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Gastrokine 1 (GKN1) is highly expressed in gastric tissue and is secreted into the stomach but is not expressed in gastric cancer. GKN1 belongs to the BRICHOS domain family and plays a major role in maintaining gastric mucosa integrity. We previously demonstrated that a recombinant human GKN1 protein was able to interact with the amyloid precursor protein (APP) and was endowed with an anti-amyloidogenic...
AMP18 is a stomach-specific secreted protein expressed in normal gastric mucosa but absent in gastric cancer. AMP18 plays a major role in maintaining gastric mucosa integrity and is characterized by the presence of a BRICHOS domain consisting of about 100 amino acids, present also in several unrelated proteins, and probably endowed with a chaperon-like activity.In this work, we exploited a functional...
The eukaryotic translation elongation factor 1A (eEF1A) is a moonlighting protein that besides to its canonical role in protein synthesis is also involved in many other cellular processes such as cell survival and apoptosis. In a previous work, we identified eEF1A Raf-mediated phosphorylation sites and defined their role in the regulation of eEF1A half-life and apoptosis of human cancer cells. We...
Gastrokine 1 (GKN1) is a stomach-specific protein expressed in normal gastric tissue but absent in gastric cancer. GKN1 plays a major role in maintaining gastric mucosa integrity and is characterized by the presence of a BRICHOS domain consisting of about 100 amino acids also found in several unrelated proteins associated with major human diseases like BRI2, related to familial British and Danish...
The effect of pulvomycin on the biochemical and fluorescence spectroscopic properties of the archaeal elongation factor 1α from Sulfolobus solfataricus (SsEF-1α), the functional analog of eubacterial EF-Tu, was investigated. The antibiotic was able to reduce in vitro the rate of protein synthesis however, the concentration of pulvomycin leading to 50% inhibition (173 μM) was two order of magnitude...
The eukaryotic translation elongation factor 1A (eEF1A), besides to its canonical role in protein synthesis, is also involved in several other cellular processes, depending on changes in cellular location, cell type, concentration of ligands, substrates or cofactors. Therefore eEF1A is a moonlighting protein that participates to a network of molecular interactions involving its structural domains...
The D60A mutant of the elongation factor (EF) 1α from Sulfolobus solfataricus (Ss), was obtained as heterologous expressed protein and characterised. This substitution was carried out in order to analyse the involvement of this evolutionally conserved amino acid position in the interaction between the elongation factor and guanosine nucleotides and in the coordination of magnesium ions. The expression...
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