3OYW

Crystal structure of human galectin-1 in complex with thiodigalactoside


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.167 
  • R-Value Observed: 0.171 

wwPDB Validation   3D Report Full Report


This is version 3.0 of the entry. See complete history


Literature

Galectin inhibitory disaccharides promote tumour immunity in a breast cancer model

Stannard, K.A.Collins, P.M.Ito, K.Sullivan, E.M.Scott, S.A.Gabutero, E.Darren Grice, I.Low, P.Nilsson, U.J.Leffler, H.Blanchard, H.Ralph, S.J.

(2010) Cancer Lett 

  • DOI: https://doi.org/10.1016/j.canlet.2010.08.005
  • Primary Citation of Related Structures:  
    3OY8, 3OYW

  • PubMed Abstract: 

    High level galectin-1 expression results in cancer cell evasion of the immune response, increased tumour survival and aggressive metastases. Using a galectin-1 polyclonal antibody, high levels of galectin-1 protein were shown to be expressed by breast cancer cells established from FVB/N MMTV-c-neu mice as well as by the B16F10 melanoma cell line. In mixed lymphocyte cultures using tumour cells as antigenic stimulators, addition of recombinant galectin-1 dose-dependently inhibited lymphocyte production. Disaccharides were identified that inhibited galectin-1 function and increased growth and activation of CD8(+) CTL's killing cancer cells. X-ray crystallographic structures of human galectin-1 in complex with inhibitory disaccharides revealed their mode of binding. Combining galectin-blocking carbohydrates as adjuvants with vaccine immunotherapy in vivo to promote immune responses significantly decreased tumour progression and improved the outcomes for tumour challenged mice. This is the first report showing that suitably selected galectin-1 blocking disaccharides will act as adjuvants promoting vaccine stimulated immune responses against tumours in vivo.


  • Organizational Affiliation

    School of Medical Science, Griffith University, Southport, QLD 4222, Australia. k.stannard@griffith.edu.au


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Galectin-1134Homo sapiensMutation(s): 0 
Gene Names: LGALS1
UniProt & NIH Common Fund Data Resources
Find proteins for P09382 (Homo sapiens)
Explore P09382 
Go to UniProtKB:  P09382
PHAROS:  P09382
GTEx:  ENSG00000100097 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP09382
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Galectin-1134Homo sapiensMutation(s): 0 
Gene Names: LGALS1
UniProt & NIH Common Fund Data Resources
Find proteins for P09382 (Homo sapiens)
Explore P09382 
Go to UniProtKB:  P09382
PHAROS:  P09382
GTEx:  ENSG00000100097 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP09382
Sequence Annotations
Expand
  • Reference Sequence
Oligosaccharides

Help

Entity ID: 3
MoleculeChains Length2D Diagram Glycosylation3D Interactions
beta-D-galactopyranose-(1-1)-1-thio-beta-D-galactopyranoseC [auth E],
D [auth F]
2N/AN/A
Glycosylation Resources
GlyTouCan:  G61532BD
GlyCosmos:  G61532BD
Small Molecules
Modified Residues  2 Unique
IDChains TypeFormula2D DiagramParent
CME
Query on CME
A
L-PEPTIDE LINKINGC5 H11 N O3 S2CYS
CSO
Query on CSO
A
L-PEPTIDE LINKINGC3 H7 N O3 SCYS
Biologically Interesting Molecules (External Reference) 1 Unique
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.167 
  • R-Value Observed: 0.171 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 44.368α = 90
b = 58.367β = 90
c = 111.793γ = 90
Software Package:
Software NamePurpose
PROTEUM PLUSdata collection
REFMACrefinement
SAINTdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2010-11-03
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2017-11-08
    Changes: Refinement description
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Atomic model, Data collection, Derived calculations, Non-polymer description, Structure summary
  • Version 3.0: 2020-08-12
    Changes: Atomic model, Data collection, Derived calculations, Structure summary