacterial Nitrogen Regulator PipX [PDF]
PLoS ONE, 2012 PipX provides a functional link between the cyanobacterial global transcriptional regulator NtcA and the signal transduction protein P(II), a protein found in all three domains of life as integrators of signals of the nitrogen and carbon balance.
Asuncion Contreras +2 more
exaly +4 more sources
Expanding the Cyanobacterial Nitrogen Regulatory Network: The GntR-Like Regulator PlmA Interacts With the PII-PipX Complex [PDF]
Frontiers in Microbiology, 2016 Cyanobacteria, phototrophic organisms that perform oxygenic photosynthesis, perceive nitrogen status by sensing 2-oxoglutarate levels. PII, a widespread signaling protein, senses and transduces nitrogen and energy status to target proteins, regulating ...
Asuncion Contreras +2 more
exaly +4 more sources
The ribosome assembly GTPase EngA is involved in redox signaling in cyanobacteria [PDF]
Frontiers in Microbiology, 2023 Photosynthetic organisms must cope with environmental challenges, like those imposed by the succession of days and nights or by sudden changes in light intensities, that trigger global changes in gene expression and metabolism.
Antonio Llop +4 more
doaj +3 more sources
Split NanoLuc technology allows quantitation of interactions between PII protein and its receptors with unprecedented sensitivity and reveals transient interactions [PDF]
Scientific Reports, 2021 PII proteins constitute a widespread signal transduction superfamily in the prokaryotic world. The canonical PII signal proteins sense metabolic state of the cells by binding the metabolite molecules ATP, ADP and 2-oxoglutarate.
Rokhsareh Rozbeh, Karl Forchhammer
doaj +2 more sources
How Small Proteins Adjust the Metabolism of Cyanobacteria Under Stress [PDF]
BioEssays, Volume 47, Issue 3, March 2025.Cyanobacteria are powered by oxygenic photosynthesis located in extensive internal membrane systems, the thylakoids. Using carboxysomes, they assimilate organic from inorganic carbon. The integration of photosynthesis, carbon fixation, assimilation of nitrogen, and other nutrients involves several small proteins.
Alexander Kraus, Wolfgang R. Hess
wiley +2 more sources
New Phytologist, Volume 234, Issue 5, Page 1801-1816, June 2022., 2022 Summary The amount of inorganic carbon (Ci) fluctuates in aquatic environments. Cyanobacteria evolved a Ci‐concentrating mechanism (CCM) that is regulated at different levels. The regulator SbtB binds to the second messengers cAMP or c‐di‐AMP and is involved in acclimation to low Ci (LC) in Synechocystis sp. PCC 6803.
Oliver Mantovani +7 more
wiley +1 more source