1RWV

Crystal structure of human caspase-1 in complex with 5-[5-(1-carboxymethyl-2-oxo-propylcarbamoyl)-5-phenyl-pentylsulfamoyl]-2-hydroxy-benzoic acid

• PDB DOI: https://doi.org/10.2210/pdb1RWV/pdb

• Classification: HYDROLASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2003-12-17 Released: 2004-12-28 
• Deposition Author(s): Romanowski, M.J., Burdett, M.T., Fahr, B.T., O'Brien, T.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 0.238 
• R-Value Work: 0.198 
• R-Value Observed: 0.200 

Starting Model: experimental

Literature

Novel Caspase-1 Inhibitors Discovered Using Tethering(SM) with Extenders

O'Brien, T., Fahr, B.T., Sopko, M.M., Lam, J.W., Waal, N.D., Raimundo, B.C., Purkey, H.E., Pham, P., Romanowski, M.J.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Hetero 4-mer - A2B2 

Biological assembly 1 assigned by authors and generated by PISA,PQS (software)

Macromolecule Content

• Total Structure Weight: 30.65 kDa 
• Atom Count: 2,338 
• Modelled Residue Count: 261 
• Deposited Residue Count: 266 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Interleukin-1 beta convertase	A	178	Homo sapiens	Mutation(s): 0  Gene Names: CASP1, IL1BC, IL1BCE EC: 3.4.22.36
UniProt & NIH Common Fund Data Resources
Find proteins for P29466 (Homo sapiens) Explore P29466  Go to UniProtKB:  P29466
PHAROS:  P29466 GTEx:  ENSG00000137752

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Interleukin-1 beta convertase	B	88	Homo sapiens	Mutation(s): 0  Gene Names: CASP1, IL1BC, IL1BCE EC: 3.4.22.36
UniProt & NIH Common Fund Data Resources
Find proteins for P29466 (Homo sapiens) Explore P29466  Go to UniProtKB:  P29466
PHAROS:  P29466 GTEx:  ENSG00000137752

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
5PH	C [auth A]	5-[5-(1-CARBOXYMETHYL-2-OXO-PROPYLCARBAMOYL)-5-PHENYL-PENTYLSULFAMOYL]-2-HYDROXY-BENZOIC ACID C24 H28 N2 O9 S PBZHVFMSQSBSIF-ICSRJNTNSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 0.238 
• R-Value Work: 0.198 
• R-Value Observed: 0.200 
• Space Group: P 4₃ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 63.048	α = 90
b = 63.048	β = 90
c = 161.056	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
d*TREK	data scaling
AMoRE	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2004-12-28 
Deposition Author(s): Romanowski, M.J., Burdett, M.T., Fahr, B.T., O'Brien, T.

Revision History  

• Version 1.0: 2004-12-28
  Type: Initial release
  
• Version 1.1: 2008-04-29
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Derived calculations, Version format compliance
• Version 1.3: 2023-08-23
  Changes: Data collection, Database references, Derived calculations, Refinement description
• Version 1.4: 2024-10-09
  Changes: Structure summary