1SC4 Hydrolase date Feb 11, 2004
title Crystal Structure Of The Human Caspase-1 C285a Mutant After Malonate
authors M.J.Romanowski, J.M.Scheer, T.O'Brien, R.S.Mcdowell
compound source
Molecule: Interleukin-1 Beta Convertase
Chain: A
Fragment: Interleukin-1 Beta Convertase P20
Synonym: Il-1bc, Il-1 Beta Converting Enzyme, Ice, Interleu Converting Enzyme, P45, Caspase-1, Casp-1;
Ec: 3.4.22.36
Engineered: Yes
Mutation: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Gene: Casp1, Il1bc, Il1bce
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_strain: Bl21(De3) Codon+
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Prset

Molecule: Interleukin-1 Beta Convertase
Chain: B
Fragment: Interleukin-1 Beta Convertase P10
Synonym: Il-1bc, Il-1 Beta Converting Enzyme, Ice, Interleu Converting Enzyme, P45, Caspase-1, Casp-1;
Ec: 3.4.22.36
Engineered: Yes

Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Gene: Casp1, Il1bc, Il1bce
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_strain: Bl21(De3) Codon+
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Prset
symmetry Space Group: P 43 21 2
R_factor 0.221 R_Free 0.258
crystal
cell
length a length b length c angle alpha angle beta angle gamma
62.982 62.982 143.158 90.00 90.00 90.00
method X-Ray Diffractionresolution 2.10 Å
ligand
enzyme Hydrolase E.C.3.4.22.36 BRENDA
related structures by homologous chain: 1RWO, 1RWP
Primary referenceCrystal structures of a ligand-free and malonate-bound human caspase-1: implications for the mechanism of substrate binding., Romanowski MJ, Scheer JM, O'Brien T, McDowell RS, Structure. 2004 Aug;12(8):1361-71. PMID:15296730
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (48 Kb) [Save to disk]
  • Biological Unit Coordinates (1sc4.pdb1.gz) 85 Kb
  • CSU: Contacts of Structural Units for 1SC4
  • Likely Quarternary Molecular Structure file(s) for 1SC4
  • Structure Factors (129 Kb)
  • Retrieve 1SC4 in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1SC4 from S2C, [Save to disk]
  • Re-refined 1sc4 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1SC4 in 3D
  • Proteopedia, because life has more than 2D.
  • On Jmol, a nice Rasmol like molecule viewer. This is good for easiest viewing of basic structure.
  • On FirstGlance, an excellent tool for a guided tour on the structure components, by E. Martz.
  • Visual 3D analysis of 1SC4
  • Cartoon representation from PDB Cartoon
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Electron Density related parameters from EDS Electron Density Server, at Upsala
  • Dipole moment, from Dipole Server at Weizmann Institute
  • Crystal Contacts, from CryCo at Weizmann Institute
  • 3D motif for 1SC4, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1sc4.1, region A:,B [Jmol] [rasmolscript] [script source]
  • Fold representative 1sc4 from FSSP and Dali (Families of Structurally Similar Proteins)
  • Class (fold), Architecture (subfold), Topology, Homologous superfamily from CATH
  • Summaries and structural analyses of PDB data files from PDBSum
  • Identification of Protein Pockets & Cavities at CASTp
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [1sc4_A] [1sc4] [1sc4_B]
  • SWISS-PROT database: [P29466]
  • Domain organization of [CASP1_HUMAN] by SWISSPFAM
  • Domain found in 1SC4: [CASc ] by SMART
  • Alignments of the sequence of 1SC4 with the sequences similar proteins can be viewed for 1SC4's classification [CASP1_HUMAN] at ProtoMap. Click on "Neighbors List", then on the "See Alignments" button below the list.
  • A sequence distance tree ("phylogenetic tree") can be viewed for 1ACL's classification [CASP1_HUMAN] at ProtoMap. Click on the Cluster number.
  • Other resources with information on 1SC4
  • Community annotation for 1SC4 at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
  • Images from IMB Jena Image Library of Biological Macromolecules.

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