3d9u

X-ray diffraction
2.3Å resolution

The BIR3 domain of cIAP1 in complex with the N terminal peptide from SMAC/DIABLO (AVPIAQ).

Released:

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:
  • not assigned
Biological process:
  • not assigned
Cellular component:
  • not assigned
Sequence domain:

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-171718 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Baculoviral IAP repeat-containing protein 2 Chain: A
Molecule details ›
Chain: A
Length: 97 amino acids
Theoretical weight: 11.17 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: Q13490 (Residues: 260-352; Coverage: 15%)
Gene names: API1, BIRC2, MIHB, RNF48
Sequence domains: Inhibitor of Apoptosis domain
Structure domains: Inhibitor Of Apoptosis Protein (2mihbC-IAP-1); Chain A
Diablo IAP-binding mitochondrial protein, cleaved form Chain: B
Molecule details ›
Chain: B
Length: 6 amino acids
Theoretical weight: 598 Da
Source organism: Homo sapiens
Expression system: Not provided
UniProt:
  • Canonical: Q9NR28 (Residues: 56-61; Coverage: 3%)
Gene names: DIABLO, SMAC

Ligands and Environments

1 bound ligand:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: RIGAKU FR-E DW
Spacegroup: P6122
Unit cell:
a: 62.983Å b: 62.983Å c: 115.343Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.228 0.201 0.256
Expression systems:
  • Escherichia coli
  • Not provided