4kc3

X-ray diffraction
3.27Å resolution

Cytokine/receptor binary complex

Released:
Source organism: Homo sapiens
Primary publication:
Structural insights into the interaction of IL-33 with its receptors.
Proc Natl Acad Sci U S A 110 14918-23 (2013)
PMID: 23980170

Function and Biology Details

Reaction catalysed:
(1a) NAD(+) = cyclic ADP-ribose + nicotinamide
Biochemical function:
Biological process:
  • not assigned
Cellular component:
  • not assigned

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-132017 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Interleukin-33 (109-270) Chain: A
Molecule details ›
Chain: A
Length: 159 amino acids
Theoretical weight: 18.16 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli
UniProt:
  • Canonical: O95760 (Residues: 112-270; Coverage: 59%)
Gene names: C9orf26, IL1F11, IL33, NFHEV
Sequence domains: Interleukin 33
Structure domains: Trefoil (Acidic Fibroblast Growth Factor, subunit A)
Interleukin-1 receptor-like 1 Chain: B
Molecule details ›
Chain: B
Length: 309 amino acids
Theoretical weight: 35.06 KDa
Source organism: Homo sapiens
Expression system: Spodoptera frugiperda
UniProt:
  • Canonical: Q01638 (Residues: 19-321; Coverage: 56%)
Gene names: DER4, IL1RL1, ST2, T1
Sequence domains: Immunoglobulin I-set domain
Structure domains: Immunoglobulins

Ligands and Environments

1 bound ligand:
1 modified residue:

Experiments and Validation Details

Entry percentile scores
X-ray source: SSRF BEAMLINE BL17U
Spacegroup: R32
Unit cell:
a: 329.924Å b: 329.924Å c: 43.731Å
α: 90° β: 90° γ: 120°
R-values:
R R work R free
0.241 0.238 0.283
Expression systems:
  • Escherichia coli
  • Spodoptera frugiperda