Results 21 to 30 of about 1,742,283 (219)

Localizing Violations of the Principle of Sufficient Reason—Leibniz on the Modal Status of the PSR

open access: yesJournal of Modern Philosophy, 2022
The Principle of Sufficient Reason (PSR)—the principle that everything has a reason—plays a central role in Leibniz’s philosophical system. It is rather difficult, however, to determine what Leibniz’s attitude towards the modal status of the PSR is.
Sebastian Bender
doaj   +1 more source

Keeping in Touch with PII: PII-Interacting Proteins in Unicellular Cyanobacteria [PDF]

open access: yesPlant and Cell Physiology, 2007
PII protein is conserved among bacteria, archaea and plants, and is thought to function as a carbon/nitrogen balance sensor in these organisms. Recently, several proteins that specifically interact with PII, including a PII phosphatase (PphA), an amino acid biosynthetic enzyme (NAGK), a probable membrane channel (PamA) and a small protein (PipX) that ...
Takashi, Osanai, Kan, Tanaka
openaire   +2 more sources

Identification, molecular characterization and expression of aminopeptidase N-1 (APN-1) from Anopheles stephensi in SF9 cell line as a candidate molecule for developing a vaccine that interrupt malaria transmission

open access: yesMalaria Journal, 2020
Background According to the World Health Organization reports, billions of people around the world are at risk for malaria disease and it is important to consider the preventive strategies for protecting the people that are living in high risk areas. One
Javad Dadgar Pakdel   +3 more
doaj   +1 more source

Anti-Infective and Toxicity Properties of Carbon Based Materials: Graphene and Functionalized Carbon Nanotubes

open access: yesMicroorganisms, 2022
Recently, antimicrobial activities of various carbon-based nanomaterials against specific pathogens have become one of the most significant research interests in this field.
Naghmeh Hadidi, Maryam Mohebbi
doaj   +1 more source

The Protein-Protein Interaction Network Reveals a Novel Role of the Signal Transduction Protein PII in the Control of c-di-GMP Homeostasis in Azospirillum brasilense

open access: yesmSystems, 2020
The PII family comprises a group of widely distributed signal transduction proteins ubiquitous in prokaryotes and in the chloroplasts of plants. PII proteins sense the levels of key metabolites ATP, ADP, and 2-oxoglutarate, which affect the PII protein ...
Edileusa C. M. Gerhardt   +16 more
doaj   +1 more source

Autophosphorylation of Yeast Hexokinase PII [PDF]

open access: yesMicrobiology, 1988
Autophosphorylation of hexokinase PII was studied using an enzyme purified from Saccharomyces cerevisiae. Incubation of this enzyme preparation with [gamma-32P]ATP and Mn2+ or Mg2+ gave a phosphoprotein of molecular mass 58,000 which corresponded to hexokinase PII. D-Xylose stimulated autophosphorylation of hexokinase PII.
R, Fernández   +5 more
openaire   +2 more sources

Split NanoLuc technology allows quantitation of interactions between PII protein and its receptors with unprecedented sensitivity and reveals transient interactions

open access: yesScientific 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   +1 more source

From PII signaling to metabolite sensing: a novel 2-oxoglutarate sensor that details PII-NAGK complex formation. [PDF]

open access: yesPLoS ONE, 2013
The widespread PII signal transduction proteins are known for integrating signals of nitrogen and energy supply and regulating cellular behavior by interacting with a multitude of target proteins.
Jan Lüddecke, Karl Forchhammer
doaj   +1 more source

Structure of the PII signal transduction protein of Neisseria meningitidis at 1.85 Ȃ resolution [PDF]

open access: yes, 2006
Copyright @ 2006 International Union of CrystallographyThe PII signal transduction proteins GlnB and GlnK are implicated in the regulation of nitrogen assimilation in Escherichia coli and other enteric bacteria.
Berrow, NS   +6 more
core   +1 more source

Nitrogen regulation of protein–protein interactions and transcript levels of GlnK PII regulator and AmtB ammonium transporter homologs in Archaea [PDF]

open access: yes, 2013
Gene homologs of GlnK PII regulators and AmtB-type ammonium transporters are often paired on prokaryotic genomes, suggesting these proteins share an ancient functional relationship.
Soppa, Jörg   +6 more
core   +1 more source

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