Download MendeleyScreening and Design of Inhibitor Scaffolds for the Antibiotic Resistance Oxacillinase-48 (OXA-48) through Surface Plasmon Resonance Screening.
Lund, B.A., Christopeit, T., Guttormsen, Y., Bayer, A., Leiros, H.K.(2016) J Med Chem 59: 5542-5554
- PubMed: 27165692
- DOI: https://doi.org/10.1021/acs.jmedchem.6b00660
- Primary Citation of Related Structures:
5DTK, 5DTS, 5DTT, 5DVA - PubMed 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.
Organizational Affiliation:
The Norwegian Structural Biology Centre (NorStruct), Department of Chemistry, UiT The Arctic University of Norway , 9037 Tromsø, Norway.
