نتایج جستجو برای: acrab tolc efflux pump
تعداد نتایج: 78937 فیلتر نتایج به سال:
The emergence of multidrug and extensively drug-resistant pathogenic bacteria able to resist the action a wide range antibiotics is becoming growing problem for public health. search new compounds with potential help in reversion bacterial resistance plays an important role current medicinal chemistry research. Under this scope, efflux pumps are responsible antimicrobials, their inhibition coul...
The outer membrane proteins TolC and EefC from Enterobacter aerogenes are involved in multidrug resistance as part of two resistance-nodulation-division efflux systems. To gain more understanding in the molecular mechanism underlying drug efflux, we have undertaken an electrophysiological characterization of the channel properties of these two proteins. TolC and EefC were purified in their nati...
Fluoroquinolone resistance can cause major clinical problems. Here, we investigated fluoroquinolone resistance mechanisms in a clinical Escherichia coli isolate, HUE1, which had no mutations quinolone resistance-determining regions (QRDRs) of DNA gyrase and topoisomerase IV. HUE1 demonstrated MICs that exceeded the breakpoints for ciprofloxacin, levofloxacin, and norfloxacin. HUE1 harbored oqxA...
Persisters are dormant phenotypic variants of regular cells that are tolerant to antibiotics and play an important role in recalcitrance of chronic infections to therapy. Persisters can be produced stochastically in a population untreated with antibiotics. At the same time, a deterministic component of persister formation has also been documented in a population of cells with DNA damaged by flu...
Isogenic strains containing insertional disruptions of 10 Haemophilus influenzae Rd genes were investigated for their effects on the susceptibility of the organism to various classes of antimicrobial compounds. MIC results show that HI1462, which encodes an Escherichia coli TolC homolog, is the third component of the H. influenzae AcrAB pump.
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