4JFW

Crystal structure of a bacterial fucosidase with iminosugar inhibitor (2S,3S,4R,5S)-2-[N-(propylferrocene)]aminoethyl-5-methylpyrrolidine-3,4-diol


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.244 
  • R-Value Work: 0.207 
  • R-Value Observed: 0.209 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

alpha-L-fucosidase inhibition by pyrrolidine-ferrocene hybrids: rationalization of ligand-binding properties by structural studies.

Hottin, A.Wright, D.W.Steenackers, A.Delannoy, P.Dubar, F.Biot, C.Davies, G.J.Behr, J.B.

(2013) Chemistry 19: 9526-9533

  • DOI: https://doi.org/10.1002/chem.201301001
  • Primary Citation of Related Structures:  
    4JFS, 4JFT, 4JFU, 4JFV, 4JFW

  • PubMed Abstract: 

    Enhanced metabolism of fucose through fucosidase overexpression is a signature of some cancer types, thus suggesting that fucosidase-targetted ligands could play the role of drug-delivery vectors. Herein, we describe the synthesis of a new series of pyrrolidine-ferrocene conjugates, consisting of a L-fuco-configured dihydroxypyrrolidine as the fucosidase ligand armed with a cytotoxic ferrocenylamine moeity. Three-dimensional structures of several of these fucosidase inhibitors reveal transition-state-mimicking (3)E conformations. Elaboration with the ferrocenyl moiety results in sub-micromolar inhibitors of both bovine and bacterial fucosidases, with the 3D structure of the latter revealing electron density indicative of highly mobile alkylferrocene compounds. The best compounds show a strong antiproliferative effect, with up to 100% inhibition of the proliferation of MDA-MB-231 cancer cells at 50 μM.


  • Organizational Affiliation

    Université de Reims Champagne-Ardenne, Institut de Chimie Moléculaire de Reims, CNRS UMR 7312, UFR des Sciences Exactes et Naturelles, 51687 Reims Cedex 2, France.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
alpha-L-fucosidase
A, B, C, D
450Bacteroides thetaiotaomicron VPI-5482Mutation(s): 0 
UniProt
Find proteins for Q8A3I4 (Bacteroides thetaiotaomicron (strain ATCC 29148 / DSM 2079 / JCM 5827 / CCUG 10774 / NCTC 10582 / VPI-5482 / E50))
Explore Q8A3I4 
Go to UniProtKB:  Q8A3I4
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ8A3I4
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
H58
Query on H58

Download Ideal Coordinates CCD File 
E [auth A],
H [auth B],
L [auth C],
P [auth D]
(3alpha)-[3-({2-[(2S,3S,4R,5S)-3,4-dihydroxy-5-methylpyrrolidin-2-yl]ethyl}amino)propyl]ferrocene
C20 H30 Fe N2 O2
UONBANSHCODUCX-RDDIDZLJSA-N
SO4
Query on SO4

Download Ideal Coordinates CCD File 
F [auth A]
I [auth B]
J [auth B]
M [auth C]
N [auth C]
F [auth A],
I [auth B],
J [auth B],
M [auth C],
N [auth C],
Q [auth D],
R [auth D]
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
IMD
Query on IMD

Download Ideal Coordinates CCD File 
G [auth A],
K [auth B],
O [auth C],
S [auth D]
IMIDAZOLE
C3 H5 N2
RAXXELZNTBOGNW-UHFFFAOYSA-O
Binding Affinity Annotations 
IDSourceBinding Affinity
H58 PDBBind:  4JFW Ki: 460 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.244 
  • R-Value Work: 0.207 
  • R-Value Observed: 0.209 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 56.507α = 90
b = 189.982β = 94.09
c = 97.54γ = 90
Software Package:
Software NamePurpose
SCALAdata scaling
REFMACrefinement
PDB_EXTRACTdata extraction
XDSdata reduction
MOLREPphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2013-09-18
    Type: Initial release
  • Version 1.1: 2014-07-02
    Changes: Non-polymer description
  • Version 1.2: 2023-09-20
    Changes: Data collection, Database references, Derived calculations, Refinement description