3VKL

Protease-resistant mutant form of human Galectin-8 in complex with two lactose molecules

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.55 Å
  • R-Value Free: 0.264 
  • R-Value Work: 0.208 

wwPDB Validation   3D Report Full Report


This is version 2.0 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:  
    3VKL, 3VKM, 3VKN, 3VKO, 4FQZ

  • 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-matrix interaction, malignant transformation, and cell adhesion ...

    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: 
(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Galectin-8A, B291Homo sapiensMutation(s): 0 
Gene Names: LGALS8
UniProt & NIH Common Fund Data Resources
Find proteins for O00214 (Homo sapiens)
Explore O00214 
Go to UniProtKB:  O00214
PHAROS:  O00214
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO00214
Protein Feature View
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  • Reference Sequence
Oligosaccharides

Help

Entity ID: 2
MoleculeChainsChain Length2D DiagramGlycosylation3D Interactions
beta-D-galactopyranose-(1-4)-beta-D-glucopyranoseC, D, E, F 2N/A Oligosaccharides Interaction
Glycosylation Resources
GlyTouCan:  G84224TW
GlyCosmos:  G84224TW
GlyGen:  G84224TW
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
EDO
Query on EDO
Download Ideal Coordinates CCD File 
G [auth A],
H [auth A],
I [auth A],
J [auth A],
K [auth A],
G [auth A],
H [auth A],
I [auth A],
J [auth A],
K [auth A],
L [auth A],
M [auth A],
N [auth A],
O [auth A],
P [auth A],
Q [auth A],
R [auth A],
S [auth B],
T [auth B],
U [auth B],
V [auth B],
W [auth B],
X [auth B],
Y [auth B],
Z [auth B]
1,2-ETHANEDIOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N		 Ligand Interaction
Biologically Interesting Molecules (External Reference) 1 Unique
Entity ID: 2
IDChainsNameType/Class2D Diagram3D Interactions
PRD_900004
Query on PRD_900004		C, D, E, Fbeta-lactoseOligosaccharide / Nutrient Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.55 Å
  • R-Value Free: 0.264 
  • R-Value Work: 0.208 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 69.56α = 90
b = 72.872β = 90
c = 129.689γ = 90
Software Package:
Software NamePurpose
ADSCdata collection
MOLREPphasing
CNSrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2012-09-12
    Type: Initial release
  • Version 1.1: 2013-07-03
    Changes: Database references
  • Version 1.2: 2017-08-16
    Changes: Refinement description, Source and taxonomy
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Atomic model, Data collection, Database references, Derived calculations, Structure summary