6KVP

S. aureus FtsZ in complex with 3-(1-(5-bromo-4-(4-(trifluoromethyl)phenyl)oxazol-2-yl)ethoxy)-2,6-difluorobenzamide (compound 2)

Summary for 6KVP

• Entry DOI: 10.2210/pdb6kvp/pdb
• Descriptor: Cell division protein FtsZ, GUANOSINE-5'-DIPHOSPHATE, CALCIUM ION, ... (5 entities in total)
• Functional Keywords: gtpase, protein-inhibitor complex, hydrolase
• Biological source: Staphylococcus aureus
• Total number of polymer chains: 1
• Total formula weight: 32827.51

Authors

Ferrer-Gonzalez, E.,Fujita, J.,Yoshizawa, T.,Nelson, J.M.,Pilch, A.J.,Hillman, E.,Ozawa, M.,Kuroda, N.,Parhi, A.K.,LaVoie, E.J.,Matsumura, H.,Pilch, D.S. (deposition date: 2019-09-05, release date: 2020-01-15, Last modification date: 2023-11-22)

Primary citation

Ferrer-Gonzalez, E.,Fujita, J.,Yoshizawa, T.,Nelson, J.M.,Pilch, A.J.,Hillman, E.,Ozawa, M.,Kuroda, N.,Al-Tameemi, H.M.,Boyd, J.M.,LaVoie, E.J.,Matsumura, H.,Pilch, D.S.
Structure-Guided Design of a Fluorescent Probe for the Visualization of FtsZ in Clinically Important Gram-Positive and Gram-Negative Bacterial Pathogens.
Sci Rep, 9:20092-20092, 2019

PubMed Abstract: Addressing the growing problem of antibiotic resistance requires the development of new drugs with novel antibacterial targets. FtsZ has been identified as an appealing new target for antibacterial agents. Here, we describe the structure-guided design of a new fluorescent probe (BOFP) in which a BODIPY fluorophore has been conjugated to an oxazole-benzamide FtsZ inhibitor. Crystallographic studies have enabled us to identify the optimal position for tethering the fluorophore that facilitates the high-affinity FtsZ binding of BOFP. Fluorescence anisotropy studies demonstrate that BOFP binds the FtsZ proteins from the Gram-positive pathogens Staphylococcus aureus, Enterococcus faecalis, Enterococcus faecium, Streptococcus pyogenes, Streptococcus agalactiae, and Streptococcus pneumoniae with K values of 0.6-4.6 µM. Significantly, BOFP binds the FtsZ proteins from the Gram-negative pathogens Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa, and Acinetobacter baumannii with an even higher affinity (K = 0.2-0.8 µM). Fluorescence microscopy studies reveal that BOFP can effectively label FtsZ in all the above Gram-positive and Gram-negative pathogens. In addition, BOFP is effective at monitoring the impact of non-fluorescent inhibitors on FtsZ localization in these target pathogens. Viewed as a whole, our results highlight the utility of BOFP as a powerful tool for identifying new broad-spectrum FtsZ inhibitors and understanding their mechanisms of action.

PubMed: 31882782
DOI: 10.1038/s41598-019-56557-x

Experimental method

X-RAY DIFFRACTION (1.4 Å)