Fragments bound to the OXA-48 beta-lactamase: Compound 3Fragments bound to the OXA-48 beta-lactamase: Compound 3

Structural highlights

5dtt is a 4 chain structure with sequence from Klebsiella pneumoniae. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2.1000054Å
Ligands:, , ,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

Q6XEC0_KLEPN

Publication Abstract from PubMed

The spread of antibiotic resistant bacteria is a global threat that shakes the foundations of modern healthcare. beta-Lactamases are enzymes that confer resistance to beta-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 beta-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 muM and an IC50 of 18 muM.

Screening and Design of Inhibitor Scaffolds for the Antibiotic Resistance Oxacillinase-48 (OXA-48) through Surface Plasmon Resonance Screening.,Lund BA, Christopeit T, Guttormsen Y, Bayer A, Leiros HS J Med Chem. 2016 May 20. PMID:27165692[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

See Also

References

  1. Lund BA, Christopeit T, Guttormsen Y, Bayer A, Leiros HS. Screening and Design of Inhibitor Scaffolds for the Antibiotic Resistance Oxacillinase-48 (OXA-48) through Surface Plasmon Resonance Screening. J Med Chem. 2016 May 20. PMID:27165692 doi:http://dx.doi.org/10.1021/acs.jmedchem.6b00660

5dtt, resolution 2.10Å

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