PDBe 4jij

X-ray diffraction
1.7Å resolution

Crystal structure of an inactive mutant of MMP-9 catalytic domain in complex with a fluorogenic synthetic peptidic substrate


Function and Biology Details

Reaction catalysed:
Cleavage of gelatin types I and V and collagen types IV and V.
Biochemical function:
Biological process:
Cellular component:

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
fluorogenic peptidic substrate (8MC)PLG(PHI)(DNW)AR(NH2) Chains: P, Q
Molecule details ›
Chains: P, Q
Length: 9 amino acids
Theoretical weight: 1.25 KDa
Source organism: Homo sapiens
Expression system: Not provided
67 kDa matrix metalloproteinase-9 Chains: A, B
Molecule details ›
Chains: A, B
Length: 164 amino acids
Theoretical weight: 18.28 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
  • Canonical: P14780 (Residues: 107-444; Coverage: 24%)
Gene names: CLG4B, MMP9
Sequence domains: Matrixin
Structure domains: Collagenase (Catalytic Domain)

Ligands and Environments

Experiments and Validation Details

Entry percentile scores
Spacegroup: P212121
Unit cell:
a: 34.2Å b: 57.4Å c: 172.03Å
α: 90° β: 90° γ: 90°
R R work R free
0.16 0.16 0.195
Expression systems:
  • Not provided
  • Escherichia coli