4b0f

X-ray diffraction
2.8Å resolution

Heptameric core complex structure of C4b-binding (C4BP) protein from human

Released:

Function and Biology Details

Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
homo heptamer (preferred)
PDBe Complex ID:
PDB-CPX-137316 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
C4b-binding protein alpha chain Chains: A, B, C, D, E, F, G
Molecule details ›
Chains: A, B, C, D, E, F, G
Length: 65 amino acids
Theoretical weight: 7.39 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P04003 (Residues: 540-597; Coverage: 11%)
Gene names: C4BP, C4BPA
Sequence domains: Oligomerization domain of C4b-binding protein alpha
Structure domains: Single alpha-helices involved in coiled-coils or other helix-helix interfaces

Ligands and Environments

1 bound ligand:
1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: BESSY BEAMLINE 14.1
Spacegroup: P43212
Unit cell:
a: 73.85Å b: 73.85Å c: 204.29Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.214 0.212 0.248
Expression system: Escherichia coli