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› 7wr6

X-ray diffraction
1.96Å resolution

Crystal structure of ADP-riboxanated caspase-4 in complex with Af1521

Released:
DOI: 10.2210/pdb7wr6/pdb
Model geometry
Fit model/data
PDB entry 7wr6 coloured by chain, front view.
PDB entry 7wr6 coloured by chain, side view.
PDB entry 7wr6 coloured by chain, top view.
Source organisms:
Primary publication:
Structural mechanisms of calmodulin activation of Shigella effector OspC3 to ADP-riboxanate caspase-4/11 and block pyroptosis.
Hou Y, Zeng H, Li Z, Feng N, Meng F, Xu Y, Li L, Shao F, Ding J
Nat Struct Mol Biol (2023)
PMID: 36624349

Function and Biology Details

Reaction catalysed: 
Strict requirement for Asp at the P1 position. It has a preferredcleavage sequence of Tyr-Val-Ala-Asp-|- but also cleaves at Asp-Glu-Val-Asp-|-.
Biochemical function:
Biological process:
Cellular component:
  • not assigned
Sequence domains:

Structure analysis Details

Assembly composition:
hetero dimer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-128058 (preferred)
Entry contents:
2 distinct polypeptide molecules
Macromolecules (2 distinct):
Caspase-4 subunit p20 Chain: A
Molecule details ›
Chain: A
Length: 280 amino acids
Theoretical weight: 32.1 KDa
Source organism: Homo sapiens
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: P49662 (Residues: 102-377; Coverage: 73%)
Gene names: CASP4, ICH2
Sequence domains: Caspase domain
ADP-ribose glycohydrolase AF_1521 Chain: B
Molecule details ›
Chain: B
Length: 200 amino acids
Theoretical weight: 21.71 KDa
Source organism: Archaeoglobus fulgidus
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: O28751 (Residues: 1-192; Coverage: 100%)
Gene name: AF_1521
Sequence domains: Macro domain

Ligands and Environments

1 bound ligand:
Ligand 5ZY 1 x 5ZY
No modified residues

Experiments and Validation Details

wwPDB Validation report is not available for this entry.
X-ray source: SSRF BEAMLINE BL19U1
Spacegroup: P212121
Unit cell:
a: 42.143Å b: 59.92Å c: 187.82Å
α: 90° β: 90° γ: 90°
R-values:
R R work R free
0.198 0.196 0.228
Expression system: Escherichia coli BL21(DE3)

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Citations

1 review citation

Gasdermins assemble; recent developments in bacteriology and pharmacology.
Greenwood et al. (2023)
2 other articles