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X-ray diffraction
3.14Å resolution

Asymmetric complex of Factor XII and kininogen with gC1qR/C1QBP/P32 is governed by allostery

Released:

Function and Biology Details

Reaction catalysed:
Selective cleavage of Arg-|-Ile bonds in factor VII to form factor VIIa and factor XI to form factor XIa.
Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:

Structure analysis Details

Assembly composition:
hetero tetramer (preferred)
PDBe Complex ID:
PDB-CPX-133247 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Complement component 1 Q subcomponent-binding protein, mitochondrial Chains: A, B, C
Molecule details ›
Chains: A, B, C
Length: 209 amino acids
Theoretical weight: 23.83 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: Q07021 (Residues: 74-282; Coverage: 74%)
Gene names: C1QBP, GC1QBP, HABP1, SF2P32
Sequence domains: Mitochondrial glycoprotein
Coagulation factor XIIa heavy chain Chain: D
Molecule details ›
Chain: D
Length: 71 amino acids
Theoretical weight: 8.46 KDa
Source organism: Homo sapiens
Expression system: Drosophila melanogaster
UniProt:
  • Canonical: P00748 (Residues: 20-90; Coverage: 12%)
Gene name: F12
Sequence domains: Fibronectin type II domain

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: DIAMOND BEAMLINE I04
Unit cell:
a: 106.29Å b: 71.56Å c: 115.857Å
α: 90° β: 110.64° γ: 90°
R-values:
R R work R free
0.198 0.195 0.25
Expression systems:
  • Escherichia coli
  • Drosophila melanogaster