1kj2

X-ray diffraction
2.71Å resolution

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero pentamer (preferred)
PDBe Complex ID:
PDB-CPX-226674 (preferred)
Entry contents:
5 distinct polypeptide molecules
Macromolecules (6 distinct):
H-2 class I histocompatibility antigen, K-B alpha chain Chains: H, I
Molecule details ›
Chains: H, I
Length: 277 amino acids
Theoretical weight: 31.97 KDa
Source organism: Mus musculus
Expression system: Escherichia coli
UniProt:
  • Canonical: P01901 (Residues: 22-298; Coverage: 80%)
Gene names: H2-K, H2-K1
Sequence domains:
Structure domains:
GTP-binding protein 1 Chains: P, Q
Molecule details ›
Chains: P, Q
Length: 8 amino acids
Theoretical weight: 949 Da
Source organism: Mus musculus
Expression system: Not provided
UniProt:
  • Canonical: O08582 (Residues: 246-253; Coverage: 1%)
Gene names: Gtpbp, Gtpbp1
Beta-2-microglobulin Chains: L, M
Molecule details ›
Chains: L, M
Length: 99 amino acids
Theoretical weight: 11.7 KDa
Source organism: Mus musculus
Expression system: Escherichia coli
UniProt:
  • Canonical: P01887 (Residues: 21-119; Coverage: 100%)
Gene name: B2m
Sequence domains: Immunoglobulin C1-set domain
Structure domains: Immunoglobulins
KB5-C20 T-Cell receptor alpha-chain Chains: A, D
Molecule details ›
Chains: A, D
Length: 111 amino acids
Theoretical weight: 12.48 KDa
Source organism: Mus musculus
Expression system: Mus musculus
Structure domains: Immunoglobulins
T-cell receptor beta chain V region E1 Chains: B, E
Molecule details ›
Chains: B, E
Length: 117 amino acids
Theoretical weight: 13.38 KDa
Source organism: Mus musculus
Expression system: Mus musculus
UniProt:
  • Canonical: P04214 (Residues: 22-118, 119-136; Coverage: 99%)
Sequence domains: Immunoglobulin V-set domain
Structure domains: Immunoglobulins

Ligands and Environments

Carbohydrate polymer : NEW Components: NAG, MAN, GAL, SIA
1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE BM30A
Spacegroup: P21
Unit cell:
a: 89.2Å b: 77.92Å c: 132.96Å
α: 90° β: 108.23° γ: 90°
R-values:
R R work R free
0.219 0.22 0.278
Expression systems:
  • Escherichia coli
  • Not provided
  • Mus musculus