PDBe 4qrs

X-ray diffraction
1.4Å resolution

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, B-8 alpha chain Chain: A
Molecule details ›
Chain: A
Length: 276 amino acids
Theoretical weight: 31.93 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P30460 (Residues: 25-300; Coverage: 82%)
Gene names: HLA-B, HLAB
Sequence domains:
Structure domains:
Beta-2-microglobulin Chain: B
Molecule details ›
Chain: B
Length: 100 amino acids
Theoretical weight: 11.82 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P61769 (Residues: 22-119; Coverage: 99%)
Gene names: B2M, CDABP0092, HDCMA22P
Sequence domains: Immunoglobulin C1-set domain
Structure domains: Immunoglobulins
Major immediate-early protein Chain: C
Molecule details ›
Chain: C
Length: 9 amino acids
Theoretical weight: 1.21 KDa
Source organism: Human betaherpesvirus 5
Expression system: Not provided
UniProt:
  • Canonical: Q9YRL3 (Residues: 51-59; Coverage: 8%)

Ligands and Environments

1 bound ligand:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: AUSTRALIAN SYNCHROTRON BEAMLINE MX2
Spacegroup: P212121
Unit cell:
a: 50.73Å b: 81.29Å c: 111.22Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.194 0.193 0.216
Expression systems:
  • Escherichia coli BL21(DE3)
  • Not provided