1EK9 Membrane Protein date Mar 07, 2000
title 2.1a X-Ray Structure Of Tolc: An Integral Outer Membrane Protein And Efflux Pump Component From Escherichia Coli
authors V.Koronakis, A.J.Sharff, E.Koronakis, B.Luisi, C.Hughes
compound source
Molecule: Outer Membrane Protein Tolc
Chain: A, B, C
Engineered: Yes
 Organism_scientific: Escherichia Coli
Organism_taxid: 562
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_plasmid: Pacyc184
symmetry Space Group: H 3
R_factor 0.208 R_Free 0.257
crystal
cell
length a length b length c angle alpha angle beta angle gamma
265.049 265.049 95.959 90.00 90.00 120.00
method X-Ray Diffractionresolution 2.10 Å
ligand MSE enzyme
note 1EK9 (Molecule of the Month:pdb95)
related structures by homologous chain: 1TQQ
Gene
Ontology
ChainFunctionProcessComponent
A, C, B


Primary referenceCrystal structure of the bacterial membrane protein TolC central to multidrug efflux and protein export., Koronakis V, Sharff A, Koronakis E, Luisi B, Hughes C, Nature 2000 Jun 22;405(6789):914-9. PMID:10879525
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (236 Kb) [Save to disk]
  • Biological Unit Coordinates (1ek9.pdb1.gz) 230 Kb
  • LPC: Ligand-Protein Contacts for 1EK9
  • CSU: Contacts of Structural Units for 1EK9
  • Likely Quarternary Molecular Structure file(s) for 1EK9
  • Structure Factors (1162 Kb)
  • Retrieve 1EK9 in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1EK9 from S2C, [Save to disk]
  • Re-refined 1ek9 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
    • View 1EK9 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 1EK9
  • 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 1EK9, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1ek9a_, region A [Jmol] [rasmolscript] [script source]
        - Domain d1ek9b_, region B [Jmol] [rasmolscript] [script source]
        - Domain d1ek9c_, region C [Jmol] [rasmolscript] [script source]
    • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [1ek9_B] [1ek9_A] [1ek9_C] [1ek9]
  • SWISS-PROT database: [P02930]
  • Belongs to the outer membrane factor (omf) family according to TCDB.
  • Domain organization of [TOLC_ECOLI] by SWISSPFAM
    • Other resources with information on 1EK9
  • Community annotation for 1EK9 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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