2atp

X-ray diffraction
2.4Å resolution

Crystal structure of a CD8ab heterodimer

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero trimer (preferred)
PDBe Complex ID:
PDB-CPX-134570 (preferred)
Entry contents:
3 distinct polypeptide molecules
Macromolecules (3 distinct):
T-cell surface glycoprotein CD8 alpha chain Chains: A, C
Molecule details ›
Chains: A, C
Length: 122 amino acids
Theoretical weight: 13.84 KDa
Source organism: Mus musculus
Expression system: Cricetulus griseus
UniProt:
  • Canonical: P01731 (Residues: 28-149; Coverage: 56%)
Gene names: Cd8a, Lyt-2, Lyt2
Sequence domains: Immunoglobulin V-set domain
Structure domains: Immunoglobulins
artifact linker Chains: E, F
Molecule details ›
Chains: E, F
Length: 29 amino acids
Theoretical weight: 3.03 KDa
T-cell surface glycoprotein CD8 beta chain Chains: B, D
Molecule details ›
Chains: B, D
Length: 115 amino acids
Theoretical weight: 13.04 KDa
Source organism: Mus musculus
Expression system: Cricetulus griseus
UniProt:
  • Canonical: P10300 (Residues: 22-136; Coverage: 60%)
Gene names: Cd8b, Cd8b1, Ly-3, Lyt-3, Lyt3
Sequence domains: Immunoglobulin V-set domain
Structure domains: Immunoglobulins

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 19-ID
Spacegroup: P21
Unit cell:
a: 37.668Å b: 92.655Å c: 79.33Å
α: 90° β: 95.67° γ: 90°
R-values:
R R work R free
0.246 0.242 0.294
Expression system: Cricetulus griseus