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Potential and Significance of Ammonium Production from Helicobacter pylori
Glutamine and urea, abundant in body fluids or plasma, yield net ammonium ions upon hydrolysis by γ-glutamyl transpeptidase (y-GTP) and urease, respectively, and these two enzymes are largely… Expand
Neuronal Cell Protection Activity of Macrolactin A Produced by Actinomadura sp.
Macrolactin A, 24-membered macrolide, was isolated from the culture broth of Actinomadura sp. as a neuronal cell protecting substance. In the cell assay, this compound inhibited glutamate toxicity in… Expand
Chemotaxonomic and phylogenetic analyses of Sphingomonas strains isolated from ears of plants in the family Gramineae and a proposal of Sphingomonas roseoflava sp. nov.
- N. Yun, Y. Shin, Se-Young Hwang, H. Kuraishi, J. Sugiyama
- Biology, Medicine
- The Journal of general and applied microbiology
- 1 February 2000
Phylogenetic analysis using 16S rRNA gene base sequences revealed that all the isolates were placed in the phylogenetic group of Sphingomonas paucimobilis in the alpha-4 subclass of Proteobacteria. Expand
Pathogenetic Impact of Vacuolar Degeneration by Accelerated Transport of Helicobacter pylori VacA
Data indicate that the cell's tolerance of VacA transport may be critical for vacuolar degeneration and may be changeable during H. pylori inhabitation, and this agent's uptake was markedly increased by this agent, similar to that found in cells with Nabutyrate. Expand
Development of a chemiluminometric immunosensor array for on-site monitoring of genetically modified organisms
Abstract Genetically modified organisms (GMOs) have been mainly developed for mass production of agricultural plants; however, there are concerns that transgenic crops might cause side effects on… Expand
N-phenethyl-2-phenylacetamide isolated from Xenorhabdus nematophilus induces apoptosis through caspase activation and calpain-mediated Bax cleavage in U937 cells.
The apoptotic effects of NPPA may be related, in part to the caspase-3 activation, the down-regulation of XIAP, and Bax cleavage mediated by casp enzyme-dependent calpain activation. Expand
ELISA-on-a-chip for on-site, rapid determination of anti-rabies virus antibodies in canine serum
Abstract Massive pet vaccination has been needed in most countries to control rabies virus dissemination, and the antibody produced in the body must be monitored. To this end, standard analytical… Expand
Purification and properties of gamma-glutamyl transpeptidase from Bacillus sp. KUN-17
-Glutamyl transpeptidase (-GTP; EC 220.127.116.11) present in the culture filtrate of Bacillus sp. KUN-17 was purified 400-fold through a consecutive procedure including organic precipitation and column… Expand
Purification and Characterization of Antistaphylococcal Substance from Pseudomonas sp. KUH-001
A bacterium producing unique antistaphylococcal substance (ASS) was isolated from soil samples. The isolated strain KUH-001 was identified to belong to Pseudomonas species from the characteristic… Expand
Characteristics of Peptide Assimilation by Helicobacter pylori: Evidence for Involvement of Cell Surface Peptidase
Observations strongly suggest that, regardless of a presumptive peptide transport system, peptide assimilation of H. plori appears to be highly dependent upon milieu conditions, due to unique peptidase exhibition on the cell surface. Expand