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Chromogenic Detection of Aminoglycoside Phosphotransferases [PDF]

open access: yesAntimicrobial Agents and Chemotherapy, 1998
ABSTRACT A coupled chromogenic reaction (based on an agar overlay combining NADH, pyruvate kinase, lactate dehydrogenase, phosphoenolpyruvate, ATP, and kanamycin sulfate with thiazolyl blue-phenazine methosulfate for detection of NADH consumption) was optimized for the detection of aminoglycoside phosphotransferases (APHs).
Amoroso, Ana Maria, Gutkind, G. O.
openaire   +4 more sources

Phosphoenolpyruvate:carbohydrate phosphotransferase systems of bacteria

open access: yesMicrobiological Reviews, 1993
Numerous gram-negative and gram-positive bacteria take up carbohydrates through the phosphoenolpyruvate (PEP):carbohydrate phosphotransferase system (PTS). This system transports and phosphorylates carbohydrates at the expense of PEP and is the subject of this review.
P W, Postma   +2 more
openaire   +2 more sources

Aminoglycoside 3'-phosphotransferase III, a new phosphotransferase. Resistance mechanism.

open access: yesThe Journal of Antibiotics, 1975
The aminoglycoside phosphotransferase of Pseudomonas aeruginosa 21-75 was purified by affinity chromatography using dibekacin-Sephadex 4B or lividomycin A-Sepharose 4B followed by DEAE Sephadex A-50 chromatography. It had activities of both the known aminoglycoside 3'-phosphotransferases I and II, and transferred phosphate from ATP to the 3'-hydroxyl ...
YOJI UMEZAWA   +6 more
openaire   +3 more sources

A Dual‐Functional Biohybrid Nanorobot to Synergistically Eradicate Biofilm and Degrade Antibiotic Resistance Genes

open access: yesAdvanced Science, EarlyView.
A biohybrid nanorobot integrating lytic bacteriophage N4 with Pd nanozymes is developed for targeted eradication of multidrug‐resistant E. coli biofilms. Synergistic bacterial lysis and ROS‐mediated oxidation enable simultaneous biofilm removal and antibiotic resistance genes degradation, maintaining high efficacy in complex wastewater environments ...
Junzheng Zhang   +9 more
wiley   +1 more source

Protective effects of adiponectin receptor agonists against equine lamellar endoplasmic reticulum stress

open access: yesEquine Veterinary Journal, EarlyView.
Abstract Background Lamellar endoplasmic reticulum (ER) stress occurs in hyperinsulinemia‐associated and sepsis‐related laminitis. Adiponectin is associated with reduced laminitis risk and inhibits ER stress in other species. Objectives To induce ER stress in ex vivo equine lamellar cells using pharmacological agents.
Marine A. Barnabé   +6 more
wiley   +1 more source

Genomic Insights Into Spatiotemporal Dynamics of Acquired Azithromycin Resistance Genes in Salmonella Strains Worldwide

open access: yesFood Safety and Health, EarlyView.
ABSTRACT Azithromycin has been used for clinical invasive infections caused by fluoroquinolone‐ and third‐generation cephalosporin‐resistant Salmonella, and mass drug administration with azithromycin has been used to reduce under‐5 mortality in children in some countries.
Yuhang Pei   +4 more
wiley   +1 more source

Detecting Antibiotic Resistance in Strains of Selected Gram‐Negative Bacterial Species Using Raman Spectroscopy

open access: yesJournal of Raman Spectroscopy, EarlyView.
Raman spectroscopy successfully identified antibiotic‐resistant Gram‐negative strains. Resistant strains of four bacterial species were discriminated from sensitive ones with 99.1% accuracy using PLS regression. The method allows for rapid, label‐free detection of antibiotic resistance.
Fernanda Sant Ana de Siqueira e Oliveira   +3 more
wiley   +1 more source

Assessing protein‐specific radiation damage in time‐resolved X‐ray solution‐scattering experiments at high‐brilliance synchrotrons using fast detector readout

open access: yesActa Crystallographica Section D, EarlyView.
Adenylate kinase was used to quantify how experimental parameters influence radiation damage during time‐resolved X‐ray solution scattering (TR‐XSS) at a multipurpose SAXS beamline. The study provides general guidelines for minimizing radiation artifacts in TR‐XSS.Time‐resolved X‐ray solution scattering (TR‐XSS) enables tracking of protein structural ...
Fatemeh Sabzian-Molaei   +2 more
wiley   +1 more source

Mechanistic insights into HapC: A key enzyme in prodiginine biosynthesis in Hahella chejuensis

open access: yesThe FEBS Journal, EarlyView.
HapC catalyzes prodiginine biosynthesis through coordinated movements of its ATP‐binding, substrate‐binding, and catalytic‐swivel domains. The enzyme shows tolerance toward short‐chain MAP analogs, and docking analyses reveal key residues and structural features underlying its substrate flexibility.
Yueh‐Te Chan   +10 more
wiley   +1 more source

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