6rqj

Electron Microscopy
3.5Å resolution

Structure of human complement C5 complexed with tick inhibitors OmCI, RaCI1 and CirpT1

Released:
Related structures: EMD-4983

Function and Biology Details

Structure analysis Details

Assembly composition:
hetero pentamer (preferred)
PDBe Complex ID:
PDB-CPX-103002 (preferred)
Entry contents:
5 distinct polypeptide molecules
Macromolecules (6 distinct):
Complement C5 alpha chain Chain: A
Molecule details ›
Chain: A
Length: 999 amino acids
Theoretical weight: 112.64 KDa
Source organism: Homo sapiens
UniProt:
  • Canonical: P01031 (Residues: 678-1676; Coverage: 60%)
Gene names: C5, CPAMD4
Sequence domains:
Complement inhibitor Chain: C
Molecule details ›
Chain: C
Length: 165 amino acids
Theoretical weight: 18.65 KDa
Source organism: Rhipicephalus pulchellus
Expression system: Kluyveromyces lactis
UniProt:
  • Canonical: Q5YD59 (Residues: 1-1, 19-168; Coverage: 89%)
Complement inhibitor RaCI1 Chain: D
Molecule details ›
Chain: D
Length: 81 amino acids
Theoretical weight: 8.58 KDa
Source organism: Rhipicephalus pulchellus
Expression system: Escherichia coli
UniProt:
  • Canonical: A0A141SFN4 (Residues: 21-98; Coverage: 100%)
Complement C5 beta chain Chain: B
Molecule details ›
Chain: B
Length: 655 amino acids
Theoretical weight: 73.36 KDa
Source organism: Homo sapiens
UniProt:
  • Canonical: P01031 (Residues: 19-673; Coverage: 40%)
Gene names: C5, CPAMD4
Sequence domains:
Complement inhibitor CirpT1 Chain: E
Molecule details ›
Chain: E
Length: 112 amino acids
Theoretical weight: 12.15 KDa
Source organism: Rhipicephalus pulchellus
Expression system: Escherichia coli
UniProt:
  • Canonical: L7MB58 (Residues: 24-111; Coverage: 96%)
Sequence domains: Single domain von Willebrand factor type C

Ligands and Environments

Carbohydrate polymer : NEW Components: NAG
No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
Resolution: 3.5Å
Relevant EMDB volumes: EMD-4983
Expression systems:
  • Kluyveromyces lactis
  • Escherichia coli