4JFS image
Deposition Date 2013-02-28
Release Date 2013-09-18
Last Version Date 2023-09-20
Entry Detail
PDB ID:
4JFS
Title:
Crystal structure of a bacterial fucosidase with iminosugar inhibitor 4-epi-(+)-Codonopsinine
Biological Source:
Source Organism:
Host Organism:
Method Details:
Experimental Method:
Resolution:
2.00 Å
R-Value Free:
0.19
R-Value Work:
0.15
R-Value Observed:
0.15
Space Group:
P 1 21 1
Macromolecular Entities
Polymer Type:polypeptide(L)
Molecule:alpha-L-fucosidase
Gene (Uniprot):BT_2970
Chain IDs:A, B
Chain Length:450
Number of Molecules:2
Biological Source:Bacteroides thetaiotaomicron
Primary Citation
alpha-L-fucosidase inhibition by pyrrolidine-ferrocene hybrids: rationalization of ligand-binding properties by structural studies.
Chemistry 19 9526 9533 (2013)
PMID: 23740878 DOI: 10.1002/chem.201301001

Abstact

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.

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Primary Citation of related structures