1ktd

X-ray diffraction
2.4Å resolution

CRYSTAL STRUCTURE OF CLASS II MHC MOLECULE IEK BOUND TO PIGEON CYTOCHROME C PEPTIDE

Released:
Source organisms:
Primary publication:
Structural basis of cytochrome c presentation by IE(k).
J Exp Med 195 1043-52 (2002)
PMID: 11956295

Function and Biology Details

Structure analysis Details

Assemblies composition:
hetero dimer (preferred)
hetero tetramer
PDBe Complex ID:
PDB-CPX-132220 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
H-2 class II histocompatibility antigen, E-D alpha chain Chains: A, C
Molecule details ›
Chains: A, C
Length: 182 amino acids
Theoretical weight: 21.17 KDa
Source organism: Mus musculus
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: P01904 (Residues: 26-207; Coverage: 79%)
Gene name: H2-Ea
Sequence domains:
Structure domains:
Cytochrome c; H-2 class II histocompatibility antigen, E-B beta chain Chains: B, D
Molecule details ›
Chains: B, D
Length: 215 amino acids
Theoretical weight: 24.39 KDa
Source organisms: Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: P00021 (Residues: 92-105; Coverage: 13%)
  • Canonical: P04230 (Residues: 30-215; Coverage: 78%)
Gene names: CYC, H2-Eb1
Sequence domains:
Structure domains:

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU
Spacegroup: C2
Unit cell:
a: 145.52Å b: 57.3Å c: 116.57Å
α: 90° β: 94.23° γ: 90°
R-values:
R R work R free
0.22 0.22 0.279
Expression system: Spodoptera frugiperda