Results 31 to 40 of about 22,711 (194)
Conformational Dynamics of AcrA Govern Multidrug Efflux Pump Assembly
ACS Infectious Diseases, 2019 Multidrug efflux pumps of pathogenic, Gram-negative bacteria comprise an innate resistance mechanism and are key contributors to the emerging global pandemic of antibiotic resistance. Several increasingly detailed cryo-electron microscopy maps have been resolved of an entire efflux pump complex, AcrAB-TolC, resulting in atomistic structural models ...
Anthony J. Hazel +6 more
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Las artes liberales: Fundamento vital para el desarrollo humano
AULA Revista de Humanidades y Ciencias SocialesEn un mundo cada vez más marcado por la especialización y la rapidez del cambio tecnológico, la reflexión sobre las artes liberales emerge como un faro de esperanza intelectual.
Claudia Acra-Despradel
doaj +3 more sources
Journal of Pure and Applied Microbiology, 2022 Klebsiella pneumoniae (K. pneumoniae) is an important pathogen associated with various infections. The emergence of antibiotic resistances, such as quinolone resistance and those due to extended-spectrum beta-lactamases (ESBL), reduces the available ...
Marwah M. Bakri
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Plasmid-instability in acrA Mutants of Escherichia coli K12 [PDF]
Journal of General Microbiology, 1974 SUMMARY: The effect of a mutation at acrA, which alters the bacterial membrane, on plasmid stability was studied. F-gal + residing in the mutant was remarkably unstable in the presence of acridine dyes or at high temperature (42°C) as compared with wild-type (acrA +) strains.
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Acriflavine-binding Capacity Controlled by the acrA Gene of Escherichia coli [PDF]
Microbiology, 1985 The acrA mutation in Escherichia coli led to a substantial increase of the acriflavine-binding capacity of the cell, whereas the related mutations acrB (gyrB) and arcC did not. Metal ions such as Na+, K+, Mg2+, Ca2+ and Al3+ effectively released the bound acriflavine, in proportion to their ionic strengths.
H, Nakamura, T, Shinya
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Ciência Florestal, 2010 Nutrient concentrations and contents in the shoot (leaves, branches, bark and wood) in a five-years-old stand of Acacia mangium Willd. (mangium), decomposition rate of mangium phyllodies (modified leaves) and nutrient efficiency use were evaluated in a ...
Dieter Liebsch, Luiz Antonio Acra
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Journal of Pure and Applied Microbiology, 2022 AcrAB-TolC is a resistance nodulation division type of efflux pump present in Enterobacteriaceae. It non-specifically effluxes antibiotics out of the bacterial cell, thus conferring drug resistance.
Priyadharshini Sekar +3 more
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Earliest fossil nematode (Mermithidae) in cretaceous Lebanese amber [PDF]
, 1994 Un nématode Mermithidae inclus dans de l'ambre provenant du Liban représente le plus ancien nématode fossile connu. Ce spécimen est assigné à l'espèce nouvelle #H. libani$ sp. n., appartenant au genre, encore actuel #Heleidomermis$ Rubtsov.
Acra, A., Acra, F., Poinar, G.O. Jr
core
Production and efficacy of a low-cost recombinant pneumococcal protein polysaccharide conjugate vaccine. [PDF]
, 2018 Streptococcus pneumoniae is the leading cause of bacterial pneumonia. Although this is a vaccine preventable disease, S. pneumoniae still causes over 1 million deaths per year, mainly in children under the age of five.
Abouelhadid, Sherif +7 more
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Controlled Delivery and Light‐Induced Release of Magic Spot Nucleotides in Escherichia coli
Angewandte Chemie International Edition, EarlyView.We synthesized photocaged, clickable and isotope‐labeled “magic spot” Nucleotides and delivered them into Escherichia coli comparing different approaches. Light‐controlled release inside living cells enabled tracking of their conversion from pppGpp to ppGpp by capillary electrophoresis mass spectrometry and revealed their impact on the growth rate of a
Christoph Popp +12 more
wiley +1 more source