1rhu

X-ray diffraction
2.51Å resolution

CRYSTAL STRUCTURE OF THE COMPLEX OF CASPASE-3 WITH A 5,6,7 TRICYCLIC PEPTIDOMIMETIC INHIBITOR

Released:

Function and Biology Details

Reaction catalysed:
Strict requirement for an Asp residue at positions P1 and P4. It has a preferred cleavage sequence of Asp-Xaa-Xaa-Asp-|- with a hydrophobic amino-acid residue at P2 and a hydrophilic amino-acid residue at P3, although Val or Ala are also accepted at this position
Biochemical function:
Biological process:
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero tetramer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-154726 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Caspase-3 subunit p17 Chain: A
Molecule details ›
Chain: A
Length: 147 amino acids
Theoretical weight: 16.64 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P42574 (Residues: 29-175; Coverage: 53%)
Gene names: CASP3, CPP32
Sequence domains: Caspase domain
Structure domains: Rossmann fold
Caspase-3 subunit p12 Chain: B
Molecule details ›
Chain: B
Length: 102 amino acids
Theoretical weight: 11.91 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P42574 (Residues: 176-277; Coverage: 37%)
Gene names: CASP3, CPP32
Sequence domains: Caspase domain
Structure domains: Caspase-like

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU RU200
Spacegroup: P21212
Unit cell:
a: 69.5Å b: 98Å c: 44Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.166 0.166 0.212
Expression system: Escherichia coli BL21(DE3)