3eb5

X-ray diffraction
2Å resolution

Structure of the cIAP2 RING domain

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

Structure analysis Details

Assembly composition:
homo dimer (preferred)
PDBe Complex ID:
PDB-CPX-171716 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Baculoviral IAP repeat-containing protein 3 Chain: A
Molecule details ›
Chain: A
Length: 74 amino acids
Theoretical weight: 8.24 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: Q13489 (Residues: 536-604; Coverage: 11%)
Gene names: API2, BIRC3, MIHC, RNF49
Sequence domains: Zinc finger, C3HC4 type (RING finger)
Structure domains: Zinc/RING finger domain, C3HC4 (zinc finger)

Ligands and Environments

2 bound ligands:
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: SSRL BEAMLINE BL9-2, RIGAKU MICROMAX-007
Spacegroup: C222
Unit cell:
a: 34.869Å b: 66.474Å c: 77.465Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.219 0.213 0.275
Expression system: Escherichia coli