5IB5

Crystal structure of HLA-B*27:09 complexed with the self-peptide pVIPR and Copper


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.49 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.214 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Metal-triggered conformational reorientation of a self-peptide bound to a disease-associated HLA-B*27 subtype.

Driller, R.Ballaschk, M.Schmieder, P.Uchanska-Ziegler, B.Ziegler, A.Loll, B.

(2019) J.Biol.Chem. --: --

  • DOI: 10.1074/jbc.RA119.008937
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Conformational changes of major histocompatibility complex (MHC) antigens have the potential to be recognized by T cells and may arise from polymorphic variation of the MHC molecule, the binding of modifying ligands, or both. Here, we investigated wh ...

    Conformational changes of major histocompatibility complex (MHC) antigens have the potential to be recognized by T cells and may arise from polymorphic variation of the MHC molecule, the binding of modifying ligands, or both. Here, we investigated whether metal ions could affect allele-dependent structural variation of the two minimally distinct human leukocyte antigen (HLA)-B*27:05 and HLA-B*27:09 subtypes, which exhibit differential association with the rheumatic disease ankylosing spondylitis (AS). We employed NMR spectroscopy and X-ray crystallography coupled with ensemble refinement to study the AS-associated HLA-B*27:05 subtype and the AS non-associated HLA-B* 27:09 in complex with the self-peptide pVIPR (RRKWRRWHL). Both techniques revealed that pVIPR exhibits a higher degree of flexibility when complexed with HLA-B* 27:05 than with HLA-B*27:09. Furthermore, we found that the binding of the metal ions Cu2+ or Ni2+, but not Mn2+, Zn2+, or Hg2+ affects the structure of a pVIPR-bound HLA-B*27 molecule in a subtype-dependent manner. In HLA-B*27:05, the metals triggered conformational reorientations of pVIPR, but no such structural changes were observed in the HLA-B*27:09 subtype, with or without bound metal ion. These observations provide the first demonstration that not only MHC class II, but also class I molecules can undergo metal ion-induced conformational alterations. Our findings suggest that metals may have role in triggering rheumatic diseases such as AS and also have implications for the molecular basis of metal-induced hypersensitivities and allergies.


    Organizational Affiliation

    Leibniz-institut, Berlin.,Leibniz-Institut für Molekulare Pharmakologie, Germany.,Charité-Universitätsmedizin Berlin, Germany.,Free University Berlin, Germany.,Ziegler Biosolutions, Germany.,Structural Biochemistry, Free University Berlin, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
HLA class I histocompatibility antigen, B-27 alpha chain
A, D
276Homo sapiensMutation(s): 0 
Gene Names: HLA-B (HLAB)
Find proteins for P01889 (Homo sapiens)
Go to Gene View: HLA-B
Go to UniProtKB:  P01889
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Beta-2-microglobulin
B, E
100Homo sapiensMutation(s): 0 
Gene Names: B2M
Find proteins for P61769 (Homo sapiens)
Go to Gene View: B2M
Go to UniProtKB:  P61769
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Vasoactive intestinal polypeptide receptor 1
C, F
9Homo sapiensMutation(s): 0 
Gene Names: VIPR1
Find proteins for P32241 (Homo sapiens)
Go to Gene View: VIPR1
Go to UniProtKB:  P32241
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CL
Query on CL

Download SDF File 
Download CCD File 
F
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
GOL
Query on GOL

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

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Download CCD File 
A, C, D, E, F
COPPER (II) ION
Cu
JPVYNHNXODAKFH-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.49 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.214 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 51.004α = 90.00
b = 81.677β = 96.74
c = 126.474γ = 90.00
Software Package:
Software NamePurpose
XDSdata reduction
PHENIXrefinement
XSCALEdata scaling
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2017-02-01
    Type: Initial release
  • Version 1.1: 2019-07-24
    Type: Data collection, Database references