3I8T

N-terminal CRD1 domain of mouse Galectin-4 in complex with lactose


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.224 
  • R-Value Work: 0.187 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of the mouse galectin-4 N-terminal carbohydrate-recognition domain reveals the mechanism of oligosaccharide recognition

Krejcirikova, V.Pachl, P.Fabry, M.Maly, P.Rezacova, P.Brynda, J.

(2011) Acta Crystallogr.,Sect.D 67: 204-211

  • DOI: 10.1107/S0907444911004082

  • PubMed Abstract: 
  • Galectin-4, a member of the tandem-repeat subfamily of galectins, participates in cell-membrane interactions and plays an important role in cell adhesion and modulation of immunity and malignity. The oligosaccharide specificity of the mouse galectin- ...

    Galectin-4, a member of the tandem-repeat subfamily of galectins, participates in cell-membrane interactions and plays an important role in cell adhesion and modulation of immunity and malignity. The oligosaccharide specificity of the mouse galectin-4 carbohydrate-recognition domains (CRDs) has been reported previously. In this work, the structure and binding properties of the N-terminal domain CRD1 were further investigated and the crystal structure of CRD1 in complex with lactose was determined at 2.1 Å resolution. The lactose-binding affinity was characterized by fluorescence measurements and two lactose-binding sites were identified: a high-affinity site with a K(d) value in the micromolar range (K(d1) = 600 ± 70 µM) and a low-affinity site with K(d2) = 28 ± 10 mM.


    Organizational Affiliation

    Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, vvi, Prague, Czech Republic.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Galectin-4
A
164Mus musculusMutation(s): 0 
Gene Names: Lgals4
Find proteins for Q8K419 (Mus musculus)
Go to UniProtKB:  Q8K419
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NA
Query on NA

Download SDF File 
Download CCD File 
A
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
GOL
Query on GOL

Download SDF File 
Download CCD File 
A
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
PEG
Query on PEG

Download SDF File 
Download CCD File 
A
DI(HYDROXYETHYL)ETHER
C4 H10 O3
MTHSVFCYNBDYFN-UHFFFAOYSA-N
 Ligand Interaction
LBT
Query on LBT

Download SDF File 
Download CCD File 
A
ALPHA-LACTOSE
C12 H22 O11
GUBGYTABKSRVRQ-XLOQQCSPSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
LBTKd: 600000 nM BINDINGMOAD
LBTKd: 600000 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.224 
  • R-Value Work: 0.187 
  • Space Group: P 4 21 2
Unit Cell:
Length (Å)Angle (°)
a = 90.841α = 90.00
b = 90.841β = 90.00
c = 57.104γ = 90.00
Software Package:
Software NamePurpose
HKL-3000data collection
HKL-3000data scaling
MOLREPphasing
REFMACrefinement
HKL-3000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-02-23
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2011-11-30
    Type: Database references