X-ray diffraction
2.2Å resolution

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero trimer (preferred)
Entry contents:
3 distinct polypeptide molecules
Macromolecules (3 distinct):
Beta-2-microglobulin Chains: B, D
Molecule details ›
Chains: B, D
Length: 100 amino acids
Theoretical weight: 11.82 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
  • Canonical: P61769 (Residues: 20-119; Coverage: 100%)
Gene names: B2M, CDABP0092, HDCMA22P
Sequence domains: Immunoglobulin C1-set domain
Structure domains: Immunoglobulins
H-2 class I histocompatibility antigen, K-D alpha chain Chains: A, C
Molecule details ›
Chains: A, C
Length: 274 amino acids
Theoretical weight: 31.99 KDa
Source organism: Mus musculus
Expression system: Escherichia coli
  • Canonical: P01902 (Residues: 22-295; Coverage: 79%)
Gene names: H2-K, H2-K1
Sequence domains:
Structure domains:
Spike protein S1 Chains: P, Q
Molecule details ›
Chains: P, Q
Length: 9 amino acids
Theoretical weight: 1.05 KDa
Source organism: Middle East respiratory syndrome-related coronavirus
Expression system: Not provided
  • Canonical: K9N5Q8 (Residues: 292-300; Coverage: 1%)
Gene names: 3, S

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SSRF BEAMLINE BL17U
Spacegroup: P21
Unit cell:
a: 50.353Å b: 79.658Å c: 122.706Å
α: 90° β: 90.3° γ: 90°
R R work R free
0.202 0.201 0.231
Expression systems:
  • Escherichia coli
  • Not provided