1OFZ

Crystal structure of fungal lectin : six-bladed beta-propeller fold and novel fucose recognition mode for aleuria aurantia lectin


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.179 
  • R-Value Work: 0.144 

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This is version 1.4 of the entry. See complete history


Literature

Crystal Structure of Fungal Lectin: Six-Bladed {Beta}-Propeller Fold and Novel Fucose Recognition Mode for Aleuria Aurantia Lectin

Wimmerova, M.Mitchell, E.Sanchez, J.F.Gautier, C.Imberty, A.

(2003) J Biol Chem 278: 27059

  • DOI: https://doi.org/10.1074/jbc.M302642200
  • Primary Citation of Related Structures:  
    1OFZ

  • PubMed Abstract: 

    Aleuria aurantia lectin is a fungal protein composed of two identical 312-amino acid subunits that specifically recognizes fucosylated glycans. The crystal structure of the lectin complexed with fucose reveals that each monomer consists of a six-bladed beta-propeller fold and of a small antiparallel two-stranded beta-sheet that plays a role in dimerization. Five fucose residues were located in binding pockets between the adjacent propeller blades. Due to repeats in the amino acid sequence, there are strong similarities between the sites. Oxygen atoms O-3, O-4, and O-5 of fucose are involved in hydrogen bonds with side chains of amino acids conserved in all repeats, whereas O-1 and O-2 interact with a large number of water molecules. The nonpolar face of each fucose residue is stacked against the aromatic ring of a Trp or Tyr amino acid, and the methyl group is located in a highly hydrophobic pocket. Depending on the precise binding site geometry, the alpha- or beta-anomer of the fucose ligand is observed bound in the crystal. Surface plasmon resonance experiments conducted on a series of oligosaccharides confirm the broad specificity of the lectin, with a slight preference for alphaFuc1-2Gal disaccharide. This multivalent carbohydrate recognition fold is a new prototype of lectins that is proposed to be involved in the host recognition strategy of several pathogenic organisms including not only the fungi Aspergillus but also the phytopathogenic bacterium Ralstonia solanacearum.


  • Organizational Affiliation

    National Centre for Biomolecular Research and Department of Biochemistry, Masaryk University, 611 37 Brno, Czech Republic.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
FUCOSE-SPECIFIC LECTIN
A, B
312Aleuria aurantiaMutation(s): 0 
UniProt
Find proteins for P18891 (Aleuria aurantia)
Explore P18891 
Go to UniProtKB:  P18891
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP18891
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
FUC
Query on FUC

Download Ideal Coordinates CCD File 
F [auth A],
H [auth A],
J [auth B],
L [auth B]
alpha-L-fucopyranose
C6 H12 O5
SHZGCJCMOBCMKK-SXUWKVJYSA-N
FUL
Query on FUL

Download Ideal Coordinates CCD File 
C [auth A]
D [auth A]
E [auth A]
G [auth A]
I [auth B]
C [auth A],
D [auth A],
E [auth A],
G [auth A],
I [auth B],
K [auth B],
M [auth B],
N [auth B]
beta-L-fucopyranose
C6 H12 O5
SHZGCJCMOBCMKK-KGJVWPDLSA-N
Binding Affinity Annotations 
IDSourceBinding Affinity
FUL PDBBind:  1OFZ Kd: 2.41e+4 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.50 Å
  • R-Value Free: 0.179 
  • R-Value Work: 0.144 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 45.969α = 90
b = 86.406β = 90.62
c = 77.849γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling
autoSHARPphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2003-07-24
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Data collection, Derived calculations, Other, Structure summary
  • Version 1.4: 2024-05-08
    Changes: Data collection, Database references, Structure summary