X-ray diffraction
1.65Å resolution

HTRA2 wild-type structure


Function and Biology Details

Reaction catalysed:
Cleavage of non-polar aliphatic amino-acids at the P1 position, with a preference for Val, Ile and Met. At the P2 and P3 positions, Arg is selected most strongly with a secondary preference for other hydrophilic residues
Biochemical function:
  • not assigned
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
homo trimer (preferred)
Entry contents:
1 distinct polypeptide molecule
Serine protease HTRA2, mitochondrial Chain: A
Molecule details ›
Chain: A
Length: 332 amino acids
Theoretical weight: 35.98 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
  • Canonical: O43464 (Residues: 134-458; Coverage: 71%)
Gene names: HTRA2, OMI, PRSS25
Sequence domains:
Structure domains:

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ESRF BEAMLINE ID14-3
Spacegroup: R3
Unit cell:
a: 82.828Å b: 82.828Å c: 127.415Å
α: 90° β: 90° γ: 120°
R R work R free
0.149 0.147 0.176
Expression system: Escherichia coli