› 3sip

X-ray diffraction
3.5Å resolution

Crystal structure of drICE and dIAP1-BIR1 complex

Released:
DOI: 10.2210/pdb3sip/pdb
PDB entry 3sip coloured by chain, front view.
PDB entry 3sip coloured by chain, side view.
PDB entry 3sip coloured by chain, top view.
Source organism: Drosophila melanogaster
Primary publication:
Structural mechanisms of DIAP1 auto-inhibition and DIAP1-mediated inhibition of drICE.
Li X, Wang J, Shi Y
Nat Commun 2 408 (2011)
PMID: 21811237

Function and Biology Details

Reaction catalysed: 
S-ubiquitinyl-[E2 ubiquitin-conjugating enzyme]-L-cysteine + [acceptor protein]-L-lysine = [E2 ubiquitin-conjugating enzyme]-L-cysteine + N(6)-ubiquitinyl-[acceptor protein]-L-lysine
Biochemical function:
Biological process:
Cellular component:
  • not assigned
Sequence domains:

Structure analysis Details

Assemblies composition:
hetero dodecamer
hetero hexamer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-126405 (preferred)
Entry contents:
3 distinct polypeptide molecules
Macromolecules (3 distinct):
Caspase subunit p21 Chains: A, C
Molecule details ›
Chains: A, C
Length: 157 amino acids
Theoretical weight: 17.91 KDa
Source organism: Drosophila melanogaster
Expression system: Escherichia coli
UniProt:
  • Canonical: O01382 (Residues: 78-230; Coverage: 45%)
Gene names: CG7788, Drice, ICE
Sequence domains: Caspase domain
Structure domains: Rossmann fold
Death-associated inhibitor of apoptosis 1 Chains: E, F
Molecule details ›
Chains: E, F
Length: 115 amino acids
Theoretical weight: 13.42 KDa
Source organism: Drosophila melanogaster
Expression system: Escherichia coli
UniProt:
  • Canonical: Q24306 (Residues: 31-145; Coverage: 26%)
Gene names: CG12284, Diap1, Iap1, th
Sequence domains: Inhibitor of Apoptosis domain
Structure domains: Inhibitor Of Apoptosis Protein (2mihbC-IAP-1); Chain A
Caspase subunit p12 Chains: B, D
Molecule details ›
Chains: B, D
Length: 109 amino acids
Theoretical weight: 12.31 KDa
Source organism: Drosophila melanogaster
Expression system: Escherichia coli
UniProt:
  • Canonical: O01382 (Residues: 231-339; Coverage: 32%)
Gene names: CG7788, Drice, ICE
Sequence domains: Caspase domain
Structure domains: Caspase-like

Ligands and Environments

1 bound ligand:
Ligand ZN 2 x ZN
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SSRF BEAMLINE BL17U
Spacegroup: I212121
Unit cell:
a: 91.35Å b: 148.115Å c: 156.738Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.212 0.21 0.256
Expression system: Escherichia coli

Quick links

Citations

4 review citations

Developmentally programmed cell death in Drosophila.
Denton et al. (2013)
3 more

4 mentions without citation

Mechanisms Applied by Protein Inhibitors to Inhibit Cysteine Proteases.
TuĊĦar et al. (2021)
3 more