3mr9

X-ray diffraction
1.93Å resolution

Crystal Structure of MHC class I HLA-A2 molecule complexed with HCMV pp65-495-503 nonapeptide M5A variant

Released:
Entry authors: Reiser J-B, Le Gorrec M, Chouquet A, Debeaupuis E, Echasserieau K, Saulquin X, Bonneville M, Housset D

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero trimer (preferred)
Entry contents:
3 distinct polypeptide molecules
Macromolecules (3 distinct):
HLA class I histocompatibility antigen, A alpha chain Chain: A
Molecule details ›
Chain: A
Length: 293 amino acids
Theoretical weight: 34.01 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P04439 (Residues: 25-304; Coverage: 81%)
Gene names: HLA-A, HLAA
Sequence domains:
Structure domains:
Beta-2-microglobulin Chain: B
Molecule details ›
Chain: B
Length: 100 amino acids
Theoretical weight: 11.88 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P61769 (Residues: 21-119; Coverage: 100%)
Gene names: B2M, CDABP0092, HDCMA22P
Sequence domains: Immunoglobulin C1-set domain
Structure domains: Immunoglobulins
65 kDa phosphoprotein Chain: P
Molecule details ›
Chain: P
Length: 9 amino acids
Theoretical weight: 883 Da
Source organism: Human betaherpesvirus 5
Expression system: Not provided
UniProt:
  • Canonical: Q6SW59 (Residues: 495-503; Coverage: 2%)
Gene name: UL83

Ligands and Environments

No bound ligands

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID14-2
Spacegroup: P21
Unit cell:
a: 54.02Å b: 81.1Å c: 57.34Å
α: 90° β: 113.9° γ: 90°
R-values:
R R work R free
0.208 0.209 0.266
Expression systems:
  • Escherichia coli
  • Not provided