5MB1

STRUCTURE OF THE LECB LECTIN FROM PSEUDOMONAS AERUGINOSA STRAIN PA14 IN COMPLEX WITH 2,4,6-Trimethylphenylsulfonamide-N-methyl-L-fucopyranoside

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.65 Å
  • R-Value Free: 0.155 
  • R-Value Work: 0.132 
  • R-Value Observed: 0.133 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history. 


Literature

Glycomimetic, Orally Bioavailable LecB Inhibitors Block Biofilm Formation of Pseudomonas aeruginosa.

Sommer, R., Wagner, S., Rox, K., Varrot, A., Hauck, D., Wamhoff, E.C., Schreiber, J., Ryckmans, T., Brunner, T., Rademacher, C., Hartmann, R.W., Bronstrup, M., Imberty, A., Titz, A.

(2018) J Am Chem Soc 140: 2537-2545

  • DOI: 10.1021/jacs.7b11133
  • Primary Citation of Related Structures:  
    5MAY, 5MB1

  • PubMed Abstract: 

    • The opportunistic Gram-negative bacterium Pseudomonas aeruginosa is a leading pathogen for infections of immuno-compromised patients and those suffering from cystic fibrosis. Its ability to switch from planktonic life to aggregates, forming the so-ca ...

    The opportunistic Gram-negative bacterium Pseudomonas aeruginosa is a leading pathogen for infections of immuno-compromised patients and those suffering from cystic fibrosis. Its ability to switch from planktonic life to aggregates, forming the so-called biofilms, is a front-line mechanism of antimicrobial resistance. The bacterial carbohydrate-binding protein LecB is an integral component and necessary for biofilm formation. Here, we report a new class of drug-like low molecular weight inhibitors of the lectin LecB with nanomolar affinities and excellent receptor binding kinetics and thermodynamics. This class of glycomimetic inhibitors efficiently blocked biofilm formation of P. aeruginosa in vitro while the natural monovalent carbohydrate ligands failed. Furthermore, excellent selectivity and pharmacokinetic properties were achieved. Notably, two compounds showed good oral bioavailability, and high compound concentrations in plasma and urine were achieved in vivo.

    Organizational Affiliation: 

    Department of Pharmacy, Saarland University , D-66123 Saarbrücken, Germany.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Fucose-binding lectin PA-IILA, B, C, D114Pseudomonas aeruginosa UCBPP-PA14Mutation(s): 0 
Gene Names: lecB, PA14_20610
Find proteins for A0A0H2ZE85 (Pseudomonas aeruginosa (strain UCBPP-PA14))
Explore A0A0H2ZE85 
Go to UniProtKB:  A0A0H2ZE85
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.65 Å
  • R-Value Free: 0.155 
  • R-Value Work: 0.132 
  • R-Value Observed: 0.133 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 52.904α = 90
b = 65.251β = 90
c = 108.987γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
Aimlessdata scaling
PHASERphasing

Structure Validation

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View more in-depth experimental data

Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
COSTCOST-STSM-ECOST-STSM-BM1003-240314-042549

Revision History 

  • Version 1.0: 2017-12-20
    Type: Initial release
  • Version 1.1: 2018-03-14
    Changes: Database references
  • Version 1.2: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Data collection, Derived calculations, Structure summary