1ULD

CGL2 in complex with blood group H type II


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.218 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure and Functional Analysis of the Fungal Galectin CGL2

Walser, P.J.Haebel, P.W.Kuenzler, M.Sargent, D.Kues, U.Aebi, M.Ban, N.

(2004) STRUCTURE 12: 689-702

  • DOI: 10.1016/j.str.2004.03.002
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Recognition of and discrimination between potential glyco-substrates is central to the function of galectins. Here we dissect the fundamental parameters responsible for such selectivity by the fungal representative, CGL2. The 2.1 A crystal structure ...

    Recognition of and discrimination between potential glyco-substrates is central to the function of galectins. Here we dissect the fundamental parameters responsible for such selectivity by the fungal representative, CGL2. The 2.1 A crystal structure of CGL2 and five substrate complexes reveal that this prototype galectin achieves increased substrate specificity by accommodating substituted oligosaccharides of the mammalian blood group A/B type in an extended binding cleft. Kinetic studies on wild-type and mutant CGL2 proteins demonstrate that the tetrameric organization is essential for functionality. The geometric constraints due to the orthogonal orientation of the four binding sites have important consequences on substrate binding and selectivity.


    Related Citations: 
    • Crystallography & NMR system: A new software suite for macromolecular structure determination.
      Brunger, A.T.,Adams, P.D.,Clore, G.M.,DeLano, W.L.,Gros, P.,Grosse-Kunstleve, R.W.,Jiang, J.S.,Kuszewski, J.,Nilges, M.,Pannu, N.S.,Read, R.J.,Rice, L.M.,Simonson, T.,Warren, G.L.
      (1998) ACTA CRYSTALLOGR.,SECT.D 54: 905


    Organizational Affiliation

    Institute of Microbiology, Swiss Federal Institute of Technology, Schmelzbergstrasse 7, CH-8092, Zurich, Switzerland.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
galectin-2
A, B, C, D
150Coprinopsis cinereaMutation(s): 0 
Gene Names: Cgl2
Find proteins for Q9P4R8 (Coprinopsis cinerea)
Go to UniProtKB:  Q9P4R8
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
FUC
Query on FUC

Download SDF File 
Download CCD File 
A, B, C, D
ALPHA-L-FUCOSE
C6 H12 O5
SHZGCJCMOBCMKK-SXUWKVJYSA-N
 Ligand Interaction
GAL
Query on GAL

Download SDF File 
Download CCD File 
A, B, C, D
BETA-D-GALACTOSE
C6 H12 O6
WQZGKKKJIJFFOK-FPRJBGLDSA-N
 Ligand Interaction
NAG
Query on NAG

Download SDF File 
Download CCD File 
A, B, C, D
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.218 
  • Space Group: P 31 1 2
Unit Cell:
Length (Å)Angle (°)
a = 113.613α = 90.00
b = 113.613β = 90.00
c = 122.329γ = 120.00
Software Package:
Software NamePurpose
DENZOdata reduction
MOLREPphasing
CNSrefinement
SCALEPACKdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2004-04-20
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance