4J3D image
Deposition Date 2013-02-05
Release Date 2013-04-03
Last Version Date 2024-02-28
Entry Detail
PDB ID:
4J3D
Title:
Pseudomonas aeruginosa LpxC in complex with a hydroxamate inhibitor
Biological Source:
Source Organism:
Host Organism:
Method Details:
Experimental Method:
Resolution:
2.00 Å
R-Value Free:
0.28
R-Value Work:
0.20
R-Value Observed:
0.20
Space Group:
P 1 21 1
Macromolecular Entities
Polymer Type:polypeptide(L)
Molecule:UDP-3-O-[3-hydroxymyristoyl] N-acetylglucosamine deacetylase
Gene (Uniprot):lpxC
Chain IDs:A, B
Chain Length:297
Number of Molecules:2
Biological Source:Pseudomonas aeruginosa
Primary Citation
Exploring the UDP pocket of LpxC through amino acid analogs.
Bioorg.Med.Chem.Lett. 23 2362 2367 (2013)
PMID: 23499237 DOI: 10.1016/j.bmcl.2013.02.055

Abstact

Lipopolysaccharide (LPS) biosynthesis is an attractive antibacterial target as it is both conserved and essential for the survival of key pathogenic bacteria. Lipid A is the hydrophobic anchor for LPS and a key structural component of the outer membrane of Gram-negative bacteria. Lipid A biosynthesis is performed in part by a unique zinc dependent metalloamidase, LpxC (UDP-3-O-(R-3-hydroxymyristoyl)-N-acetylglucosamine deacetylase), which catalyzes the first non-reversible step in lipid A biosynthesis. The UDP portion of the LpxC substrate-binding pocket has been relatively unexplored. We have designed and evaluated a series of hydroxamate based inhibitors which explore the SAR of substitutions directed into the UDP pocket with a range of substituted α-amino acid based linkers. We also provide the first wild type structure of Pseudomonas aeruginosa LpxC which was utilized in the design of many of these analogs.

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