New research findings on the mechanism and the ways in which methicillin-resistant golden staph (MRZS) becomes so difficult pathogen during the last 50 years.
MRZS unaffected by atibiotitsite, including beta-lactam antibiotic drugs such as penicillin.
Experts reveal allosteric center in the X-ray structure of penicillin binding protein 2a of MRZS. Allosteric center is a site of the protein, where its activity is regulated by its binding to another molecule.
Scientists have documented that allosteric reaction is triggered by a fragment of the cell wall at a distance of 6 nanometers and activates a number of structural changes that culminate in the opening of the active side of the closed structure, allowing catalyzing enzyme.
They also documented that the new beta- lactam antibiotic ceftaroline, which was recently approved by the Administration Food and Drug Administration in the U.S., you can contact center and allosteric trigger " allosteric opening " the active side.
Thus allowing another molecule ceftaroline to enter and activate the center . This prevents the function of the enzyme and results in the destruction of MRZS . This mechanism of action of the antibiotic is unprecedented and provides many important ideas for future work on drugs to combat methicillin-resistant Staphylococcus aureus .
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