5MTS

Complex of FimH lectin with a TazMan (thiazolylaminomannosides) family member known as potent anti-adhesive agent at 2.6 A resolution


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.250 
  • R-Value Work: 0.170 
  • R-Value Observed: 0.178 

wwPDB Validation   3D Report Full Report



Literature

Physiochemical Tuning of Potent Escherichia coli Anti-Adhesives by Microencapsulation and Methylene Homologation.

Alvarez Dorta, D.Chalopin, T.Sivignon, A.de Ruyck, J.Dumych, T.I.Bilyy, R.O.Deniaud, D.Barnich, N.Bouckaert, J.Gouin, S.G.

(2017) ChemMedChem 12: 986-998

  • DOI: 10.1002/cmdc.201700061
  • Primary Citation of Related Structures:  
    5MTS

  • PubMed Abstract: 
  • Thiazolylaminomannosides (TazMan) are FimH antagonists with anti-adhesive potential against adherent-invasive Escherichia coli (AIEC) promoting gut inflammation in patients with Crohn's disease. The lead TazMan is highly potent in vitro, but shows limited in vivo efficiency, probably due to low pH stability and water solubility ...

    Thiazolylaminomannosides (TazMan) are FimH antagonists with anti-adhesive potential against adherent-invasive Escherichia coli (AIEC) promoting gut inflammation in patients with Crohn's disease. The lead TazMan is highly potent in vitro, but shows limited in vivo efficiency, probably due to low pH stability and water solubility. We recently developed a second generation of stable TazMan, but the anti-adhesive effect was lower than the first. Herein we report a co-crystal structure of the lead TazMan in FimH, revealing that the anomeric NH group and the second thiazole moiety provide a positive hydrogen bonding interaction with a trapped water molecule, and π-stacking with Tyr48 of FimH, respectively. Consequently, we developed NeoTazMan homologated with a methylene group for low-pH and mannosidase stability with a conserved NH group and bearing various heterocyclic aglycones. Microencapsulation of the lead NeoTazMan in γ-cyclodextrin dramatically improved water solubility without disrupting the affinity for FimH or the anti-adhesive effect against AIEC isolated from patients with Crohn's disease.


    Organizational Affiliation

    LUNAM Université, CEISAM, Chimie Et Interdisciplinarité, Synthèse, Analyse, Modélisation, UMR CNRS 6230, UFR des Sciences et des Techniques, 2 rue de la Houssinière, BP 92208, 44322, Nantes Cedex 3, France.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Protein FimHAB300Escherichia coli K-12Mutation(s): 0 
Gene Names: fimHb4320JW4283
Find proteins for P08191 (Escherichia coli (strain K12))
Explore P08191 
Go to UniProtKB:  P08191
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
XKA
Query on XKA

Download Ideal Coordinates CCD File 
A, B
[2-[[(2~{S},3~{S},4~{S},5~{S},6~{R})-6-(hydroxymethyl)-3,4,5-tris(oxidanyl)oxan-2-yl]amino]-1,3-thiazol-5-yl]-(4-methyl-2-pyrazin-2-yl-1,3-thiazol-5-yl)methanone
C18 H19 N5 O6 S2
FESQRGIJCSQMRT-UFMGXSJKSA-N
 Ligand Interaction
NI
Query on NI

Download Ideal Coordinates CCD File 
A, B
NICKEL (II) ION
Ni
VEQPNABPJHWNSG-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.250 
  • R-Value Work: 0.170 
  • R-Value Observed: 0.178 
  • Space Group: P 43 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 90.277α = 90
b = 90.277β = 90
c = 97.765γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XDSdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2017-03-15
    Type: Initial release
  • Version 1.1: 2017-04-19
    Changes: Database references
  • Version 1.2: 2017-06-28
    Changes: Database references
  • Version 2.0: 2019-10-16
    Changes: Atomic model, Data collection