PDBe 6eqx

X-ray diffraction
1.99Å resolution

X-ray structure of the proprotein convertase furin bound with the competitive inhibitor Arg-Arg-Arg-Val-Arg-Amba


Function and Biology Details

Reaction catalysed:
Release of mature proteins from their proproteins by cleavage of -Arg-Xaa-Yaa-Arg-|- bonds, where Xaa can be any amino acid and Yaa is Arg or Lys. Releases albumin, complement component C3 and von Willebrand factor from their respective precursors.
Biochemical function:
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Furin Chain: A
Molecule details ›
Chain: A
Length: 482 amino acids
Theoretical weight: 52.39 KDa
Source organism: Homo sapiens
Expression system: Homo sapiens
  • Canonical: P09958 (Residues: 108-567; Coverage: 60%)
Gene names: FUR, FURIN, PACE, PCSK3
Sequence domains: Subtilase family
Arg-Arg-Arg-Val-Arg-00S Chain: D
Molecule details ›
Chain: D
Length: 6 amino acids
Theoretical weight: 877 Da
Source organism: synthetic construct
Expression system: synthetic construct

Ligands and Environments

3 bound ligands:

No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: BESSY BEAMLINE 14.1
Spacegroup: P6522
Unit cell:
a: 131.805Å b: 131.805Å c: 155.347Å
α: 90° β: 90° γ: 120°
R R work R free
0.163 0.162 0.184
Expression systems:
  • Homo sapiens
  • synthetic construct