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Gut microbiota plays a crucial role in resisting the invasion of pathogens, particularly multidrug-resistant (MDR) bacteria, which pose a significant threat to public health. While exercise offers numerous health benefits, its impact on host colonization resistance remains largely unclear. In thi...

2025-02-19 | MTBLS12219 | MetaboLights

Metabolic state-reprogramming approach was extended from Gram-negative bacteria to Gram-positive bacterium methicillin-resistant Staphylococcus aureus (MRSA) for identifying desired reprogramming metabolites to synergize existing antibiotic killing to MRSA. Metabolomics comparison between MRSA an...

2024-12-12 | MTBLS11540 | MetaboLights

The discovery of antibiotics has led to the effective treatment of bacterial infections that were otherwise fatal and has had a transformative effect on modern medicine. Teixobactin is an unusual depsipeptide natural product that was recently discovered from a previously unculturable soil bacteri...

2020-04-30 | MTBLS1569 | MetaboLights
The epidemic character of community-associated methicillin resistant Staphylococcus aureus (CA-MRSA), especially the geographically widespread clone USA300, is poorly understood. USA300 isolates carry a type IV staphylococcal chromosomal cassette mec (SCCmec) element conferring -lactam antibiotic ...
ORGANISM(S): Staphylococcus aureus 
Methicillin resistance in Staphylococcus aureus depends on the production of mecA, which encodes penicillin-binding protein 2A (PBP2A), an acquired peptidoglycan transpeptidase with reduced susceptibility to beta-lactam antibiotics. Here, we show that preventing the expression of wall teichoic acids...
ORGANISM(S): Staphylococcus aureus 
Whole-genome analysis by 62-strain microarray showed variation in resistance and virulence genes on mobile genetic elements (MGEs) between 40 isolates of methicillin-resistant Staphylococcus aureus (MRSA) strain CC22-SCCmecIV but also showed (i) detection of two previously unrecognized MRSA transmis...
ORGANISM(S): Staphylococcus aureus 
Approximatively 75% of the genome of S. aureus (“core” genome) are highly conserved between strains, whereas the remaining 25% (“accessory” genome) are composed of variable regions that are mostly composed of mobile genetic elements (MGE), containing virulence and resistance genes. We have developed...
ORGANISM(S): Staphylococcus aureus 
Three types of phenotypic expression of M-CM-^_-lactam resistance has been reported in MRSA: heterogeneous-, homogeneous-, and Eagle-type resistance. Heterogeneous to homogeneous (hetero-to-homo) conversion of M-CM-^_-lactam resistance is postulated to be caused by a chromosomal mutation (chr*) toge...
ORGANISM(S): Staphylococcus aureus 
Methicillin resistant Staphylococcus aureus (MRSA) infection is becoming refractory to existing antibiotic therapy owing to the inherent ability of S. aureus to develop rapid resistance and is considered a major threat to public health. We found that a natural isolate of Bacillus pumilus from the C...
ORGANISM(S): Staphylococcus aureus 
A sucC and a sucD mutant from the Nebraska Transposon Mutant Library (NTML, Strain NE569 and NE1770) were found to be susceptible to cefoxitin and oxacillin when other mutations in TCA cycle genes did not affect their resistance to these antibiotics. The SucC strain (Strain NE569) accumulated Succin...
ORGANISM(S): Staphylococcus Aureus (ncbitaxon:1280) 
2021-03-02 | MSV000086971 | MassIVE
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