3i6g

X-ray diffraction
2.2Å resolution

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero trimer (preferred)
PDBe Complex ID:
PDB-CPX-528351 (preferred)
Entry contents:
3 distinct polypeptide molecules
Macromolecules (3 distinct):
HLA class I histocompatibility antigen, A alpha chain Chains: A, D
Molecule details ›
Chains: A, D
Length: 275 amino acids
Theoretical weight: 31.85 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P04439 (Residues: 25-299; Coverage: 81%)
Gene names: HLA-A, HLAA
Sequence domains:
Structure domains:
Beta-2-microglobulin Chains: B, E
Molecule details ›
Chains: B, E
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
Membrane protein Chains: C, F
Molecule details ›
Chains: C, F
Length: 9 amino acids
Theoretical weight: 1.12 KDa
Source organism: Severe acute respiratory syndrome-related coronavirus
Expression system: Not provided
UniProt:
  • Canonical: P59596 (Residues: 88-96; Coverage: 4%)
Gene names: 5, M

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU MICROMAX-007 HF
Spacegroup: C2
Unit cell:
a: 160.871Å b: 48.847Å c: 137.242Å
α: 90° β: 110.94° γ: 90°
R-values:
R R work R free
0.207 0.205 0.246
Expression systems:
  • Escherichia coli
  • Not provided