1XKO Attractant date Sep 29, 2004
title Structure Of Thermotoga Maritima Chex
authors S.Y.Park, X.Chao, G.Gonzalez-Bonet, B.D.Beel, A.M.Bilwes, B.R.Cra
compound source
Molecule: Chemotaxis Protein Chex
Chain: A, B
Engineered: Yes
 Organism_scientific: Thermotoga Maritima
Organism_taxid: 2336
Expression_system: Escherichia Coli Bl21(De3)
Expression_system_taxid: 469008
Expression_system_strain: Bl21(De3)
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Pet28a+
symmetry Space Group: P 21 21 21
R_factor 0.240 R_Free 0.295
crystal
cell
length a length b length c angle alpha angle beta angle gamma
52.210 67.900 78.780 90.00 90.00 90.00
method X-Ray Diffractionresolution 2.48 Å
related structures by homologous chain: 1SQU
Gene
Ontology
ChainFunctionProcessComponent
A, B


Primary referenceStructure and function of an unusual family of protein phosphatases: the bacterial chemotaxis proteins CheC and CheX., Park SY, Chao X, Gonzalez-Bonet G, Beel BD, Bilwes AM, Crane BR, Mol Cell 2004 Nov 19;16(4):563-74. PMID:15546616
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (51 Kb) [Save to disk]
  • Biological Unit Coordinates (1xko.pdb1.gz) 47 Kb
  • CSU: Contacts of Structural Units for 1XKO
  • Likely Quarternary Molecular Structure file(s) for 1XKO
  • Structure Factors (135 Kb)
  • Retrieve 1XKO in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1XKO from S2C, [Save to disk]
  • Re-refined 1xko structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
    • View 1XKO 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 1XKO
  • 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 1XKO, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1xkoa_, region A [Jmol] [rasmolscript] [script source]
        - Domain d1xkob_, region B [Jmol] [rasmolscript] [script source]
    • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [1xko_B] [1xko_A] [1xko]
  • SWISS-PROT database: [Q9X1V3]
  • Domain organization of [CHEX_THEMA] by SWISSPFAM
    • Other resources with information on 1XKO
  • Community annotation for 1XKO 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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