5ic4

X-ray diffraction
2.65Å resolution

Crystal structure of caspase-3 DEVE peptide complex

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 hexamer (preferred)
PDBe Complex ID:
PDB-CPX-154744 (preferred)
Entry contents:
3 distinct polypeptide molecules
Macromolecules (3 distinct):
Caspase-3 subunit p17 Chains: A, C, E, G
Molecule details ›
Chains: A, C, E, G
Length: 175 amino acids
Theoretical weight: 19.76 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P42574 (Residues: 1-175; Coverage: 63%)
Gene names: CASP3, CPP32
Sequence domains: Caspase domain
Structure domains: Rossmann fold
Caspase-3 subunit p12 Chains: B, D, F, H
Molecule details ›
Chains: B, D, F, H
Length: 107 amino acids
Theoretical weight: 12.6 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: P42574 (Residues: 176-276; Coverage: 37%)
Gene names: CASP3, CPP32
Sequence domains: Caspase domain
Structure domains: Caspase-like
DEVE peptide Chains: I, J, K, L
Molecule details ›
Chains: I, J, K, L
Length: 4 amino acids
Theoretical weight: 488 Da
Source organism: synthetic construct
Expression system: Not provided

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: ALS BEAMLINE 8.3.1
Spacegroup: F222
Unit cell:
a: 133.82Å b: 177.796Å c: 193.43Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.209 0.207 0.239
Expression systems:
  • Escherichia coli
  • Not provided