4G8G

Crystal Structure of C12C TCR-HA B2705-KK10


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.257 
  • R-Value Work: 0.178 
  • R-Value Observed: 0.182 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

A Molecular Basis for the Control of Preimmune Escape Variants by HIV-Specific CD8(+) T Cells.

Ladell, K.Hashimoto, M.Iglesias, M.C.Wilmann, P.G.McLaren, J.E.Gras, S.Chikata, T.Kuse, N.Fastenackels, S.Gostick, E.Bridgeman, J.S.Venturi, V.Arkoub, Z.A.Agut, H.van Bockel, D.J.Almeida, J.R.Douek, D.C.Meyer, L.Venet, A.Takiguchi, M.Rossjohn, J.Price, D.A.Appay, V.

(2013) Immunity 38: 425-436

  • DOI: 10.1016/j.immuni.2012.11.021
  • Primary Citation of Related Structures:  
    4G9D, 4G8G, 4G8I, 4G9F

  • PubMed Abstract: 
  • The capacity of the immune system to adapt to rapidly evolving viruses is a primary feature of effective immunity, yet its molecular basis is unclear. Here, we investigated protective HIV-1-specific CD8+ T cell responses directed against the immunodo ...

    The capacity of the immune system to adapt to rapidly evolving viruses is a primary feature of effective immunity, yet its molecular basis is unclear. Here, we investigated protective HIV-1-specific CD8+ T cell responses directed against the immunodominant p24 Gag-derived epitope KK10 (KRWIILGLNK263-272) presented by human leukocyte antigen (HLA)-B∗2705. We found that cross-reactive CD8+ T cell clonotypes were mobilized to counter the rapid emergence of HIV-1 variants that can directly affect T cell receptor (TCR) recognition. These newly recruited clonotypes expressed TCRs that engaged wild-type and mutant KK10 antigens with similar affinities and almost identical docking modes, thereby accounting for their antiviral efficacy in HLA-B∗2705+ individuals. A protective CD8+ T cell repertoire therefore encompasses the capacity to control TCR-accessible mutations, ultimately driving the development of more complex viral escape variants that disrupt antigen presentation.


    Organizational Affiliation

    Institute of Infection and Immunity, Cardiff University School of Medicine, Heath Park, Cardiff CF14 4XN, Wales, UK.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
HLA class I histocompatibility antigen, B-27 alpha chainA276Homo sapiensMutation(s): 0 
Gene Names: HLA-BHLAB
Find proteins for P01889 (Homo sapiens)
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Go to UniProtKB:  P01889
NIH Common Fund Data Resources
PHAROS  P01889
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Beta-2-microglobulinB100Homo sapiensMutation(s): 0 
Gene Names: B2MCDABP0092HDCMA22P
Find proteins for P61769 (Homo sapiens)
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Go to UniProtKB:  P61769
NIH Common Fund Data Resources
PHAROS  P61769
Protein Feature View
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  • Reference Sequence
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
P24C10Human immunodeficiency virus 1Mutation(s): 0 
EC: 3.4.23.16 (UniProt), 2.7.7.49 (UniProt), 2.7.7.7 (UniProt), 3.1.26.13 (UniProt), 3.1.13.2 (UniProt), 2.7.7 (UniProt), 3.1 (UniProt)
Find proteins for P03366 (Human immunodeficiency virus type 1 group M subtype B (isolate BH10))
Explore P03366 
Go to UniProtKB:  P03366
Protein Feature View
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
alpha chain C12C TCRD204Homo sapiensMutation(s): 0 
Protein Feature View
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  • Reference Sequence
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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetailsImage
beta chain C12C TCRE248Homo sapiensMutation(s): 0 
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.257 
  • R-Value Work: 0.178 
  • R-Value Observed: 0.182 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 56.682α = 90
b = 70.32β = 98.77
c = 107.767γ = 90
Software Package:
Software NamePurpose
SCALAdata scaling
PHASERphasing
PHENIXrefinement
PDB_EXTRACTdata extraction
Blu-Icedata collection
MOSFLMdata reduction

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-03-20
    Type: Initial release
  • Version 1.1: 2013-04-10
    Changes: Database references
  • Version 1.2: 2017-11-15
    Changes: Advisory, Refinement description
  • Version 1.3: 2018-01-24
    Changes: Refinement description
  • Version 1.4: 2018-04-25
    Changes: Data collection, Structure summary