2qos

X-ray diffraction
1.81Å resolution

Crystal structure of complement protein C8 in complex with a peptide containing the C8 binding site on C8

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-139559 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Complement component C8 gamma chain Chain: C
Molecule details ›
Chain: C
Length: 173 amino acids
Theoretical weight: 19.17 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P07360 (Residues: 30-202; Coverage: 95%)
Gene name: C8G
Sequence domains: Lipocalin / cytosolic fatty-acid binding protein family
Structure domains: Lipocalin
Complement component C8 alpha chain Chain: A
Molecule details ›
Chain: A
Length: 11 amino acids
Theoretical weight: 1.39 KDa
Source organism: Homo sapiens
Expression system: Not provided
UniProt:
  • Canonical: P07357 (Residues: 188-198; Coverage: 2%)
Gene name: C8A

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: APS BEAMLINE 22-ID
Spacegroup: P21212
Unit cell:
a: 59.942Å b: 85.251Å c: 41.899Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.204 0.204 0.244
Expression systems:
  • Escherichia coli
  • Not provided