1sys

X-ray diffraction
2.4Å resolution

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero trimer (preferred)
PDBe Complex ID:
PDB-CPX-135263 (preferred)
Entry contents:
3 distinct polypeptide molecules
Macromolecules (3 distinct):
HLA class I histocompatibility antigen, B alpha chain Chain: A
Molecule details ›
Chain: A
Length: 276 amino acids
Theoretical weight: 31.98 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21
UniProt:
  • Canonical: P01889 (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: 11.88 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
Sorting nexin-5 Chain: C
Molecule details ›
Chain: C
Length: 9 amino acids
Theoretical weight: 1.11 KDa
Source organism: Homo sapiens
Expression system: Not provided
UniProt:
  • Canonical: Q9Y5X3 (Residues: 257-265; Coverage: 2%)
Gene name: SNX5

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU
Spacegroup: P212121
Unit cell:
a: 50.823Å b: 81.985Å c: 110.155Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.241 0.241 0.271
Expression systems:
  • Escherichia coli BL21
  • Escherichia coli
  • Not provided