3c5z

X-ray diffraction
2.55Å resolution

Crystal structure of mouse MHC class II I-Ab/3K peptide complexed with mouse TCR B3K506

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero octamer (preferred)
PDBe Complex ID:
PDB-CPX-210600 (preferred)
Entry contents:
4 distinct polypeptide molecules
Macromolecules (4 distinct):
TCR B3K506 Alpha Chain Chains: A, E
Molecule details ›
Chains: A, E
Length: 202 amino acids
Theoretical weight: 22.47 KDa
Source organism: Mus musculus
Expression system: Escherichia coli BL21
Structure domains: Immunoglobulins
TCR B3K506 Beta Chain Chains: B, F
Molecule details ›
Chains: B, F
Length: 240 amino acids
Theoretical weight: 26.96 KDa
Source organism: Mus musculus
Expression system: Escherichia coli BL21
Structure domains: Immunoglobulins
H-2 class II histocompatibility antigen, A-B alpha chain Chains: C, G
Molecule details ›
Chains: C, G
Length: 182 amino acids
Theoretical weight: 20.6 KDa
Source organism: Mus musculus
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: P14434 (Residues: 27-208; Coverage: 78%)
Gene name: H2-Aa
Sequence domains:
Structure domains:
H-2 class II histocompatibility antigen, A beta chain Chains: D, H
Molecule details ›
Chains: D, H
Length: 217 amino acids
Theoretical weight: 24.94 KDa
Source organism: Mus musculus
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: P14483 (Residues: 21-218; Coverage: 77%)
Gene names: H2-Ab1, H2-iabeta
Sequence domains:
Structure domains:

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 22-ID
Spacegroup: P21
Unit cell:
a: 65.3Å b: 117.8Å c: 136.2Å
α: 90° β: 99.56° γ: 90°
R-values:
R R work R free
0.246 0.246 0.281
Expression systems:
  • Escherichia coli BL21
  • Spodoptera frugiperda