1KHO Toxin date Nov 30, 2001
title Crystal Structure Analysis Of Clostridium Perfringens Alpha- Isolated From Avian Strain Swcp
authors N.Justin, D.S.Moss, R.W.Titball, A.K.Basak
compound source
Molecule: Alpha-Toxin
Chain: A, B
Engineered: Yes
 Organism_scientific: Clostridium Perfringens
Organism_taxid: 1502
Gene: Cpa
Expression_system: Escherichia Coli Bl21
Expression_system_taxid: 511693
Expression_system_strain: Bl21
symmetry Space Group: P 41 2 2
R_factor 0.210 R_Free 0.236
crystal
cell
length a length b length c angle alpha angle beta angle gamma
117.230 117.230 220.590 90.00 90.00 90.00
method X-Ray Diffractionresolution 2.40 Å
ligand ZN enzyme
related structures by homologous chain: 1OLP, 1QM6, 1QMD
Gene
Ontology
ChainFunctionProcessComponent
A, B
  • toxin activity


    • Primary referenceThe first strain of Clostridium perfringens isolated from an avian source has an alpha-toxin with divergent structural and kinetic properties., Justin N, Walker N, Bullifent HL, Songer G, Bueschel DM, Jost H, Naylor C, Miller J, Moss DS, Titball RW, Basak AK, Biochemistry 2002 May 21;41(20):6253-62. PMID:12009886
    Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (126 Kb) [Save to disk]
  • Biological Unit Coordinates (1kho.pdb1.gz) 62 Kb
  • Biological Unit Coordinates (1kho.pdb2.gz) 61 Kb
  • LPC: Ligand-Protein Contacts for 1KHO
  • CSU: Contacts of Structural Units for 1KHO
  • Likely Quarternary Molecular Structure file(s) for 1KHO
  • Retrieve 1KHO in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1KHO from S2C, [Save to disk]
    • View 1KHO 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 1KHO
  • Ramachandran plot from PDBSum
    • Structure-derived information
  • Dipole moment, from Dipole Server at Weizmann Institute
  • 3D motif for 1KHO, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1khoa1, region A:1-249 [Jmol] [rasmolscript] [script source]
        - Domain d1khoa2, region A:250-370 [Jmol] [rasmolscript] [script source]
        - Domain d1khob1, region B:1-249 [Jmol] [rasmolscript] [script source]
        - Domain d1khob2, region B:250-370 [Jmol] [rasmolscript] [script source]
  • 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: [1kho_A] [1kho_B] [1kho]
  • SWISS-PROT database: [Q9RF12]
  • Domain organization of [PHLC2_CLOPE] by SWISSPFAM
  • Domain found in 1KHO: [Zn_dep_PLPC ] by SMART
    • Other resources with information on 1KHO
  • Community annotation for 1KHO 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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