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Screening and Design of Inhibitor Scaffolds for the Antibiotic Resistance Oxacillinase-48 (OXA-48) through Surface Plasmon Resonance Screening

Permanent link
https://hdl.handle.net/10037/13298
DOI
https://doi.org/10.1021/acs.jmedchem.6b00660
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Accepted manuscript version (PDF)
Date
2016-05-11
Type
Journal article
Tidsskriftartikkel
Peer reviewed

Author
Lund, Bjarte Aarmo; Christopeit, Tony; Guttormsen, Yngve; Bayer, Annette; Leiros, Hanna-Kirsti S.
Abstract
The spread of antibiotic resistant bacteria is a global threat that shakes the foundations of modern healthcare. β-Lactamases are enzymes that confer resistance to β-lactam antibiotics in bacteria, and there is a critical need for new inhibitors of these enzymes for combination therapy together with an antibiotic. With this in mind, we have screened a library of 490 fragments to identify starting points for the development of new inhibitors of the class D β-lactamase oxacillinase-48 (OXA-48) through surface plasmon resonance (SPR), dose-rate inhibition assays, and X-ray crystallography. Furthermore, we have uncovered structure–activity relationships and used alternate conformations from a crystallographic structure to grow a fragment into a more potent compound with a KD of 50 μM and an IC50 of 18 μM.
Description
This document is the Accepted Manuscript version of a Published Work that appeared in final form in Journal of Medicinal Chemistry, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.jmedchem.6b00660.
Publisher
American Chemical Society
Citation
Lund, B.A., Christopeit, T., Guttormsen, Y., Bayer, A. & Leiros, H.-K.S. (2016). Screening and Design of Inhibitor Scaffolds for the Antibiotic Resistance Oxacillinase-48 (OXA-48) through Surface Plasmon Resonance Screening. Journal of Medicinal Chemistry, 59(11), 5542-5554. https://doi.org/10.1021/acs.jmedchem.6b00660
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