3VKM

Protease-resistant mutant form of Human Galectin-8 in complex with sialyllactose and lactose


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.98 Å
  • R-Value Free: 0.261 
  • R-Value Work: 0.200 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

X-ray structure of a protease-resistant mutant form of human galectin-8 with two carbohydrate recognition domains

Yoshida, H.Yamashita, S.Teraoka, M.Itoh, A.Nakakita, S.Nishi, N.Kamitori, S.

(2012) Febs J. 279: 3937-3951

  • DOI: 10.1111/j.1742-4658.2012.08753.x
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Galectin-8 is a tandem-repeat-type β-galactoside-specific animal lectin possessing N-terminal and C-terminal carbohydrate recognition domains (N-CRD and C-CRD, respectively), with a difference in carbohydrate-binding specificity, involved in cell-mat ...

    Galectin-8 is a tandem-repeat-type β-galactoside-specific animal lectin possessing N-terminal and C-terminal carbohydrate recognition domains (N-CRD and C-CRD, respectively), with a difference in carbohydrate-binding specificity, involved in cell-matrix interaction, malignant transformation, and cell adhesion. N-CRD shows strong affinity for α2-3-sialylated oligosaccharides, a feature unique to galectin-8. C-CRD usually shows lower affinity for oligosaccharides but higher affinity for N-glycan-type branched oligosaccharides than does N-CRD. There have been many structural studies on galectins with a single carbohydrate recognition domain (CRD), but no X-ray structure of a galectin containing both CRDs has been reported. Here, the X-ray structure of a protease-resistant mutant form of human galectin-8 possessing both CRDs and the novel pseudodimer structure of galectin-8 N-CRD in complexes with α2-3-sialylated oligosaccharide ligands were determined. The results revealed a difference in specificity between N-CRD and C-CRD, and provided new insights into the association of CRDs and/or molecules of galectin-8.


    Organizational Affiliation

    Life Science Research Center and Faculty of Medicine, Kagawa University, Kagawa, Japan.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Galectin-8
A, B
291Homo sapiensMutation(s): 0 
Gene Names: LGALS8
Find proteins for O00214 (Homo sapiens)
Go to Gene View: LGALS8
Go to UniProtKB:  O00214
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
BGC
Query on BGC

Download SDF File 
Download CCD File 
A, B
BETA-D-GLUCOSE
C6 H12 O6
WQZGKKKJIJFFOK-VFUOTHLCSA-N
 Ligand Interaction
GAL
Query on GAL

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

Download SDF File 
Download CCD File 
A, B
1,2-ETHANEDIOL
ETHYLENE GLYCOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
SIA
Query on SIA

Download SDF File 
Download CCD File 
A, B
O-SIALIC ACID
C11 H19 N O9
SQVRNKJHWKZAKO-YRMXFSIDSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.98 Å
  • R-Value Free: 0.261 
  • R-Value Work: 0.200 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 74.133α = 90.00
b = 80.713β = 90.00
c = 129.296γ = 90.00
Software Package:
Software NamePurpose
ADSCdata collection
CNSrefinement
HKL-2000data reduction
HKL-2000data scaling
MOLREPphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-09-12
    Type: Initial release
  • Version 1.1: 2013-07-03
    Type: Database references
  • Version 1.2: 2017-08-16
    Type: Refinement description, Source and taxonomy