2BCK

Crystal Structure of HLA-A*2402 Complexed with a telomerase peptide


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.183 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of HLA-A*2402 complexed with a telomerase peptide.

Cole, D.K.Rizkallah, P.J.Gao, F.Watson, N.I.Boulter, J.M.Bell, J.I.Sami, M.Gao, G.F.Jakobsen, B.K.

(2006) Eur.J.Immunol. 36: 170-179

  • DOI: 10.1002/eji.200535424

  • PubMed Abstract: 
  • HLA-A*2402 is the most commonly expressed HLA allele in oriental populations. It is also widely expressed in the Caucasian population, making it one of, if not the most abundant HLA I types. In order to study its structure in terms of overall fold an ...

    HLA-A*2402 is the most commonly expressed HLA allele in oriental populations. It is also widely expressed in the Caucasian population, making it one of, if not the most abundant HLA I types. In order to study its structure in terms of overall fold and peptide presentation, a soluble form of this HLA I (alpha1, alpha2, alpha3 and beta(2)m domains) has been expressed, refolded and crystallized in complex with a cancer-related telomerase peptide (VYGFVRACL), and its structure has been solved to 2.8 A resolution. The overall structure of HLA-A*2402 is virtually identical to other reported peptide-HLA I structures. However, there are distinct features observable from this structure at the HLA I peptide binding pockets. The size and depth of pocket B makes it highly suitable for binding to large aromatic side chains, which explains the high prevalence of tyrosine at peptide position 2. Also, for HLA binding at peptide position 5, there is an additional anchor point, which allows the proximal amino acids to protrude out, providing a prominent feature for TCR interaction. Finally, pocket F allows the anchor residue at position 9 to be bound unusually deeply within the HLA structure.


    Organizational Affiliation

    Nuffield Dept. of Clinical Medicine, John Radcliffe Hospital, Oxford University, Oxford, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
HLA class I histocompatibility antigen, A-24 alpha chain
A, D
294Homo sapiensGene Names: HLA-A (HLAA)
Find proteins for P05534 (Homo sapiens)
Go to Gene View: HLA-A
Go to UniProtKB:  P05534
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Beta-2-microglobulin
B, E
100Homo sapiensGene Names: B2M
Find proteins for P61769 (Homo sapiens)
Go to Gene View: B2M
Go to UniProtKB:  P61769
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Telomerase reverse transcriptase
C, F
9Homo sapiensGene Names: TERT (EST2, TCS1, TRT)
EC: 2.7.7.49
Find proteins for O14746 (Homo sapiens)
Go to Gene View: TERT
Go to UniProtKB:  O14746
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A, B, D, E
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
GOL
Query on GOL

Download SDF File 
Download CCD File 
A, B, D, E
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.183 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 125.505α = 90.00
b = 132.186β = 128.80
c = 91.197γ = 90.00
Software Package:
Software NamePurpose
MOSFLMdata reduction
CCP4data scaling
AMoREphasing
PDB_EXTRACTdata extraction
REFMACrefinement
SCALAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-01-10
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Non-polymer description, Version format compliance