Buscar
Mostrando ítems 11-20 de 31
Artículo
Artículo
A peripheral protein associated with the cis-Golgi network redistributes in the intermediate compartment upon brefeldin A treatment
(Rockefeller University Press, 1994)
Human autoantibodies offer unique tools for the study of cellular constituents since they usually recognize highly conserved components, the most difficult to detect due to their low immunogenicity. The serum from a patient ...
Artículo
Identification and characterization of a new porin gene of Klebsiella pneumoniae: Its role in β-lactam antibiotic resistance
(American Society for Microbiology, 1999)
Klebsiella pneumoniae porin genes were analyzed to detect mutations accounting for the porin deficiency observed in many β-lactam-resistant strains. PCR and Southern blot analysis revealed the existence of a third porin ...
Artículo
In vivo selection of porin-deficient mutants of Klebsiella pneumoniae with increased resistance to cefoxitin and expanded-spectrum cephalosporins
(American Society for Microbiology, 1996-02-01)
Four Klebsiella pneumoniae isolates (LB1, LB2, LB3, and LB4) with increased antimicrobial resistance were obtained from the same patient. The four isolates were indistinguishable in biotype, plasmid content, lipopolysaccharide, ...
Artículo
Uptake and intracellular activity of moxifloxacin in human neutrophils and tissue-cultured epithelial cells
(American Society for Microbiology, 1999-02-15)
The penetration by moxifloxacin of human neutrophils (polymorphonuclear leukocytes [PMN]) and tissue-cultured epithelial cells (McCoy cells) was evaluated by a fluorometric assay. At extracellular concentrations of 5 ...
Artículo
Comparison of E-test with broth microdilution and disk diffusion for susceptibility testing of coryneform bacteria
(American Society for Microbiology, 1995)
The susceptibilities of 135 coryneform bacteria isolated from clinical samples to ampicillin (AMP), cephalothin (CR), cefoxitin (FOX), cefotaxime (CTX), erythromycin (E), ciprofioxacin (CIP), tetracycline (TE), amikacin ...
Artículo
Development of resistance during antimicrobial therapy caused by insertion sequence interruption of porin genes
(American Society for Microbiology, 1999-01-01)
We have demonstrated by using an in vitro approach that interruption of the OmpK36 porin gene by insertion sequences (ISs) is a common type of mutation that causes loss of porin expression and increased resistance to ...
Artículo
hSiah2 is a new vav binding protein which inhibits Vav-mediated signaling pathways
(1999)
The hematopoietic proto-oncogene vav has been characterized as a Rac1- GDP/GTP exchanger protein which regulates cytoskeletal reorganization as well as signaling pathways leading to the activation of stress-activated protein ...
Artículo
Uptake and intracellular activity of trovafloxacin in human phagocytes and tissue-cultured epithelial cells
(American Society for Microbiology, 1997-02-01)
The penetration of trovafloxacin into human polymorphonuclear leukocytes (PMNs), human peritoneal macrophages, and tissue-cultured epithelial cells (McCoy cells) was evaluated. The cellular concentration to extracellular ...
Artículo
MsPG3, a Medicago sativa polygalacturonase gene expressed during the alfalfa-Rhizobium meliloti interaction
(National Academy of Sciences, 1998)
Polygalacturonase (PG) is one of the most important enzymes associated with plant cell wall degradation. It has been proposed to participate in the early steps of the Rhizobium-legume interaction. We have identified two ...