5TW2

Structure of mouse CD1d with bound alpha-galactosylsphingamide JG168


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.75 Å
  • R-Value Free: 0.221 
  • R-Value Work: 0.203 
  • R-Value Observed: 0.203 

wwPDB Validation   3D Report Full Report



Literature

Galactosylsphingamides: new alpha-GalCer analogues to probe the F'-pocket of CD1d.

Guillaume, J.Wang, J.Janssens, J.Remesh, S.G.Risseeuw, M.D.P.Decruy, T.Froeyen, M.Elewaut, D.Zajonc, D.M.Calenbergh, S.V.

(2017) Sci Rep 7: 4276-4276

  • DOI: 10.1038/s41598-017-04461-7
  • Primary Citation of Related Structures:  
    5TW2, 5TW5

  • PubMed Abstract: 
  • Invariant Natural Killer T-cells (iNKT-cells) are an attractive target for immune response modulation, as upon CD1d-mediated stimulation with KRN7000, a synthetic α-galactosylceramide, they produce a vast amount of cytokines. Here we present a synthe ...

    Invariant Natural Killer T-cells (iNKT-cells) are an attractive target for immune response modulation, as upon CD1d-mediated stimulation with KRN7000, a synthetic α-galactosylceramide, they produce a vast amount of cytokines. Here we present a synthesis that allows swift modification of the phytosphingosine side chain by amidation of an advanced methyl ester precursor. The resulting KRN7000 derivatives, termed α-galactosylsphingamides, were evaluated for their capacity to stimulate iNKT-cells. While introduction of the amide-motif in the phytosphingosine chain is tolerated for CD1d binding and TCR recognition, the studied α-galactosylsphingamides showed compromised antigenic properties.


    Organizational Affiliation

    Laboratory for Medicinal Chemistry (FFW), Faculty of Pharmaceutical Sciences, UGent, Ottergemsesteenweg 460, B-9000, Ghent, Belgium. Serge.vancalenbergh@ugent.be.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Antigen-presenting glycoprotein CD1d1A285Mus musculusMutation(s): 1 
Gene Names: Cd1d1Cd1.1
Find proteins for P11609 (Mus musculus)
Explore P11609 
Go to UniProtKB:  P11609
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Beta-2-microglobulinB99Mus musculusMutation(s): 0 
Gene Names: B2m
Find proteins for P01887 (Mus musculus)
Explore P01887 
Go to UniProtKB:  P01887
NIH Common Fund Data Resources
IMPC  MGI:88127
Protein Feature View
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  • Reference Sequence
Oligosaccharides

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Entity ID: 3
MoleculeChainsChain Length2D Diagram Glycosylation3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose
C
3 N-Glycosylation Oligosaccharides Interaction
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
7LP
Query on 7LP

Download Ideal Coordinates CCD File 
A
(5R,6S,7S)-5,6-dihydroxy-7-(octanoylamino)-N-(6-phenylhexyl)-8-{[(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl]oxy}octanamide
C34 H58 N2 O10
GAPCJLRKOKSZTA-RMRXMYJTSA-N
 Ligand Interaction
PLM
Query on PLM

Download Ideal Coordinates CCD File 
A
PALMITIC ACID
C16 H32 O2
IPCSVZSSVZVIGE-UHFFFAOYSA-N
 Ligand Interaction
NAG
Query on NAG

Download Ideal Coordinates CCD File 
A
2-acetamido-2-deoxy-beta-D-glucopyranose
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.75 Å
  • R-Value Free: 0.221 
  • R-Value Work: 0.203 
  • R-Value Observed: 0.203 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 42.203α = 90
b = 107.466β = 90
c = 109.55γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data collection
SCALEPACKdata scaling
PHASERphasing
PDB_EXTRACTdata extraction
HKLdata reduction

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

  • Deposited Date: 2016-11-11 
  • Released Date: 2017-09-20 
  • Deposition Author(s): Zajonc, D.M., Wang, J.

Revision History 

  • Version 1.0: 2017-09-20
    Type: Initial release
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Atomic model, Data collection, Database references, Derived calculations, Structure summary