ISDA

Entry Detail

PDB ID:

6VOT

Keywords:

HYDROLASE

Title:

Crystal structure of Pseudomonas aerugonisa PBP3 complexed to gamma-lactam YU253434

Biological Source:

Source Organism:

Pseudomonas aeruginosa

Host Organism:

Escherichia coli

PDB Version:

Deposition Date:

2020-01-31

Release Date:

2020-05-13

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.40 Å

R-Value Free:

0.23

R-Value Work:

0.18

R-Value Observed:

0.18

Space Group:

P 21 21 21

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:Peptidoglycan D,D-transpeptidase FtsI
Chain IDs:A
Chain Length:538
Number of Molecules:1
Biological Source:Pseudomonas aeruginosa

UniProt ID:G3XD46 Pfam ID:PF03717, PF00905 EC:2.4.1.129

Ligand Molecules

R7G

Primary Citation

A gamma-Lactam Siderophore Antibiotic Effective against Multidrug-Resistant Gram-Negative Bacilli.

Goldberg, J.A, Nguyen, H, Kumar, V, Spencer, E.J, Hoyer, D, Marshall, E.K, Cmolik, A, O'Shea, M, Marshall, S.H, Hujer, A.M, Hujer, K.M, Rudin, S.D, Domitrovic, T.N, Bethel, C.R, Papp-Wallace, K.M, Logan, L.K, Perez, F, Jacobs, M.R, van Duin, D, Kreiswirth, B.M, Bonomo, R.A, Plummer, M.S, van den Akker, F.Show

J.Med.Chem. 63 5990 6002 (2020)

PMID: 32420736 DOI: 10.1021/acs.jmedchem.0c00255

Abstact

Treatment of multidrug-resistant Gram-negative bacterial pathogens represents a critical clinical need. Here, we report a novel γ-lactam pyrazolidinone that targets penicillin-binding proteins (PBPs) and incorporates a siderophore moiety to facilitate uptake into the periplasm. The MIC values of γ-lactam YU253434, 1, are reported along with the finding that 1 is resistant to hydrolysis by all four classes of β-lactamases. The druglike characteristics and mouse PK data are described along with the X-ray crystal structure of 1 binding to its target PBP3.

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