2pzd

X-ray diffraction
2.75Å resolution

Crystal Structure of the HtrA2/Omi PDZ Domain Bound to a Phage-Derived Ligand (WTMFWV)

Released:

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 dimer (preferred)
PDBe Complex ID:
PDB-CPX-128933 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Serine protease HTRA2, mitochondrial Chains: A, B
Molecule details ›
Chains: A, B
Length: 113 amino acids
Theoretical weight: 12.59 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: O43464 (Residues: 359-458; Coverage: 22%)
Gene names: HTRA2, OMI, PRSS25
Sequence domains: PDZ domain
Structure domains: Pdz3 Domain

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SSRL BEAMLINE BL9-1
Spacegroup: P41212
Unit cell:
a: 90.105Å b: 90.105Å c: 83.516Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.21 0.208 0.254
Expression system: Escherichia coli