The Signal Transduction Protein PII Controls the Levels of the Cyanobacterial Protein PipX [PDF]
Cyanobacteria, microorganisms performing oxygenic photosynthesis, must adapt their metabolic processes to environmental challenges such as day and night changes.
Antonio Llop +3 more
doaj +6 more sources
The PII protein interacts with the Amt ammonium transport and modulates nitrate/nitrite assimilation in mycobacteria [PDF]
PII proteins are signal transduction proteins that belong to a widely distributed family of proteins involved in the modulation of different metabolisms in bacteria. These proteins are homotrimers carrying a flexible loop, named T-loop, which changes its
Delfina Ensinck +6 more
doaj +5 more sources
Split NanoLuc technology allows quantitation of interactions between PII protein and its receptors with unprecedented sensitivity and reveals transient interactions [PDF]
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 +4 more sources
The Signal Transduction Protein PII Controls Ammonium, Nitrate and Urea Uptake in Cyanobacteria [PDF]
PII signal transduction proteins are widely spread among all domains of life where they regulate a multitude of carbon and nitrogen metabolism related processes.
Björn Watzer +8 more
doaj +4 more sources
Sequencing and Characterization of Novel PII Signaling Protein Gene in Microalga Haematococcus pluvialis [PDF]
The PII signaling protein is a key protein for controlling nitrogen assimilatory reactions in most organisms, but little information is reported on PII proteins of green microalga Haematococcus pluvialis. Since H.
Ruijuan Ma, Yan Li, Yinghua Lu
doaj +8 more sources
Streptococcus mutans GlnK protein: an unusual PII family member [PDF]
Streptococcus mutans is a Gram-positive bacterium present in the oral cavity, and is considered to be one of the leading causes of dental caries. S. mutans has a glnK gene, which codes for a PII-like protein that is possibly involved in the integration ...
M.E.G. Portugal +3 more
doaj +6 more sources
Arabidopsis PII Proteins Form Characteristic Foci in Chloroplasts Indicating Novel Properties in Protein Interaction and Degradation [PDF]
The PII protein is an evolutionary, highly conserved regulatory protein found in both bacteria and higher plants. In bacteria, it modulates the activity of several enzymes, transporters, and regulatory factors by interacting with them and thereby ...
Üner Kolukisaoglu +2 more
exaly +3 more sources
The Nitrogen Regulatory PII Protein (GlnB) and N-Acetylglucosamine 6-Phosphate Epimerase (NanE) Allosterically Activate Glucosamine 6-Phosphate Deaminase (NagB) in Escherichia coli. [PDF]
Amino sugars are good sources of both ammonia and fructose-6-phosphate, produced by the glucosamine 6-phosphate deaminase, NagB. NagB is known to be allosterically regulated by N -acetylglucosamine 6-phosphate (GlcNAc-6P) and the ...
Rodionova IA +5 more
europepmc +5 more sources
The signaling transduction proteins of PII superfamily are one of the ancient and highly conserved protein families in nature and widely distributed in all domains of life. Canonical PII exerts it’s signaling function via the binding of small effector molecules, including ATP, ADP, and 2-oxoglutarate (2-OG). All cyanobacteria contain a PII homologue of
Khaled A. Selim
core +4 more sources
The regulatory PII protein controls arginine biosynthesis in Arabidopsis [PDF]
In higher plants, PII is a nuclear‐encoded plastid protein which is homologous to bacterial PII signalling proteins known to be involved in the regulation of nitrogen metabolism. A reduced ornithine, citrulline and arginine accumulation was observed in two Arabidopsis PII knock‐out mutants in response to resupply after N starvation.
Ferrario-Méry, Sylvie +4 more
openaire +5 more sources

