1i3r

X-ray diffraction
2.4Å resolution

CRYSTAL STRUCTURE OF A MUTANT IEK CLASS II MHC MOLECULE

Released:
Source organism: Mus musculus
Primary publication:
Mutations changing the kinetics of class II MHC peptide exchange.
Immunity 14 513-22 (2001)
PMID: 11371354

Function and Biology Details

Structure analysis Details

Assemblies composition:
hetero octamer
hetero dimer (preferred)
hetero tetramer
PDBe Complex ID:
PDB-CPX-135397 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (3 distinct):
H-2 class II histocompatibility antigen, E-K alpha chain Chains: A, C, E, G
Molecule details ›
Chains: A, C, E, G
Length: 192 amino acids
Theoretical weight: 22.36 KDa
Source organism: Mus musculus
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: P04224 (Residues: 26-217; Coverage: 84%)
Sequence domains:
Structure domains:
H-2 class II histocompatibility antigen, E-B beta chain; Hemoglobin subunit beta-2 Chains: B, D, F, H
Molecule details ›
Chains: B, D, F, H
Length: 228 amino acids
Theoretical weight: 25.89 KDa
Source organism: Mus musculus
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: P02089 (Residues: 65-77; Coverage: 9%)
  • Canonical: P04230 (Residues: 30-225; Coverage: 82%)
Gene names: H2-Eb1, Hbb-b2
Sequence domains:
Structure domains:

Ligands and Environments

Carbohydrate polymer : NEW Components: NAG
1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ALS BEAMLINE 5.0.2
Spacegroup: P21
Unit cell:
a: 117.059Å b: 58.02Å c: 143.222Å
α: 90° β: 93.24° γ: 90°
R-values:
R R work R free
0.229 0.229 0.27
Expression system: Spodoptera frugiperda