6ATF

HLA-DRB1*1402 in complex with Vimentin59-71

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.202 
  • R-Value Work: 0.170 
  • R-Value Observed: 0.172 

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Literature

Molecular basis for increased susceptibility of Indigenous North Americans to seropositive rheumatoid arthritis.

Scally, S.W., Law, S.C., Ting, Y.T., Heemst, J.V., Sokolove, J., Deutsch, A.J., Bridie Clemens, E., Moustakas, A.K., Papadopoulos, G.K., Woude, D.V., Smolik, I., Hitchon, C.A., Robinson, D.B., Ferucci, E.D., Bernstein, C.N., Meng, X., Anaparti, V., Huizinga, T., Kedzierska, K., Reid, H.H., Raychaudhuri, S., Toes, R.E., Rossjohn, J., El-Gabalawy, H., Thomas, R.

(2017) Ann Rheum Dis 76: 1915-1923

  • DOI: 10.1136/annrheumdis-2017-211300
  • Primary Citation of Related Structures:  
    6ATF, 6ATZ, 6ATI

  • PubMed Abstract: 

    • The pathogenetic mechanisms by which HLA-DRB1 alleles are associated with anticitrullinated peptide antibody (ACPA)-positive rheumatoid arthritis (RA) are incompletely understood. RA high-risk HLA-DRB1 alleles are known to share a common motif, the 'shared susceptibility epitope (SE)' ...

    The pathogenetic mechanisms by which HLA-DRB1 alleles are associated with anticitrullinated peptide antibody (ACPA)-positive rheumatoid arthritis (RA) are incompletely understood. RA high-risk HLA-DRB1 alleles are known to share a common motif, the 'shared susceptibility epitope (SE)'. Here, the electropositive P4 pocket of HLA-DRB1 accommodates self-peptide residues containing citrulline but not arginine. HLA-DRB1 His/Phe13β stratifies with ACPA-positive RA, while His13βSer polymorphisms stratify with ACPA-negative RA and RA protection. Indigenous North American (INA) populations have high risk of early-onset ACPA-positive RA, whereby HLA-DRB1*04:04 and HLA-DRB1*14:02 are implicated as risk factors for RA in INA. However, HLA-DRB1*14:02 has a His13βSer polymorphism. Therefore, we aimed to verify this association and determine its molecular mechanism.

    Organizational Affiliation: 

    The University of Queensland Diamantina Institute, Translational Research Institute, Princess Alexandra Hospital, Brisbane, Australia.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
HLA class II histocompatibility antigen, DR alpha chainA, C [auth D]189Homo sapiensMutation(s): 0 
Gene Names: HLA-DRA, HLA-DRA1
UniProt & NIH Common Fund Data Resources
Find proteins for P01903 (Homo sapiens)
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Go to UniProtKB:  P01903
PHAROS:  P01903
GTEx:  ENSG00000204287
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
MHC class II antigenB, D [auth E]200Homo sapiensMutation(s): 0 
Gene Names: HLA-DRB1
UniProt
Find proteins for A0A0A1I7H6 (Homo sapiens)
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Go to UniProtKB:  A0A0A1I7H6
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Vimentin59-71E [auth C], F13synthetic constructMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for P08670 (Homo sapiens)
Explore P08670 
Go to UniProtKB:  P08670
PHAROS:  P08670
GTEx:  ENSG00000026025
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  • Reference Sequence
Oligosaccharides

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Entity ID: 4
MoleculeChainsChain Length2D DiagramGlycosylation3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranoseG, H2N-Glycosylation Oligosaccharides Interaction
Glycosylation Resources
GlyTouCan:  G42666HT
GlyCosmos:  G42666HT
GlyGen:  G42666HT
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Free: 0.202 
  • R-Value Work: 0.170 
  • R-Value Observed: 0.172 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 66.98α = 90
b = 77.77β = 109.52
c = 94.54γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
MOSFLMdata reduction
SCALAdata scaling
PHENIXphasing

Structure Validation

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Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
NHMRC, ARCAustralia--

Revision History  (Full details and data files)

  • Version 1.0: 2017-09-13
    Type: Initial release
  • Version 1.1: 2017-10-18
    Changes: Database references
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Atomic model, Data collection, Derived calculations, Structure summary