Vancomycin is a front-line antibiotic used for the treatment of nosocomial infections, particularly those caused by methicillin-resistant Staphylococcus aureus. Despite its clinical importance the global effects of vancomycin exposure on bacterial physiology are poorly understood. In a previous transcriptomic analysis we identified a number of Zur regulon genes which were highly but transiently up-regulated by vancomycin in Streptomyces coelicolor. Here, we show that vancomycin also induces similar zinc homeostasis systems in a range of other bacteria and demonstrate that vancomycin binds to Zn(II) in vitro. This implies that vancomycin treatment sequesters zinc from bacterial cells thereby triggering a Zur-dependent zinc starvation response. The Kd value of the binding between vancomycin and Zn(II) was calculated using a novel fluorometric assay, and NMR was used to identify the binding site. These findings highlight a new biologically relevant aspect of the chemical property of vancomycin as a zinc chelator.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4726154 | PMC |
| http://dx.doi.org/10.1038/srep19602 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Multiple Gas-Containing Renal Stones: A Case Report.
Am J Case Rep
December 2024
Department of Radiology, University of Tennessee Medical Center-Knoxville, Knoxville, TN, USA.
BACKGROUND Emphysematous urinary tract infections are rare and serious conditions that are often multifactorial in etiology and may be associated with the presence of renal stones. Diagnosis can be made by finding gas within the renal collecting system or parenchyma. However, the radiographic finding of gas within a renal stone is rare and little has been published to describe the significance of this finding, its promoting factors, and management.
View Article and Find Full Text PDFExploring in vitro efficacy of rCHAPk with antibiotic combinations, and promising findings of its therapeutic potential for clinical-originated MRSA wound infection.
Int J Biol Macromol
January 2025
Yıldız Technical University, Faculty of Science and Arts, Department of Molecular Biology and Genetics, Istanbul, Turkey. Electronic address:
The increasing threat of antimicrobial-resistant bacteria, particularly Staphylococcus aureus, which rapidly develops multidrug resistance and commonly colonizes wound surfaces, demands innovative strategies. Phage-encoded endolysins offer a dual-purpose approach as topical therapies for infectious skin wounds and synergistic agents to reduce high-dose antibiotic dependence. This study explores recombinant CHAPk (rCHAPk), efficiently synthesized within 3 h, displaying broad-spectrum antibacterial activity against 11 Gram-positive strains, including resistant variants, with rapid bactericidal kinetics.
View Article and Find Full Text PDFDetection methods for carbapenem-resistant Pseudomonas aeruginosa in surface water and wastewater.
Sci Total Environ
January 2025
National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands; Department of Biotechnology, Technical University Delft, Delft, the Netherlands. Electronic address:
Water systems can act as an important reservoir for Pseudomonas aeruginosa, which can pose public health risks during human contact. Carbapenem resistance is one of the most concerning resistances in P. aeruginosa making it a high-priority pathogen according to the World Health Organization (WHO), due to its ability to cause difficult-to-treat infections.
View Article and Find Full Text PDFDRESS Mimicking Flushing Syndrome Associated with Vancomycin: A Case Report.
Curr Drug Saf
January 2025
Department of General Medicine, All India Institute of Medical Sciences, Raipur, India.
Background: The Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS) is a serious adverse reaction that occurs weeks after the onset of drug exposure. DRESS syndrome is commonly associated with antiseizure drugs, sulfa drugs, and antibiotics.
Case Presentation: This was a case report of a 20-year-old female who suffered from DRESS due to vancomycin with symptoms similar to the Redman syndrome.
Concurrent Bacteremia and Severe Fever With Thrombocytopenia Syndrome: A Report of Two Cases.
Cureus
December 2024
Department of Emergency and Critical Care Medicine, National Hospital Organization Nagasaki Medical Center, Nagasaki, JPN.
Severe fever with thrombocytopenia syndrome (SFTS) is a tick-borne viral hemorrhagic fever caused by the severe fever with thrombocytopenia syndrome virus (SFTSV). This virus, which is transmitted through ticks, is prevalent in Asian countries, including Japan. This report describes two rare cases of SFTS with concurrent bacteremia.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!