Abstract
Vancomycin is a potent and broad-spectrum antibiotic that binds to the d-Ala-d-Ala moiety of the growing bacterial cell wall and kills bacteria. This fascinating binding model prompted us to design and synthesize d-Ala-d-Ala silica gels for the establishment of a new physicochemical (PC) screening method. In this report, we confirmed that vancomycin binds to d-Ala-d-Ala silica gel and can be eluted with MeOH containing 50 mM TFA. Finally, d-Ala-d-Ala silica gel enables to purify vancomycin from the culture broth of a vancomycin-producing strain, Amycolatopsis orientalis.
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