2QTK Membrane Protein date Aug 02, 2007
title Crystal Structure Of The Outer Membrane Protein Opdk From Ps Aeruginosa
authors S.Biswas, B.Van Den Berg
compound source
Molecule: Probable Porin
Chain: A, B
Engineered: Yes
Organism_scientific: Pseudomonas Aeruginosa
Strain: Pao1
Gene: Pseudomonas Aeruginosa
Expression_system: Escherichia Coli
Expression_system_strain: C43 E.Coli Cells
Expression_system_vector_type: Pb22
Expression_system_plasmid: Opdk Gene With Shlb Signal Seque Cloned Into Pb22 With 8 His Tag
symmetry Space Group: P 21 21 21
R_factor 0.233 R_Free 0.295
crystal
cell
length a length b length c angle alpha angle beta angle gamma
81.889 96.697 121.411 90.00 90.00 90.00
method X-Ray Diffractionresolution 2.80 Å
ligand C8E enzyme
Gene
Ontology
ChainFunctionProcessComponent
A, B
  • channel activity
  • porin activity


  • Primary referenceCrystal Structure of the Outer Membrane Protein OpdK from Pseudomonas aeruginosa., Biswas S, Mohammad MM, Movileanu L, van den Berg B, Structure. 2008 Jul;16(7):1027-35. PMID:18611376
    Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (126 Kb) [Save to disk]
  • Biological Unit Coordinates (2qtk.pdb1.gz) 62 Kb
  • Biological Unit Coordinates (2qtk.pdb2.gz) 61 Kb
  • LPC: Ligand-Protein Contacts for 2QTK
  • CSU: Contacts of Structural Units for 2QTK
  • Likely Quarternary Molecular Structure file(s) for 2QTK
  • Structure Factors (199 Kb)
  • Retrieve 2QTK in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 2QTK from S2C, [Save to disk]
  • Re-refined 2qtk structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 2QTK 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 2QTK
  • 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 2QTK, from MSDmotif at EBI
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [2qtk_A] [2qtk] [2qtk_B]
  • SWISS-PROT database: [Q9HUR5]
  • Belongs to the outer membrane porin (opr) family according to TCDB.
  • Domain organization of [Q9HUR5_PSEAE] by SWISSPFAM
  • Other resources with information on 2QTK
  • Community annotation for 2QTK 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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