1KXI Cytotoxin date Aug 29, 1996
title Structure Of Cytotoxin Homolog Precursor
authors Y.J.Sun, W.G.Wu, C.M.Chiang, A.Y.Hsin, C.D.Hsiao
compound source
Molecule: Cardiotoxin V
Chain: A, B
Synonym: Ctx A5
Engineered: Yes
Organism_scientific: Naja Atra
Organism_common: Chinese Cobra
Organism_taxid: 8656
Organ: Venom Gland
Expression_system: Escherichia Coli
Expression_system_taxid: 562
symmetry Space Group: P 41 21 2
R_factor 0.207 R_Free 0.305
crystal
cell
length a length b length c angle alpha angle beta angle gamma
43.300 43.300 147.800 90.00 90.00 90.00
method X-Ray Diffractionresolution 2.19 Å
related structures by homologous chain: 1H0J, 1XT3
Gene
Ontology
ChainFunctionProcessComponent
A, B
  • toxin activity


  • Primary referenceCrystal structure of cardiotoxin V from Taiwan cobra venom: pH-dependent conformational change and a novel membrane-binding motif identified in the three-finger loops of P-type cardiotoxin., Sun YJ, Wu WG, Chiang CM, Hsin AY, Hsiao CD, Biochemistry 1997 Mar 4;36(9):2403-13. PMID:9054545
    Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (25 Kb) [Save to disk]
  • Biological Unit Coordinates (1kxi.pdb1.gz) 22 Kb
  • CSU: Contacts of Structural Units for 1KXI
  • Likely Quarternary Molecular Structure file(s) for 1KXI
  • Structure Factors (50 Kb)
  • Retrieve 1KXI in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1KXI from S2C, [Save to disk]
  • Re-refined 1kxi structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1KXI 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 1KXI
  • 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
  • 3D motif for 1KXI, from MSDmotif at EBI
  • Genome occurence of 1KXI's fold from GeneCensus
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1kxia_, region A [Jmol] [rasmolscript] [script source]
        - Domain d1kxib_, region B [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: [1kxi_B] [1kxi] [1kxi_A]
  • SWISS-PROT database: [P62375]
  • Domain organization of [CTXA5_NAJAT] by SWISSPFAM
  • Other resources with information on 1KXI
  • Community annotation for 1KXI at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
  • Domain movements in 1KXI from the Database of Macromolecular Movements.
  • Images from IMB Jena Image Library of Biological Macromolecules.

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