4ekx

X-ray diffraction
1.75Å resolution

Crystal Structure of YLDV 14L IL-18 Binding Protein in Complex with Human IL-18

Released:

Function and Biology Details

Biochemical function:
Biological process:
Cellular component:

Structure analysis Details

Assemblies composition:
hetero tetramer
hetero dimer (preferred)
PDBe Complex ID:
PDB-CPX-171915 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
14L protein Chains: A, C
Molecule details ›
Chains: A, C
Length: 116 amino acids
Theoretical weight: 13.73 KDa
Source organism: Yaba-like disease virus
Expression system: Escherichia coli
UniProt:
  • Canonical: Q9DHU8 (Residues: 22-136; Coverage: 85%)
Gene name: 14L
Structure domains: Immunoglobulins
Interleukin-18 Chains: B, D
Molecule details ›
Chains: B, D
Length: 157 amino acids
Theoretical weight: 17.96 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q14116 (Residues: 37-193; Coverage: 81%)
Gene names: IGIF, IL18, IL1F4
Sequence domains: Interleukin-1 / 18
Structure domains: Trefoil (Acidic Fibroblast Growth Factor, subunit A)

Ligands and Environments

No bound ligands
No modified residues

Experiments and Validation Details

Entry percentile scores
X-ray source: NSLS BEAMLINE X29A
Spacegroup: P21
Unit cell:
a: 75.363Å b: 41.156Å c: 100.843Å
α: 90° β: 97.9° γ: 90°
R-values:
R R work R free
0.192 0.19 0.231
Expression systems:
  • Escherichia coli
  • Escherichia coli BL21(DE3)