4ont

X-ray diffraction
2.15Å resolution

Ternary host recognition complex of complement factor H, C3d, and sialic acid

Released:

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-133841 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (3 distinct):
Complement factor H Chains: D, E, F
Molecule details ›
Chains: D, E, F
Length: 129 amino acids
Theoretical weight: 14.77 KDa
Source organism: Homo sapiens
Expression system: Komagataella pastoris
UniProt:
  • Canonical: P08603 (Residues: 1107-1231; Coverage: 10%)
Gene names: CFH, HF, HF1, HF2
Sequence domains: Sushi repeat (SCR repeat)
Structure domains: Complement Module, domain 1
Complement C3d fragment Chains: A, B, C
Molecule details ›
Chains: A, B, C
Length: 317 amino acids
Theoretical weight: 35.44 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P01024 (Residues: 996-1303; Coverage: 19%)
Gene names: C3, CPAMD1
Sequence domains: A-macroglobulin TED domain
Structure domains: Glycosyltransferase

Ligands and Environments

Carbohydrate polymer : NEW Components: BGC, GAL, SIA
1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SLS BEAMLINE X06DA
Spacegroup: P1
Unit cell:
a: 75.459Å b: 82.536Å c: 85.752Å
α: 112.5° β: 110.71° γ: 99.98°
R-values:
R R work R free
0.175 0.172 0.223
Expression systems:
  • Komagataella pastoris
  • Escherichia coli